19-4780; Rev 0; 9/98 MIAAILM Low-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers General Description The MAX4539/MAX4540 low-voltage, CMOS 8-channel (MAX4539) and dual 4-channel (MAX4540) multiplexers are ideal for precision ADC calibration and system self- monitoring applications. These calibration multiplexers (cal-muxes) have precision resistor-dividers to generate accurate voltage ratios from an input reference voltage. The reference ratios include 15/4096 and 4081/4096 of the external reference voltage, accurate to 15 bits, and 1/2V+ and 5/8(V+ - V-), accurate to 8 bits. The external reference voltage as well as ground can also be switched to the output. The MAX4539/MAX4540 have enable inputs and address latching. All digital inputs have 0.8V and 2.4V logic thresholds, ensuring both TTL- and CMOS-logic compatibility when using a +5V or a single +5V supply. Protection diodes at all inputs provide an ESD rating >2kV. The MAX4539/MAX4540 operate from a single +2.7V to +12V supply, or from dual supplies of +2.7V to +6V. On-resistance (100Q max) is matched between switch- es to 6Q max. Each switch can handle Rail-to-Rail analog signals. The off leakage current is 0.1nA at TA = +25C and 2nA at Ta = +85C. The MAX4539/MAX4540 are available in small 20-pin DIP, SO, and SSOP packages. Applications Avionics Battery-Operated Equipment Data-Acquisition Systems Audio-Signal Routing Test Equipment Networking Ordering Information Features # On-Chip Gain and Offset Divider Networks Provide 15-Bit Accurate Output Ratios # On-Chip V+ to GND and V+ to V- Divider Networks Provide 8-Bit Accurate Output Ratios Ron: 1000 max @ Ron Matching Between Channels: 62 max @ Charge Injection: 5pC max # Low 0.1nA Off Leakage Current Small 20-Pin SSOP/SO/DIP Packages Pin Configurations/ Functional Diagrams PART TEMP. RANGE PIN-PACKAGE MAX4539CAP 0C to +70C 20 SSOP MAX4539C WP 0C to +70C 20 Wide SO MAX4539C PP 0C to +70C 20 Plastic DIP MAX4539EAP -40C to +85C 20 SSOP MAX4539EWP -40C to +85C 20 Wide SO MAX4539EPP -40C to +85C 20 Plastic DIP MAX4540CAP 0C to +70C 20 SSOP MAX4540C WP 0C to +70C 20 Wide SO MAX4540C PP 0C to +70C 20 Plastic DIP MAX4540EAP -40C to +85C 20 SSOP MAX4540EWP -40C to +85C 20 Wide SO MAX4540EPP -40C to +85C 20 Plastic DIP Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. MAXIM MAXUM V+ MAX4539 LATCH EN CAL -- 7 Oro AO AI I I ' Ao GND V- REFHI 4081R1 4081R1 REFLO COM NOI NOs Noe NO? NCS NO6 NO4 NOS MAX4540 appears at end of data sheet. Maxim Integrated Products 1 For free samples & the latest literature: http://)www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 408-737-7600 ext. 3468. OVSVXVW/6ESVXVWNMAX4539/MAX4540 Low-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers ABSOLUTE MAXIMUM RATINGS V4 to GND onion neeeeceeeeennnaeel -0.3V to +13V V- 10 GND oe een ene icra nceenee asennad -13V to +0.3V V4 10 Veo ene enews tnessneenoeaseenonaeed -0.3V to +13V CAL, LATCH, A_, EN, NO_, COM_, REFHI, REFLO (Note 1)... seen (V- - 0.3V) to (V+ + 0.3V) Continuous Current (any terminal)... cesses eeeneeee +20mA Peak Current, NO_ or COM_ (pulsed at ims, 10% duty cycle MAX)... eee +40mA Continuous Power Dissipation (Ta = +70C) SSOP (derate 8MW/C above +70C) wo. 640mWwW Wide SO (derate 8mMW/C above +70C) oo. eeeees 800mWw Plastic DIP (derate 10.53mW/C above +70C) uw... 842mW Operating Temperature Ranges MAX4539C_P/MAX4540C_P veseeneene 0C to +70C MAX4539E_P/MAX4540E_P -40C to +85C Storage Temperature Range...........0 -65C to +160C Lead Temperature (soldering, 10SC) oo... cece ee nee +300 C Note 1: Signals on NO_, COM_, EN, LATCH, CAL, A_ exceeding V+ or V- are clamped by internal diodes. Limit forward current to maximum current ratings. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICSDual Supplies (V+ = +5V 410%, V- = -5V 410%, VIH = 2.4V, VIL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values at Ta = +25C.) (Note 2) PARAMETER | SYMBOL | CONDITIONS MIN TYP MAX | UNITS SWITCH Analog-Signal Range vous (Note 3) V- V+ Vv i IcomM_= 1mA, VNo_ = +3.0V, TA = +25C 45 75 On-Resistance R > x Q ON V+ = 4.5V, V- = -4.5V TA = TMIN to TMAX 100 On-Resistance Matching _ _ Ta = +25C 1 4 Between Channels ARON i OMe MNO +3.0V, Q (Note 4) Fe GON eS Ta = TMIN to TMAX 6 On-Resistance Flatness Relat Icom. = 1mA; VNo_ = -3V, 0, +3V;} TA = +25C 7 10 (Note 5) V+ = 4.5V; V- = -4.5V TA = TMIN to TMAX 13 NO-Off Leakage Current Vcom_ = +4.5V, VNo_ = F4.5V, TA = +25C -0.1 0.01 0.1 (Note 6) INO(OFA) | v4. = 5.5V, V-= -5.5V Ta=TMINto Tax] -2 2 mn Voom. = 4.5V, MAX4539 TA = +25C -0.2 0.01 0.2 COM-Off Leakage VNo_=#4.5V, Ta = TMIN to TMax| -10 10 ICOM_(OFF) nA Current (Note 6) V+ = 5.5V, Ta = +25C -0.1 0.01 0.1 V- = -5.5V MAX4540 Tan TuntoT 5 5 , A= IMIN tO IMAX - Voom. = 4.5V, MAX4539 TA = +25C -0.2 0.01 0.2 COM-On Leakage Vno. = +4.5V, TA=TMINto TMAx| -10 10 ICOM_(ON) nA Current (Note 6) V+ = 5.5V, Ta = +25C -0.1 0.01 0.1 V- = 5.5V MAX4540 Tal Twn to 7, z 5 , A= 'MIN tO IMAX - 2 MAXLAALow-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers ELECTRICAL CHARACTERISTICSDual Supplies (continued) (V+ = +5V 410%, V- = -5V 410%, ViIH = 2.4V, ViL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values at Ta = +25C.) (Note 2) PARAMETER | SYMBOL | CONDITIONS | MIN TYP MAX | UNITS LOGIC INPUTS Input High Voltage VIH 2.4 1.7 Vv Input Low Voltage VIL 1.4 0.8 Vv Input Current with Input _ _ _ _ Voltage High iH | VEN = VA_= VLATCH = VCAL = V+ 0.1 001 O44 LA Input Current with Input _ _ _ _ | Voltage Low lit VEN = VA_= VLATCH = VCAL = O 0.1 0.01 0.1 pA SUPPLY Power-Supply Range +2.7 +6 Vv VEN = VA_= VLATCH= VCAL=9O | Ta = +25C 1 0.01 1 Positive Supply Current I+ or V+, V+ = 5.5V, V- = -5.5V pA (Note 7) TA=TMINtoTMAX| -5 5 VEN = VA_= VLATCH= VCAL=9O | Ta = +25C 1 0.01 1 Negative Supply Current - or V+, V+ = 5.5V, V- = -5.5V pA (Note 7) TaA=TMINtoTMaAx} = -5 5 VEN = VA_= VLATCH= VCAL=90 | Ta = +25C -1 0.04 1 GND Supply Current IGND or V+, V+ = 5.5V, V- = -5.5V pA (Note 7) TA=TMINtoTMAX| -5 5 DYNAMIC CHARACTERISTICS Transition T7 tr 5 1 TA = +25C 100 150 ransition Time igure ns RANS g Ta = TMIN to TMAX 200 Break-Before-Make toPEN Fiqure 2 TA = +25C 4 10 ns Interval (Note 3) g TA = TMIN to TMAX 1 ; ; Ta = +25C 75 115 Enable Turn-On Time ton Figure 3 ns TA = TMIN to TMAX 175 ; ; TA = +25C 50 100 Enable Turn-Off Time tOFF Figure 3 ns TA = TMIN to TMAX 120 Charge Injection _ _ . _ (Note 3) VCTE CL= inF, VNo_ = 0, Figure 4 TA = +25C 1 5 pc Off-lsolation (Note 8) Viso VEN = 0, f = 1MHz, Figure 5 TA = +25C -75 dB Crosstalk Between VEN = 2.4V, f= 1MHz, _ Channels (Note 9) Ver VGEN = 1Vp-p, Figure 5 TA= 425C ~ dB Logic Input Capacitance CIN f = 1MHz TA = +25C 15 pF NO-Off Capacitance Corr | f= TMHz, VEN = Voom_= 0, Ta = +25C 3 pF Figure 6 . f= 1MHz, VEN = Vcom_ = 0, _ 5 COM-Off Capacitance |Ccom_(OFF Figure 6 TA = +25C 15 pF . f= 1MHz, VEN = 2.4V, _ } COM-On Capacitance |CcoM_(ON) Voom. = 0, Figure 6 TA = +25C 26 pF MAXIM OVSVXVW/6ESVXVWNMAX4539/MAX4540 Low-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers ELECTRICAL CHARACTERISTICSDual Supplies (continued) (V+ = +5V 410%, V- = -5V 410%, ViIH = 2.4V, ViL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values at Ta = +25C.) (Note 2) PARAMETER | SYMBOL | CONDITIONS | MIN TYP MAX | UNITS LATCH TIMING (Note 3) . TA = +25C 45 70 Setup Time ts Figure 7 ns TA = TMIN to TMAX 80 Ta = +25C -10 0 Hold Time tH Figure 7 ns TA = TMIN to TMAx| = -10 Pulse Width, Latch tw Figure 7 TA = +25C 30 15 ns Enable g TaA=TMINto Tmax) 40 . TA = +25C 15 30 Enable Setup Time tES Figure 8 Tac Tun toTy 40 ns A= TMIN to TMAX INTERNAL DIVIDERS 5 14.9/ 15/ 15.1/ VREF = 4.096V, TA= +25C 4096 4096 4096 Offset Divider Output REFHI = 4.096V, LSB = 14.9/ 15/ 15.1/ REFLO = GND TA=TMINtOTMAX| angg 4og6-~ 4096 5 4080.9/ 4081/ 4081.1/ VREF = 4.096V, TA= #25C 4096 4096 4096 Gain Divider Output REFHI = 4.096V, 40809) 4081/ 40814/ LSB REFLO = GND TA=TMINtOTMAX| 4o9g 4096-4096 2032/ 2048/ 2064/ TA= +25C 4096 4096 4096 + ivider Output eferenced to 3032) 2048/ 3084/ V+ / 2) Divider O Ref d to GND LSB TA=TMINtOTMAX| Angg 4096-4096 2544/ 2560/ 2576/ TA= #258 4096 4096 4096 + - V-) Divider Output leferenced to V- (V4 -V)) Divider Outp Ref dtov 2544/ 2560/ 2576/ LSB TA=TMINtOTMAX) Angg 4096 =~ 4096 Output Resistance Offset (Note 3) Ta = +25C 400 800 7 Divider Output Resistance Gain (Note 3) Ta = +25C 400 800 Q Divider Output Resistance _ (V+ /2) Divider (Note 3) Ta = +25C 6 9 kQ Output Resistance 5 (V+ - V-) Divider (Note 3) Ta = +25C 6 9 kQ Output Resistance 5 (REFHI, REFLO, GND) (Note 3) Ta = +25C 400 800 Q Additional Positive Supply (V+ / 2) divider active, _ V+/ V4 / Current ViH = V+, VIL= 0 (Note 3) TA= +25C 24k 13k | =A MAXIMALow-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers ELECTRICAL CHARACTERISTICSDual Supplies (continued) (V+ = +5V 410%, V- = -5V 410%, ViIH = 2.4V, ViL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values at Ta = +25C.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX | UNITS Additional Positive Supply (V+ - V-) divider active, _ (V+ - V-)/ (V+ - V-)/ Current (Note 3) ViH = V+, ViL=0 TA= +25C 24k 13k mA Additional Negative (V+ - V-) divider active, _ (V+ - V-)/ (V+ - V-)/ Supply Current ViH = V+, ViL = 0 (Note 3) TA= +25C 24k Ss 13k mA REFHI, REFLO Input V- V+ Vv Range (Note 3) - 0.3 + 0.3 Input Resistance Offset divider active, Ta = 425C 25 40 kQ (REFHI, REFLO) (Note 3) gain divider active ELECTRICAL CHARACTERISTICSSingle +5V Supply (V+ = +5V 10%, V- = 0, VIH = 2.4V, VIL = 0.8V, Ta = TMIN to TMAX, unless otherwise noted. Typical values at Ta = +25C.) (Note 2) PARAMETER | SYMBOL | CONDITIONS MIN TYP MAX | UNITS SWITCH Analog-Signal Range veo (Note 3) 0 V+ Vv : Icom_= 1mA, Vno_ = 3.0V, Ta = +25C 80 150 On-Resistance RON V+ = 4.5V Ta = Twin to Tuax 300 Q On-Resistance Matching _ _ Ta = +25C 2 8 Between Channels ARON on VNO_= 3.0V, Q (Notes 3, 4) a Ta = TMIN to TMAX 12 On-Resistance Flatness Icom_= 1mA; VNo_ = 38V, 2V, 1V; _ 5 (Note 5) RELAT | vy = 4. 5V TA= +25C 8 o NO-Off Leakage Current | Vcom_ = 1V, 4.5V; TA = +25C -0.1 0.1 nA (Notes 6, 10) NOOFF) | Vino = 4.5V, 1V; V+ = 5.5V Ta=TMINto Tmax] -2 2 MAX4539 TA = +25C -0.2 0.2 COM-Off Leakage com on wot 5 J su TA= TINto Tax} -10 10 sa Current (Notes 6, 10) (OFF) Ve=55V | Mayasao. A= #25C 0.1 0.1 TA = TMIN to TMAX 5 5 MAX4539 TA = +25C -0.2 0.2 COM-On Leakage com (ON ney at Ta= Twin toTwax| 10 fo] Current (Notes 6, 10) (ON) Ve BEV MAXas40 Ta = +25C 0.1 0.1 TA = TMIN to TMAX 5 5 MAXIM 5 OVSVXVW/6ESVXVWNMAX4539/MAX4540 Low-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers ELECTRICAL CHARACTERISTICSSingle +5V Supply (continued) (V+ = +5V 10%, V- = 0, ViIH = 2.4V, ViL = 0.8V, Ta = TmIN to TMAX, unless otherwise noted. Typical values at Ta = +25C.) (Note 2) PARAMETER | SYMBOL | CONDITIONS | MIN TYP MAX | UNITS LOGIC INPUTS (Note 3) Input High Voltage VIH 2.4 1.6 Vv Input Low Voltage VIL 1.4 0.8 Vv Input Current with Input Voltage High lit | Ven = Va_= VLATCH= VCAL = V+ 0.1 0.1 UA Input Current with Input Voltage Low ML VeN = VA_= VLATCH = VCAL = 0 0.1 0.1 yA SUPPLY Power-Supply Range 2.7 12 Vv Positive Supply Current Ven= Va = ViATCH= VeaL=0 | [A= +25C 1 0.01 1 I+ pA (Note 3) or V+, V+ = 5.5V Ta = TMIN to TMAX 5 5 GND Supply Current lanD Ven = VA_= VLATCH= VCAL=O | TA= 425C -1 0.01 1 A (Note 3) or V+, V+ = 5.5V Ta=TmIntoTmax! 10 10 s DYNAMIC CHARACTERISTICS (Note 3) Ti ition Ti t 5 1 TA = +25C 150 200 ransition Time igure ns TRANS 9 TA = TMIN to TMAX 250 Break-Before-Make . TA = +25C 4 10 tOPEN Figure 2 ns Interval TA = TMIN to TMAX 1 . . TA = +25C 115 150 Enable Turn-On Time ton Figure 3 ns Ta = TMIN to TMAX 200 . . TA = +25C 60 100 Enable Turn-Off Time tOFF Figure 3 ns TA = TMIN to TMAX 130 Charge Injection VcTE CL=1nF, VNo_ = 0, Figure 4 TA = +25C 1 5 pc LATCH TIMING (Note 3) ; TA = +25C 70 Setup Time ts Figure 7 ns TA = TMIN to TMAX 80 . TA = +25C -10 0 Hold Time tH Figure 7 ns TA=TMIN to TMAX| -10 Pulse Width, Latch . TA = +25C 30 15 tMPW Figure 7 ns Enable TA=TMIN to Tmax] 40 . TA = +25C 15 30 Enable Setup Time tES Figure 8 ns TA = TMIN to TMAX 40 MAXIMALow-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers ELECTRICAL CHARACTERISTICSSingle +3V Supply (V+ = +2.7V to +3.6V, V- = 0, ViIH = 2.4V, ViL = 0.5V, Ta = TMIN to TMAX, unless otherwise noted. Typical values at Ta = +25C.) (Note 2) PARAMETER | SYMBOL | CONDITIONS MIN TYP MAX | UNITS SWITCH Analog-Signal Range Vcom__ | (Note 3) 0 V+ Vv On-Resistance Ron COM Vno_ = 1.5V, TA = +25C 220 500 Q TA = TMIN to TMAX 600 LOGIC INPUTS (Note 3) Input High Voltage VIH 2.4 1.4 Vv Input Low Voltage VIL 1.4 0.5 Vv DYNAMIC (Note 3) Transition Time tTRANS Fouret SV, VNO8 = 0, TA = +25C 260 400 ns Enable Turn-On Time tON VNo1 = 1.5V, Figure 3 TA = +25C 220 350 ns Enable Turn-Off Time tOFF VNo = 1.5V, Figure 3 TA = +25C 100 150 ns LATCH TIMING (Note 3) Setup Time ts Figure 7 TA = +25C 100 ns Hold Time tH Figure 7 TA = +25C -10 0 ns nel Latch tMPW Figure 7 TA = +25C 40 ns Enable Setup Time tES Figure 8 TA = +25C 50 ns Note 2: The algebraic convention, where the most negative value is a minimum and the most positive value a maximum, is used in Note 3: Note 4: Note 5: Note 6: Note 7: Note 8: Note 9: Note 10: this data sheet. Guaranteed by design. ARON = RON(MAX) - RON(MIN)- Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal range. Leakage parameters are 100% tested at maximum-rated hot temperature and guaranteed by correlation at Ta = +25C. If the logic inputs can float during power-on, connect a 1MQ pull-up from LATCH to V+; see Applications Information section. Off Isolation = 20log10 (VcomM/VNO), Vcom = output, VNo = input to off switch. Between any two switches. Leakage testing with a single supply is guaranteed by testing with dual supplies. MAXIM v OVSVXVW/6ESVXVWNMAX4539/MAX4540 Low-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers (Ta = +25C, unless otherwise noted.) LEAKAGE CURRENT vs. TEMPERATURE 100n 10n = ihn = B op Oo 3 10p S a 100f 10f x 40 -20 0 20 40 60 80 100 120 TEMPERATURE (C) ON-RESISTANCE vs. Vcom (DUAL SUPPLIES) 110 3 V+ =2.4V 3g 100 Ve =-2.4V 2 90 _ 80 a 5 70 60 50 40 30 5 4-3-2 10 12 3 4 5 Vcow (V) ON/OFF TIME vs. SUPPLY VOLTAGE i tf SS & V+, Ve (V) 8 ON- RESISTANCE vs. Vcom AND TEMPERATURE (SINGLE SUPPLY) 100 a 90 Ta = +85C 80 Ta=470C 70 a 6 Ty = 425C B 0 Ta=-40C 40 30 20 V+=5V 10 ve =0 0 0 05 10 15 20 25 30 35 40 45 50 Voom (V) ON-RESISTANCE vs. Voom (SINGLE SUPPLY) 190 2 170 V+=2.7V : 150 _ 130 a 6 110 ton, torr (ns) 90 70 50 30 Voom (V) ON/OFF TIME vs. TEMPERATURE V+=5V V- =-5V MAX4539-08 40-200 0 20 40 60 80 100 TEMPERATURE (C) Typical Operating Characteristics ON-RESISTANCE vs. Vcom AND TEMPERATURE (DUAL SUPPLIES) 60 Ta = 485C MAX4539-03, Ta =470C 50 40 5 20 Ta =425C 100n 10n 100p I+ 1-(A) rs PZ -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C) CHARGE INJECTION vs. Voom 10 g aN i 8 XL DUAL SUPPLIES _ V+=5V, Ve =-5V g NS a 4 NI 2 N Z. > 0 SINGLE SUPPLY V+=5V | | 2 Ld - -4 -3 -2 -1 01 2 3 4 5 Vcow (V) MAXIMLow-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers (Ta = +25C, unless otherwise noted.) LOSS (4B) 2050.0 2049.5 OUTPUT RATIO (LSB) 2049.0 15.10 15.08 15.06 15.04 15.02 15.00 14.98 14.96 14.94 14.92 14.90 OUTPUT RATIO (LSB) FREQUENCY RESPONSE 180 INSERTION LOSS 140 100 60 20 -20 -60 -100 ISOLATION -140 -180 01 1 10 100 1000 FREQUENCY (MHz) (V+ / 2) DIVIDER OUTPUT vs. TEMPERATURE V+ =+5V : V- =-5V x -40 -200 0 20 40 60 80 100 TEMPERATURE (C) OFFSET DIVIDER OUTPUT vs. TEMPERATURE VpeFH = 4.096V 2 VREFLO = 0 3 V+ =5V V- =-5V -40 -20 0 2 40 60 80 100 TEMPERATURE (C) MAXIM TOTAL HARMONIC DISTORTION vs. FREQUENCY 04 = Ve =-5V 3 6002 Vin =5Vp-p a <> go & a S 2 001 2 x 0.001 10 100 1k 10k 400k FREQUENCY (Hz) (V+ - V-) DIVIDER OUTPUT vs. TEMPERATURE 2558.5 1 a V+=5V 3 Ve =-5V 3 2558.4 a 4 hn @ 25588 < = IN 5 N E 2558.2 N 5 NQ 2558.1 Pa . IN 2558.0 40 -20 0 20 40 60 80 100 TEMPERATURE (C) GAIN DIVIDER OUTPUT vs. REFHI 4081.10 7 =-0 | 4081.08 Vow oe 4081.06 v-=-5Vor0 | am 4081.04 a 3 4081.02 f 4081.00 fe = 4080.98 5 SD 4080.96 4080.94 4080.92 4080.90 20 25 30 35 40 45 50 REFHI (V) Typical Operating Characteristics (continued) Rout vs. TEMPERATURE (V+ / 2 DIVIDER AND V+ - V- DIVIDER) 6030 MAX4539- 12 OVSVXVW/6ESVXVWN 5980 (V+/ 2) Rour 5930 5880 5 5830 5780 5730 5680 20 0 2 40 60 80 100 TEMPERATURE (C) GAIN DIVIDER OUTPUT vs. TEMPERATURE 4081.10 4081.08 4081.06 g 4081.04 S 4081.02 4081.00 4080.98 4080.96 4080.94 4080.92 4080.90 VpeFH = 4.096V VREFLO = 0 V+=5V V- =-5V MAX4539-14 UT = 3 20 0 2 40 60 80 100 TEMPERATURE (C) -40 OFFSET DIVIDER OUTPUT vs. REFHI 15.10 15.08 15.06 15.04 15.02 VpeFLo = 0 V+=5V V- =-5Vor0 MAX4539- 17, 15.00 14.98 14.96 14.94 14.92 14.90 OUTPUT RATIO (LSB) 45 20 25 3.0 3.5 5.0 REFHI (V) 40MAX4539/MAX4540 Low-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers Typical Operating Characteristics (continued) (Ta = +25C, unless otherwise noted.) Rout vs. TEMPERATURE (OFFSET DIVIDER AND GAIN DIVIDER) (V+- V-) DIVIDER OUTPUT vs. SUPPLY VOLTAGE (V+ / 2) DIVIDER OUTPUT vs. SUPPLY VOLTAGE 2055 5 2565 8 3 2054 g i = 3 3 2053 GAIN DIVIDER ge 2052 & ongo =a a & 39 S 2051 3 Gq 2 2 3 f 2050 & 220 5 5 OFFSET = 2049 & 5 2 2555 S 2048 o V+=5V Vy. =-5V 2047 VREFHI =4.096V 2046 2045 2550 40 -2 0 2 40 60 80 100 2 4 6 1 2 3 4 5 TEMPERATURE (C) V+, Ve (V) V+, V- (V) Pin Descriptions MAX4539 (Single 8-to-1 Cal-Mux) MAX4540 (Dual 4-to-1 Cal-Mux) PIN NAME FUNCTION PIN NAME FUNCTION 1 V+ Positive Supply Voltage 1 V+ Positive Supply Voltage 2 GND Ground 2 GND Ground 3 V- Negative Supply Voltage 3 V- Negative Supply Voltage 4 REFHI Reference High Voltage Input 4 REFHI Reference High Voltage Input 5 REFLO Reference Low Voltage Input 5 REFLO Reference Low Voltage Input 6 COM Multiplexer Output 6 COMA Multiplexer Output A 7 NO1 Channel Input 1 7 NOTA Channel Input 1A 8 NO2 Channel Input 2 8 NO2A Channel Input 2A 9 NO3 Channel Input 3 9 NO3A Channel Input 3A 10 NO4 Channel Input 4 10 NO4A Channel Input 4A 11 NOS Channel Input 5 11 NO1B Channel Input 1B 12 NO6 Channel Input 6 12 NO2B Channel Input 2B 13 NO7 Channel Input 7 13 NO3B Channel Input 3B 14 NO8 Channel Input 8 14 NO4B Channel Input 4B 15 A2 Address Bit 2 15 COMB Multiplexer Output B 16 Al Address Bit 1 16 Al Address Bit 1 17 AO Address Bit 0 17 AO Address Bit 0 18 CAL Calibration Control Input 18 CAL Calibration Control Input 19 EN Multiplexer Enable 19 EN Multiplexer Enable 20 LATCH Address Latch Control Input 20 LATCH Address Latch Control Input 10 MAXIMLow-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers Truth Tables MAX4539 (Single 8-to-1 Cal-Mux) CAL A2 Al AO EN LATCH COM X X X X 0 X isatones and dividers open. COM is high-Z. Latch contents set x x x x 1 1 State is latched when LATCH is high. 0 0 0 0 1 0 NO1 0 0 0 1 1 0 NO2 0 0 1 0 1 0 NO3 0 0 1 1 1 0 NO4 0 1 0 0 1 0 NOS 0 1 0 1 1 0 NO6 0 1 1 0 1 0 NO7 0 1 1 1 1 0 NO8 1 0 0 0 1 0 (V+ / 2) Divider Mode, Vcom = 2048/4096 V+ 1 0 0 1 1 0 REFHI 1 0 1 0 1 0 REFLO 1 0 1 1 1 0 (V+ - V-) Divider Mode , Vcom = 2560/4096 (V+ - V-) 1 1 0 0 1 0 GND 1 1 0 1 1 0 Gain Divider Mode, Vcom = 4081/4096 (VREFHI - VREFLO) 1 1 1 0 1 0 Offset Divider Mode, Vcom = 15/4096 (VREFHI - VREFLO) 1 1 1 1 1 0 All switches and dividers open. COM is high-Z. X = Dont care MAX4540 (Dual 4-to-1 Cal-Mux) OVSVXVW/6ESVXVWN CAL Al AO EN LATCH COMA COMB X X X 0 X All switches and dividers open. All switches and dividers open. COMA is high-Z. COMB is high-Z. x x x 1 1 State is latched State is latched 0 0 0 1 0 NO1A NO1B 0 0 1 1 0 NO2A NO2B 0 1 0 1 0 NO3A NO3B 0 1 1 1 0 NO4A NO4B 1 0 0 1 0 GND GND 1 0 1 1 0 Gain Divider Mode REFLO 1 1 0 1 0 Offset Divider Mode REFLO { { { { 0 All switches and dividers open. All switches and dividers open. COMA is high-Z. COMB is high-Z. X = Dont care MAXUM 11MAX4539/MAX4540 Low-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers Detailed Description The MAX4539/MAX4540 are multiplexers with addition- al calibration features. Internal resistor-dividers gener- ate accurate voltage ratios from an external voltage reference, allowing zero- and full-scale calibration of ADC systems as well as facilitation of system self-moni- toring. To access the resistor-dividers, assert the CAL pin. When CAL and ENABLE are asserted, the three address pins select one of the various resistor-divider or external reference outputs. The MAX4539/MAX4540 also contain a LATCH input that allows the state of the CAL and address signals to be captured. Calibration Functions The Gain Divider, Offset Divider, REHI and REFLO modes allow calibration of offset and gain errors in ADC systems. The Gain Divider mode outputs a volt- age ratio that is 4081/4096 of VREFHI - VREFLO, accu- rate to 0.1/4096, or better than 15 bits. The Offset Divider mode outputs a voltage ratio that is 15/4096 of VREFHI - VREFLO, also accurate to 0.1/4096. The REFHI mode allows the voltage on the REFHI pin to be switched to the output. The REFLO mode allows the voltage on the REFLO pin to be switched to the output. Self-Monitoring Functions The self-monitoring functions are intended to allow an ADC to measure its own supply voltage. The MAX4539 has an internal divide-by-two resistor string between V+ and GND that is accurate to 8 bits (16/4096). It also has a 5/8 resistor string between V+ and V- that is also accurate to 8 bits. This divider string allows measure- ment of the negative supply with a unipolar ADC. GND can also be switched to the output, eliminating the need for an additional multiplexer channel. Applications Information The MAX4539/MAX4540s construction is typical of most CMOS analog switches. There are three supply pins: V+, V-, and GND. The positive and negative power sup- plies provide drive to the internal CMOS switches and set the limits of the analog voltage on any switch. Reverse-biased ESD protection diodes are internally connected between each analog signal pin and both V+ and V-. If the voltage on any pin exceeds V+ or V-, one of these diodes will conduct. During normal operation, these reverse-biased ESD diodes leak, forming the only current drawn from V-. Virtually all the analog-leakage current is through the ESD diodes. Although the ESD diodes on a given sig- nal pin are identical, and therefore fairly well bal- anced, they are reverse-biased differently. Each is 12 biased by either V+ or V- and the analog signal. This means their leakage varies as the signal varies. The difference in the two-diode leakage from the signal path to the V+ and V- pins constitutes the analog- signal path leakage current. All analog-leakage cur- rent flows to the supply terminals, not to the other switch terminal, which explains how both sides of a given switch can show leakage currents of either the same or opposite polarity. There is no connection between the analog-signal paths and GND. The analog-signal paths consist of an N-channel and P-channel MOSFET with their sources and drains paralleled and their gates driven out of phase with V+ and V- by the logic-level translators. V+ and GND power the internal logic and logic-level translators and set the input-logic thresholds. The logic- level translators convert the logic levels to switched V+ and V- signals to drive the gates of the analog switches. This drive signal is the only connection between the logic supplies and the analog supplies. All pins have ESD protection to V+ and to V-. Increasing V- has no effect on the logic-level thresh- olds, but it does increase the drive to the P-channel switches, which reduces their on-resistance. V- also sets the negative limit of the analog-signal voltage. The logic-level thresholds are CMOS- and TTL- com- patible when V+ is +5V. As V+ is raised, the threshold increases slightly; when V+ reaches +12V, the level threshold is about 3.2V. Although that is above the TTL output high-level minimum of 2.4V, it is still compatible with CMOS outputs. Bipolar-Supply Operation The MAX4539/MAX4540 operate with bipolar supplies between +2.7V and +6V. The V+ and V- supplies need not be symmetrical, but their sum cannot exceed the absolute maximum rating of 13V. Note: Do not connect the MAX4539/MAX4540 V+ pin to +3V AND connect the logic-level input pins to TTL logic-level signals. TTL logic-level outputs can exceed the absolute maximum ratings, which will cause damage to the part and/or external circuits. Caution: The absolute maximum V+ to V- differential voltage is 13V. Typical +6-Volt or 12-Volt sup- plies with +10% tolerances can be as high as 13.2V. This voltage can damage the MAX4539/MAX4540. Even +5% tolerance supplies may have overshoot or noise spikes that exceed 13V. MAXIMALow-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers Single-Supply Operation The MAX4539/MAX4540 operate from a single supply between +2.7V and +12V when V- is connected to GND. All of the bipolar precautions must be observed. However, these parts are optimized for +5V operation, and most AC and DC characteristics are degraded sig- nificantly when departing from +5V. As the overall sup- ply voltage (V+ to V-) is lowered, switching speed, on-resistance, off isolation, and distortion will degrade. (see the Typical Operating Characteristics section). Single-supply operation also limits signal levels and interferes with ground referenced signals. When V- = 0, AC signals are limited to -0.3V. Voltages below -0.3V can be clipped by the internal ESD-protection diodes, and the parts can be damaged if excessive current flows. Power Up During power up, on-chip latches will strobe whatever addresses are present if EN goes high before LATCH reaches a logic high. When this condition occurs, one of the internal dividers connected between the supplies may inadvertently turn on, causing higher supply current (~200UA supply current) when the enable input is tog- gled. Avoid this condition by ensuring that EN pin stays low until the remaining logic inputs are valid. To accom- plish this, connect a resistor from EN to ground or apply a low voltage to EN before the other logic inputs go high. Power Off When power to the MAX4539/MAX4540 is off (i.e., V+ = V- = 0), the Absolute Maximum Ratings still apply. This means that neither logic-level inputs on NO_ nor sig- nals on COM_ can exceed +0.3V. Voltages beyond +0.3V cause the internal ESD-protection diodes to con- duct, and the parts can be damaged if excessive cur- rent flows. Chip Information TRANSISTOR COUNT: 561 Test Circuits/Timing Diagrams +5V V+ V+ EN NOt +3V Tt LATCH CAL NO2-NO7 or = MAMXIMM = AD MAX4539 Noh ay COM Voom GND V- 35pF 502 | 3002 -5V |/--4 +5V 7m Vt EN NO1B i] tt LATCH NO2B-NO3B CAL NO1A-NO2A No MAXLAA = MAX4540 NO4B F- -3v A COMB Voom GND V- 35pF 502 3002 ||/- _-- LOGIC V+ INPUT Vnot, Vwo1B SWITCH OUTPUT Voom oy Vwos, Vwo4B >| tTRANS tTRANS Figure 1. Transition Time MAXIM 13 OVSVXVW/6ESVXVWNMAX4539/MAX4540 Low-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers Test Circuits/Timing Diagrams (continued) +5V l V+ AT Lose INPUT Lo CAL NOt-NOB 43V Vs ov _ MAXLAM V AQ MAX4539 0.8VNo In a M 90% 1 COM Voom SWITCH 500 GND V- OUTPUT | 3002 T S5pF Voom ; ov }we OPEN =z=- = = -5V = = +5V l V+ EN Ve v tp<20ns LOGIC + 50% te <20ns TT LATCH NO1A-NO4B INPUT 1 CAL NO1B-NO4B +V Va ov _ MAAXLMA NA t me nto. 90% 90% COMA Voom SWITCH 500 GND V. OUTPUT | 3002 T S5pF Voom ; OV jag OPEN z= =z = -5V = = Figure 2. Break-Before-Make Interval +5V | V+ Ven ey NOt 43V LATCH NO2-NO8 F> _ CAL = ta< 20ns MAXIM Ven V+ Tso No coy, F< 200s AQ = MAX4539 ov Al COM Voo 502 A2 GND V- | 3002. L Spr 0.8(Vnot, note) Vv z= Tz = = 5V -5V = = coM * 90% 90% Ven ey V+ NOB BV LATCH NO2B-NO4B CAL NO1A-NO4A = ov 1) MAXI = ton | ~ torr MAX4540 A COMB Voow 50Q GND V- | 3002 T 35pF = = = = -5Y = = Figure 3. Enable Switching Time 14 MAXIMALow-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers Test Circuits/Timing Diagrams (continued) +5V Ps | NO_ V+ Ve LOGIC EN ON OFF ON MNAXLAA a ov Ve _ _| RN Ss CHANNEL (JA, MANAS39 V, L SELECT] com Ao _,_ = CAL Of fr LATCH C= 10F Voom Y = GND Ve [ AVour IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER = TL r = ERROR Q WHEN THE CHANNEL TURNS OFF. a 5 ~ Q=AVouTX CL +5V Rg | NO_ VE Ve LOGIC EN ON OFF ON MAXIAA ne ov Vs CHANNEL ;-{ao MAX4540 * L SELECT _ At Voom_ A = CAL ff NG AVouT LATCH C= 10F Voom Y = GND V- AVout IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER = i T = ERROR Q WHEN THE CHANNEL TURNS OFF. = -5V ~ Q= AVouTX CL Figure 4. Charge Injection +5V 10nF m L NETWORK \ = ANALYZER OFF ISOLATION = 20log UL Ve Vin | 500 502 Vin V+ EN NO CON _ MAXIMA y Vour MAX4539 Lt CROSSTALK = 200g 7 ee MAX4540 Voow | MEAS. = REF A COM. g e L LATCH CAL V- GNDJ == $n ag = 1onF Co Co = sv NOTES: MEASUREMENTS ARE STANDARDIZED AGAINST SHORT AT SOCKET TERMINALS. ~ OFF- ISOLATION IS MEASURED BETWEEN COM AND OFP TERMINAL ON EACH SWITCH. ON LOSS |S MEASURED BETWEEN COM AND ON TERMINAL ON EACH SWITCH. Figure 5. Off-lsolation/Crosstalk MAXIM 15 OVSVXVW/6ESVXVWNMAX4539/MAX4540 Low-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers Test Circuits/Timing Diagrams (continued) CHANNEL SELECT {A +5V | V+ he NOt MAMXLAA A0 COM CAL, LATCH, MAX4539 NOB GND EN V- -5V 1MHz +Q=t-O CAPACITANCE ANALYZER f= 1MHz +5V | V+ No1A}O MNAXLAN i {MHz CHANNEL ( TAT = MAX4540 NO4A-Q-O CAPACITANCE SELECT \ ANALYZER A0 coma Ho = f=1MHz CAL, LATCH, GND EN V- -5V Figure 6. NO_/COM_ Capacitance V+ EN V+ LATCH +3V ] NO2 NOt, NOB-NO8 COM ~ GND V- = V- LATCH 50% imMpw ADDRESS (A_) M AO = iy MAXUM MAX4539 CAL LATCH I I 50% 50% 50% ! EN bo I ! 1 em tes Me Figure 7. Setup Time, Hold Time, Latch Pulse Width 16 Figure 8. Enable Setup Time MAXIMALow-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers Pin Configurations/Functional Diagrams (continued) V+ GND REFHI REFLO COMA NOIA NO2A NOSA NO4A MAXIAA MAx4540 LATCH CAL AO Al COMB NO4B NO3B NO2B NO1B MAXIM 17 OVSVXVW/6ESVXVWNMAX4539/MAX4540 Low-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers Package Information INCHES MILLIMETERS INCHES MILLIMETERS DIM| MIN | MAX | MIN | MAX A | 0.068 [0.078 | 1.73 | 1.99 MIN _| MAX _| MIN MAX | | | | | | | Al 0.002 0.008 0.05 071 0.239 [0.249 | 6.07 | 6.33 | 14L 0.239 [0.249 | 6.07 | 6.33 | 16L E oH SSOP.EPS wo 7 bos a 7 0.27810.289 | 7.071 7.33| 20L : : Oe 18. 0.317 |0.328 | 8.07| 8.33/24. SEE VARIATIONS 0.397|0.407 |10.07 | 10.33 0.205 [0.209 | 5.20 | 5.38 see 0.0256 BSC [0.65 BSC 0.301 [0.311 | 7.65 | 7.90 0.025 [0.037 | 0.63 | 0.95 0 8 0 B [ \ C Ct" fon 1 Selies |b et tA Oo |/o|o|v QT {Lye |Mie|o a Al NOTES: z 1, D&E DO NOT INCLUDE MOLD FLASH. MVLA A I VI 2, MOLD FLASH OR PROTRUSIONS NOT TO 7m EXCEED .15mm .006%> PACKAGE OUTLINE, SSOP, 5.3X.65mm APPROVAL DOCUMENT CONTROL NO. REV 3. CONTROLLING DIMENSION: MILLIMETER m_00S6 rath 18 MAXIMALow-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers Package Information (continued) PDIPN EPS: m D LJ As i ~wHL o--15 fh LL cl eA eB INCHES [MILLIMETERS INCHES [MILLIMETERS MIN | MAX | MIN | MAX MIN [| MAX | MIN | MAX |N [MS0O1 A|--- 0.200 |--- [5.08 | [D 0.34810.390| 8.84| 9.91 [8 [AB At|0.015 |--- [038 |---| [D10.735|0.7651|18.67 [19.43 [14 [AC Az|0.125 [0175 13.18 (445 | [D10.74510.765118.92 [19.43 lie [AA A3/0.055 [0.080 [1.40 [2.03 | [D10.88510.915 le2.48/e3.e4|18 [AD B 10.016 00221041 0.56 | [D/1.015 11.045 125,78126.54|20 AE B1 10.045 [0.065 1114 [165 | [Dl114 [1.265 128,96|32.13 |e4 [AF c 0.008 [0.012 [0.20 [0.30 | [D/1.360 11.380 134.54[35.05 [ea [x5 D1 10.005 10.080 [013 [2.03 F 10.300 10.325|7.62 [8.26 NOTES: F1{0.240 [0.310 [6.10 [7.87 3, MOLD FLASH OR PRUTRUSIINS NAT e 0.100 c.34 TO EXCEED .lSmm .0067> eAl0.300 | --- [7.62 | --- 4. MEETS EDEC MSODISXX AS SHOWN eB) --- 10.400 | -- |10.16 IN ABOVE TABLE | [0115 [0.150 le.92 [3.81 > SIMILIAR TO YEDEC MO-058AB LulAax Zul [PACKAGE FAMILY OUTLINE: PDIP 300" (4) 21-0043 A MAXIM 19 OVSVXVW/6ESVXVWNMAX4539/MAX4540 Low-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers Package Information (continued) SOICWEPS. : ! a \} 0-8 rn? v=. INCHES [MILLIMETERS INCHES ILLIMETERS MIN | MAX | MIN | MAX I MAX | MIN | MAX 0.093/ 0.104 [2.35] 2.65 0.004 | 0.012 |0.10 | 0.30 0.014 | 0.019 10.35 | 0.49 0.009 | 0.013 | 0.23 | 0.32 mo Cla lzimj|o Jol /e |e oO oO dl oO . Le7 0.291 | 0.299) 7.40} 7.60 NOTES: 0.394| 0.419 | 10.00} 10.65 1, D&E DO NOT INCLUDE MOLD FLASH 0.010 | 0.030/0.e5/0.75 2. MOLD FLASH iB PROTRUSIONS NOT x! . Gq ") 0.016 | 0.050 | 0.40 | 1.27 . LEADS TO BE CLIPL-ANAR WITHIN 3 102mm .004*> 4, CONTROLLING DIMENSION: MILLIMETER 5. MEETS JEDEC MS013-xx AS SHOWN IN ABOVE TABLE 6. N = NUMBER OF PINS MMAXIW [PACKAGE FAMILY OUTLINE: SOIC a0") 21-0042 A Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 20 Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 1998 Maxim Integrated Products Printed USA MAXIM is a registered trademark of Maxim Integrated Products.