19-4611; Rev 4; 6/04 Improved, Quad, SPST Analog Switches New Features Plug-In Upgrades for Industry-Standard DG441/DG442 Improved rDS(ON) Match Between Channels(4max) Guaranteed rFLAT(ON) Over Signal Range (9max) Improved Charge Injection (10pC max) Improved Off-Leakage Current Over Temperature (<5nA at +85C) Withstand Electrostatic Discharge (2000V min) per Method 3015.7 Maxim's redesigned DG441/DG442 analog switches now feature on-resistance matching (4 max) between switches and guaranteed on-resistance flatness over the signal range (9 max). These low on-resistance switches conduct equally well in either direction. They guarantee low charge injection (10pC max), low power consumption (1.65mW), and an ESD tolerance of 2000V minimum per Method 3015.7. The new design offers lower off-leakage current over temperature (less than 5nA at +85C). The DG441/DG442 are quad, single-pole/single-throw (SPST) analog switches. The DG441 has four normally closed switches, and the DG442 has four normally open switches. Switching times are less than 250ns for tON and less than 70ns for tOFF. These devices operate from a single +10V to +30V supply, or bipolar 4.5V to 20V supplies. Maxim's improved DG441/DG442 continue to be fabricated with a 44V silicon-gate process. Existing Features Low rDS(ON) (85 max) Single-Supply Operation +10V to +30V Bipolar-Supply Operation 4.5V to 20V Low Power Consumption (1.65mW max) Rail-to-Rail Signal Handling TTL/CMOS-Logic Compatible Ordering Information Applications Sample-and-Hold Circuits Communication Systems Test Equipment Battery-Operated Systems Heads-Up Displays Fax Machines PBX, PABX Guidance and Control Systems Audio-Signal Routing Military Radios Modems PART TEMP. RANGE PIN-PACKAGE DG441CJ 0C to +70C 16 Plastic DIP DG441CY DG441C/D DG441DJ 0C to +70C 0C to +70C -40C to +85C 16 Narrow SO Dice* 16 Plastic DIP DG441DY DG441DK -40C to +85C -40C to +85C 16 Narrow SO 16 CERDIP DG441ETE -40C to +85C 16 Thin QFN (5mm x 5mm) Ordering Information continued at end of data sheet. *Contact factory for dice specifications. **Contact factory for availability and processing to MIL-STD-883B. Pin Configurations/Functional Diagrams/Truth Tables TOP VIEW TOP VIEW IN1 1 16 IN2 IN1 1 16 IN2 D1 2 15 D2 D1 2 15 D2 S1 3 14 S2 S1 3 14 S2 V- 4 13 V+ V- 4 13 V+ GND 5 GND 5 DG441 12 N.C. DG442 12 N.C. S4 6 11 S3 S4 6 11 S3 D4 7 10 D3 D4 7 10 D3 IN4 8 IN4 8 9 IN3 DIP/SO IN3 DIP/SO DG441 LOGIC SWITCH 0 1 9 ON OFF LOGIC 0 1 SWITCHES SHOWN FOR LOGIC "0" INPUT DG442 SWITCH OFF ON S1 1 V- 2 D1 IN1 IN2 D2 D1 IN1 IN2 D2 16 15 14 13 16 15 14 13 12 S2 S1 1 12 S2 11 V+ V- 2 11 V+ GND 3 10 N.C. S4 4 9 S3 DG441 DG442 GND 3 10 N.C. S4 4 9 S3 5 6 7 8 5 6 7 8 D4 IN4 IN3 D3 D4 IN4 IN3 D3 THIN QFN THIN QFN N.C. = Not Internally Connected _______________________________________________________________________________________ For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. 1 DG441/DG442 General Description ABSOLUTE MAXIMUM RATINGS Voltage Referenced to VV+.......................................................................................44V GND ...................................................................................25V VL .................................................(GND - 0.3V) to (V+ + 0.3V) Digital Inputs, VS, VD (Note 1)......(V- - 2V) to (V+ + 2V) or 30mA (whichever occurs first) Continuous Current (any terminal) ......................................30mA Peak Current, S or D (pulsed at 1ms, 10% duty-cycle max) .................................100mA Continuous Power Dissipation (TA = +70C) Plastic DIP (derate 10.53mW/C above +70C) ..........842mW Thin QFN (derate 33.3mW/C above +70C).............2667mW Narrow SO (derate 8.70mW/C above +70C) ............696mW CERDIP (derate 10.00mW/C above +70C) ...............800mW Operating Temperature Ranges DG441C/DG442C ...............................................0C to +70C DG441D, E/DG442D, E ...................................-40C to +85C DG441AK/DG442AK .....................................-65C to +150C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C Note 1: Signals on S, D, or IN 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 CHARACTERISTICS--Dual Supplies (V+ = 15V, V- = -15V, GND = 0V, VINH = 2.4V, VINL = 0.8V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP (Note 2) MAX UNITS SWITCH Analog-Signal Range Drain-Source On-Resistance VANALOG rDS(ON) (Note 3) -15 V+ = 13.5V, V- = -13.5V, TA = +25C IS = -10mA, TA = TMIN to TMAX VD = 8.5V or -8.5V 15 50 85 100 On-Resistance Match Between Channels (Note 4) rDS(ON) V+ = 15V, V- = -15V, VD = 10V, IS = -10mA TA = +25C 4 TA = TMIN to TMAX 5 On-Resistance Flatness (Note 4) V+ = 15V, V- = -15V, VD = 5V or -5V, IS = -10mA TA = +25C 9 rFLAT(ON) TA = TMIN to TMAX 15 Drain Off-Leakage Current (Note 5) Drain On-Leakage Current (Note 5) -0.50 TA = +25C V+ = 16.5V, V- = -16.5V, VD = 15.5V, C, D TA = TMAX VS = 15.5V A -.0.50 TA = +25C V+ = 16.5V, V- = -16.5V, VD = 15.5V, C, D TA = TMAX VS = 15.5V A -0.50 IINH VIN = 2.4V -500 0.01 500 nA IINL VIN = 0.8V -500 0.01 500 nA IS(OFF) ID(OFF) ID(ON) or IS(ON) 0.01 V TA = +25C V+ = 16.5V, V- = -16.5V, VD = 15.5V, C, D TA = TMAX VS = 15.5V A Source Off-Leakage Current (Note 5) DG441/DG442 Improved, Quad, SPST Analog Switches 0.50 -5 5 -20 20 0.01 0.50 -5 5 -20 20 0.08 nA nA 0.50 -10 10 -20 20 nA DIGITAL Input Current with Input Voltage High Input Current with Input Voltage Low 2 _______________________________________________________________________________________ Improved, Quad, SPST Analog Switches (V+ = 15V, V- = -15V, GND = 0V, VINH = 2.4V, VINL = 0.8V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP (Note 2) MAX UNITS SUPPLY Power-Supply Range V+, V- 4.5 Positive Supply Current I+ All channels on or off, V+ = 16.5V, V- = -16.5V, VIN = 0V or 5V Negative Supply Current I- All channels on or off, V+ = 16.5V, V- = -16.5V, VIN = 0V or 5V Ground Current IGND TA = +25C -1 TA = TMIN to TMAX -5 20.0 V 15 100 A -0.0001 1 A All channels on or off, V+ = 16.5V, V- = -16.5V, VIN = 0V or 5V -100 5 -15 A DYNAMIC Turn-On Time tON Turn-Off Time tOFF Charge Injection (Note 3) Off-Isolation Rejection Ratio (Note 6) VS = 10V, RL = 1k, Figure 2 TA = +25C 150 250 ns DG441, VD = 10V, Figure 2 TA = +25C 90 120 DG442, VD = 10V, Figure 2 TA = +25C 110 170 Q CL = 1nF, VGEN = 0V, RGEN = 0, Figure 3 TA = +25C 5 10 OIRR RL = 50, CL = 5pF, f = 1MHz, Figure 4 TA = +25C 60 dB RL = 50, CL = 5pF, f = 1MHz, Figure 5 TA = +25C -100 dB Crosstalk (Note 7) ns pC Source Off-Capacitance CS(OFF) f = 1MHz, Figure 6 TA = +25C 4 pF Drain Off-Capacitance CD(OFF) f = 1MHz, Figure 6 TA = +25C 4 pF Drain On-Capacitance CD(ON) f = 1MHz, Figure 6 TA = +25C 16 pF _______________________________________________________________________________________ 3 DG441/DG442 ELECTRICAL CHARACTERISTICS--Dual Supplies (continued) ELECTRICAL CHARACTERISTICS--Single Supply (V+ = 12V, V- = 0V, GND = 0V, VINH = 2.4V, VINL = 0.8V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SYMBOL MIN CONDITIONS TYP (Note 2) MAX UNITS SWITCH Analog Signal Range VANALOG Drain-Source On-Resistance (Note 3) 0 V+ = 10.8V, VD = 3V, 8V, IS = 1.0mA rDS(ON) TA = +25C 12 100 V 160 TA = TMIN to TMAX 200 SUPPLY Power-Supply Range V+ Positive Supply Current I+ All channels on or off, VIN = 0V or 5V Negative Supply Current I- All channels on or off, VIN = 0V or 5V Ground Current 10 IGND TA = +25C -1 TA = TMIN to TMAX -5 All channels on or off, VIN = 0V or 5V -100 30 V 15 100 A -0.0001 1 5 -15 A A DYNAMIC Turn-On Time tON VS = 8V, Figure 2 TA = +25C 300 400 ns Turn-Off Time tOFF VS = 8V, Figure 2 TA = +25C 60 200 ns CL = 1nF, VGEN = 0V TA = +25C 5 10 pC Charge Injection (Note 3) Q Note 2: Typical values are for design aid only, are not guaranteed, and are not subject to production testing. The algebraic convention, where the most negative value is a minimum and the most positive value a maximum, is used in this data sheet. Note 3: Guaranteed by design. Note 4: On-resistance match between channels and flatness is guaranteed only with bipolar-supply operation. Flatness is defined as the difference between the maximum and the minimum value of on-resistance as measured at the extremes of the specified analog range. Note 5: Leakage parameters IS(OFF), ID(OFF), and ID(ON) are 100% tested at the maximum rated hot temperature and guaranteed by correlation at +25C. Note 6: Off-Isolation Rejection Ratio = 20log (VD/VS), VD = output, VS = input to off switch. Note 7: Between any two switches. __________________________________________Typical Operating Characteristics (TA = +25C, unless otherwise noted.) ON-LEAKAGE CURRENTS 2 V+ = 15V V- = -15V TA = +125C TA = +85C 0 3.0 1 2.5 VIN (V) 2 1 3.5 V+ = 15V V- = -15V OFF-LEAKAGE (nA) 3 SWITCHING THRESHOLD vs. BIPOLAR SUPPLY VOLTAGE OFF-LEAKAGE CURRENTS 4 ON-LEAKAGE (nA) DG441/DG442 Improved, Quad, SPST Analog Switches TA = +125C 4 2.0 TA = +85C 0 MIN 1.5 -1 -2 -15 MAX 0.5 -1 -10 -5 5 0 VS, VD (V) 10 15 0 -15 -10 -5 5 0 VS, VD (V) 10 15 5 10 15 BIPOLAR SUPPLY VOLTAGE (V) _______________________________________________________________________________________ 20 Improved, Quad, SPST Analog Switches ON-RESISTANCE vs. VD AND BIPOLAR VOLTAGE AND TEMPERATURE ON-RESISTANCE vs. VD AND BIPOLAR SUPPLY VOLTAGE ON-RESISTANCE vs. VD AND UNIPOLAR SUPPLY VOLTAGE 250 V+ = 15V, V- = -15V 180 225 200 120 150 100 150 125 V+ = 10V 100 V+ = 15V 5V 120 90 50 30 V+ = 20V 25 10V 15V 60 75 rDS(ON) () rDS(ON) () rDS(ON) () 175 0 5 10 15 ON-RESISTANCE vs. VD AND UNIPOLAR SUPPLY VOLTAGE AND TEMPERATURE 0 +10 +20 TA = +25C -15 350 200 300 120 tON 80 50 V+ = 12V V- = 0V 40 4 8 12 5 VD (V) 10 15 tON tOFF 0 20 10 15 20 UNIPOLAR SUPPLY VOLTAGE (V) BIPOLAR SUPPLY VOLTAGE (V) CHARGE INJECTION vs. VD VOLTAGE (DUAL SUPPLY) 40 25 CHARGE INJECTION vs. VD VOLTAGE (SINGLE SUPPLY) 10 V+ = 15V V- = -15V CL = 1nF V+ = 12V V- = 0V CL = 1nF 20 Q (pC) 0 150 50 0 0 200 100 tOFF 25 15 250 TIME (ns) TA = -55C 10 SWITCHING TIMES vs. UNIPOLAR SUPPLY VOLTAGE 240 -5 5 SWITCHING TIMES vs. BIPOLAR SUPPLY VOLTAGE 160 TIME (ns) 75 -10 0 VD (V) Q (pC) rDS(ON) () 100 TA = -55C VD (V) TA = +125C 125 TA = +25C 0 -10 VD (V) 150 60 20 20V -20 20 TA = +125C 40 0 0 80 0 0 -20 -10 -15 -10 0 VD (V) 10 15 0 5 10 15 VD (V) _______________________________________________________________________________________ 5 DG441/DG442 ____________________________Typical Operating Characteristics (continued) (TA = +25C, unless otherwise noted.) DG441/DG442 Improved, Quad, SPST Analog Switches _____________________Pin Description PIN NAME FUNCTION DIP/SO QFN 1, 16, 9, 8 15, 14, 7, 6 IN1-IN4 Input 2, 15, 10, 7 16, 13, 8, 5 D1-D4 3, 14, 11, 6 1, 12, 9, 4 S1-S4 4 2 V- 5 3 GND Ground 12 10 N.C. Not Internally Connected 13 11 V+ -- EP PAD Analog Switch Drain Terminal Analog Switch Source Terminal Negative-Supply Voltage Input Overvoltage Protection Proper power-supply sequencing is recommended for all CMOS devices. Do not exceed the absolute maximum ratings because stresses beyond the listed ratings can cause permanent damage to the devices. Always sequence V+ on first, followed by V- and logic inputs. If power-supply sequencing is not possible, add two small, external signal diodes in series with supply pins for overvoltage protection (Figure 1). Adding external diodes reduces the analog-signal range to 1V below V+ and 1V above V-, but low switch resistance and low leakage characteristics are unaffected. Device operation is unchanged, and the difference between V+ and V- should not exceed +44V. V+ Positive-Supply Voltage Input--Connected to Substrate Exposed Pad. Connect PAD to V+. __________Applications Information Operation with Supply Voltages Other Than 15V Using supply voltages other than 15V reduces the analog signal range. The DG441/DG442 switches operate with 4.5V to 20V bipolar supplies or with a +10V to +30V single supply; connect V- to 0V when operating with a single supply. Also, all device types can operate with unbalanced supplies such as +24V and -5V. The Typical Operating Characteristics graphs show typical on-resistance with 20V, 15V, 10V, and 5V supplies. (Switching times increase by a factor of two or more for operation at 5V.) 6 D S Vg V- Figure 1. Overvoltage Protection Using External Blocking Diodes _______________________________________________________________________________________ Improved, Quad, SPST Analog Switches +15V LOGIC INPUT DG441 DG442 +3V tf < 20ns tr < 20ns 50% V+ SWITCH INPUT S D VD 0V VOUT IN RL tOFF VOUT SWITCH OUTPUT 0.8 x VOUT 0.8 x VOUT 35pF V- GND LOGIC INPUT +3V -15V 0V REPEAT TEST FOR CHANNELS 2, 3, AND 4. tON CL (INCLUDES FIXTURE AND STRAY CAPACITANCE) RL VOUT = VD RL + rDS(ON) ( LOGIC INPUT WAVEFORM IS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE. ) Figure 2. Switching Time VOUT +15V DG441 DG442 V+ RGEN VOUT IN DG441 OFF ON OFF S D OFF ON CL 1nF VGEN GND IN DG442 VOUT IN V-15V VIN = +3V OFF Q = VOUT x CL Figure 3. Charge Injection 10nF 10nF +15V +15V DG441 DG442 DG441 DG442 SIGNAL GENERATOR 10dBm SIGNAL GENERATOR V+ D RGEN = 50 10dBm 50 S RGEN = 50 0.8V or 2.4V IN 0.8V or 2.4V S NETWORK ANALYZER V+ D GND V- RL -15V Figure 4. Off-Isolation Rejection Ratio 0.8V or 2.4V NETWORK ANALYZER 10nF IN2 IN1 D S GND V- RL 10nF -15V Figure 5. Crosstalk (repeat for channels 3 and 4) _______________________________________________________________________________________ 7 DG441/DG442 ______________________________________________Timing Diagrams/Test Circuits DG441/DG442 Improved, Quad, SPST Analog Switches Timing Diagrams/ Test Circuits (continued) 10nF D TEMP. RANGE 0C to +70C 16 Plastic DIP +V DG442CY DG442C/D DG442DJ 0C to +70C 0C to +70C -40C to +85C 16 Narrow SO Dice* 16 Plastic DIP DG442DY DG442DK -40C to +85C -40C to +85C 16 Narrow SO 16 CERDIP DG442ETE -40C to +85C 16 Thin QFN (5mm x 5mm) DG442CJ 0.8V or 2.4V S V- 10nF -15V -55C to +125C PIN-PACKAGE +15V IN GND PART DG442AK CAPACITANCE METER f = 1MHz Ordering Information (continued) 16 CERDIP** -55C to +125C 16 CERDIP** DG442AK *Contact factory for dice specifications. **Contact factory for availability and processing to MIL-STD-883B. Figure 6. Source/Drain-On/Off Capacitance 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. 8 ___________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 (c) 2004 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.