19-1747; Rev 0; 7/00 3 Single SPST Analog Switches ____________________________Features The MAX4675/MAX4676 single analog switches feature 3 (max) on-resistance (RON) and 0.7 flatness when operating from dual 5V supplies. These switches can handle Rail-to-Rail(R) analog signals. Off-leakage current is 0.1nA at TA = +25C. The MAX4675/MAX4676 are ideal in low-distortion applications and are the preferred solution over mechanical relays in automated test equipment or applications where current switching is required. They are more reliable than mechanical relays, have low power requirements (<1A), and are available in a space-saving 6-pin SOT23 package. The MAX4675 has a single normally open (NO) switch, and the MAX4676 has a single normally closed (NC) switch. 3 (max) RON 0.7 (max) RON Flatness Dual 2.7V to 5.5V or Single +2.7V to +5.5V Supply Range Off-Isolation -75dB at 1MHz, Dual Supply -65dB at 1MHz, Single Supply -3dB Bandwidth 250MHz Rail-to-Rail Signal Handling The MAX4675/MAX4676 operate from either a single +2.7V to +5.5V or dual 2.7V to 5.5V supplies, making them ideal for use in digital card applications and single-ended 75 systems. ________________________Applications Reed Relay Replacement _______________Ordering Information TEMP. RANGE PART Test Equipment Communications Systems PBX, PABX Systems PINPACKAGE SOT MARK MAX4675EUT-T -40C to +85C 6 SOT23-6 AAND MAX4676EUT-T -40C to +85C 6 SOT23-6 AANE Audio Signal Routing Avionics ADC Systems Data-Acquisition Systems Pin Configurations/Functional Diagrams/Truth Tables TOP VIEW V+ 1 6 IN COM 2 5 NO 4 GND MAX4675 V- 3 V+ 1 6 IN COM 2 5 NC 4 GND MAX4676 V- 3 SOT23 SOT23 MAX4675 IN SWITCH MAX4676 IN SWITCH 0 1 OFF ON 0 1 ON OFF Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. ________________________________________________________________ Maxim Integrated Products 1 For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. MAX4675/MAX4676 ________________General Description MAX4675/MAX4676 3 Single SPST Analog Switches ABSOLUTE MAXIMUM RATINGS V+ to GND ................................................................-0.3V to +6V V- to GND .................................................................+0.3V to -6V V+ to V- ..................................................................................12V IN to GND .....................................................-0.3V to (V+ + 0.3V) All Other Pins (Note 1) ..........................(V- - 0.3V) to (V+ + 0.3V) Continuous Current (NO, NC, COM) ..............................100mA Peak Current (NO, NC, COM, pulsed at 1ms (10% duty cycle).........................................................200mA Continuous Power Dissipation (TA = +70C) 6-Pin SOT23 (derate 8.7mW/C above +70C)............691mW Operating Temperature Range ...........................-40C to +85C Junction Temperature ......................................................+150C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C 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. Note 1: Signals on NO, NC, COM, or IN exceeding V+ or V- will be clamped by internal diodes. Limit forward diode current to maximum current rating. ELECTRICAL CHARACTERISTICS--DUAL SUPPLIES (V+ = +5V 10%, V- = -5V 10%, GND = 0, VIH = +2.4V, VIL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS V+ V ANALOG SWITCH Input Voltage Range On-Resistance VCOM, VNO, VNC RON On-Resistance Flatness (Note 4) RFLAT NC or NO Off-Leakage Current IN_(OFF) COM Off-Leakage Current COM On-Leakage Current ICOM(OFF) ICOM(ON) VV+ = 4.5V, V- = -4.5V, ICOM = 50mA; VNO or VNC = 3.3V V+ = 4.5V, V- = -4.5V, ICOM = 50mA; VNO or VNC = 3.3V, 0 TA = +25C 2.4 TA = TMIN to TMAX 4 TA = +25C 0.4 TA = TMIN to TMAX V+ = 5.5V, V- = -5.5V, TA = +25C VCOM = 4.5V; VNO or VNC = TA = TMIN to TMAX 4.5V 3 0.7 1.0 -1 0.1 1 nA -10 V+ = 5.5V, V- = -5.5V, VCOM = +4.5V; VNO or VNC = 4.5V TA = +25C -1 TA = TMIN to TMAX -10 V+ = 5.5V, V- = -5.5V, VCOM = 4.5V; VNO or VNC = 4.5V or floating TA = +25C -2 TA = TMIN to TMAX -20 10 0.1 1 nA 10 0.1 2 nA 20 LOGIC INPUT Input Low Voltage VIL Input High Voltage VIH 2.4 Input Leakage Current IIN -1 0.8 V 0.005 1 A 135 300 V DYNAMIC Turn-On Time Turn-Off Time 2 tON tOFF V+ = +4.5V, V- = -4.5V; VNO or VNC = 3.3V, RL= 300, CL= 35pF, Figure 2 V+ = +4.5V, V- = -4.5V; VNO or VNC = 3.3V, RL= 300, CL= 35pF, Figure 2 TA = +25C ns TA = TMIN to TMAX TA = +25C 375 50 110 ns TA = TMIN to TMAX _______________________________________________________________________________________ 125 3 Single SPST Analog Switches (V+ = +5V 10%, V- = -5V 10%, GND = 0, VIH = +2.4V, VIL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Notes 2, 3) PARAMETER Charge Injection SYMBOL Q CONDITIONS MIN TYP MAX UNITS RGEN = 0, CL = 1nF, VGEN = 0, Figure 3 TA = +25C 87 pC TA = +25C -75 dB 250 MHz Off-Isolation VISO RL = 50, CL = 5pF, f = 1MHz, Figure 4 On-Channel Bandwidth (-3dB) BW RS = 50, RL = 50 C(N_OFF) f = 1MHz, Figure 5 TA = +25C 85 pF C(COMOFF) f = 1MHz, Figure 5 TA = +25C 85 pF C(ON) f = 1MHz, Figure 5 TA = +25C 350 pF NC or NO Off-Capacitance COM Off-Capacitance On-Capacitance POWER SUPPLY Supply Voltage 2.7 V+, V- Positive Supply Current I+ VIN = 0 or 5.5V, V+ = 5.5V, V- = -5.5V Negative Supply Current I- VIN = 0 or 5.5V, V+ = 5.5V, V- = -5.5V TA = +25C 5.5 0.002 TA = TMIN to TMAX 1 10 TA = +25C -1 TA = TMIN to TMAX -10 -0.002 V A A ELECTRICAL CHARACTERISTICS--SINGLE SUPPLY (V+ = +5V 10%, V- = 0, GND = 0, VIH = +2.4V, VIL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS V+ V ANALOG SWITCH Input Voltage Range On-Resistance VCOM, VNO, VNC RON On-Resistance Flatness (Note 4) RFLAT NC or NO Off-Leakage Current IN_(OFF) COM Off-Leakage Current ICOM(OFF) 0 V+ = 4.5V; ICOM = 50mA; VNO or VNC = 3.3V TA = +25C V+ = 4.5V; ICOM = 50mA; VNO or VNC = 1.5V, 2.5V, 3.3V TA = +25C V+ = 5.5V; VNO or VNC = 4.5V or 0; VCOM = 0 or 4.5V TA = +25C -1 TA = TMIN to TMAX -10 TA = +25C -1 TA = TMIN to TMAX -10 V+ = 5.5V; VNO or VNC = 4.5V or 0; VCOM = 0 or 4.5V 3.5 TA = TMIN to TMAX 5.75 7.5 0.4 TA = TMIN to TMAX 1.6 2 0.1 1 nA 10 0.1 1 nA 10 _______________________________________________________________________________________ 3 MAX4675/MAX4676 ELECTRICAL CHARACTERISTICS--DUAL SUPPLIES (continued) MAX4675/MAX4676 3 Single SPST Analog Switches ELECTRICAL CHARACTERISTICS--SINGLE SUPPLY (continued) (V+ = +5V 10%, V- = 0, GND = 0, VIH = +2.4V, VIL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Notes 2, 3) PARAMETER COM On-Leakage Current SYMBOL ICOM (ON) CONDITIONS V+ = 5.5V; VNO or VNC = 0, 4.5V, or floating; VCOM = 0 or 4.5V MIN TYP MAX TA = +25C -2 0.2 2 TA = TMIN to TMAX -20 UNITS nA 20 LOGIC INPUT Input Low Voltage VIL Input High Voltage VIH 2.4 0.8 Input Leakage Current IIN -1 V V 0.005 1 350 700 A DYNAMIC Turn-On Time Turn-Off Time Charge Injection Off-Isolation tON tOFF Q VISO On-Channel Bandwidth (-3dB) NC or NO Off-Capacitance COM Off-Capacitance On-Capacitance V+ = +4.5V; VNO or VNC = +3.3V, RL = 300, CL= 35pF, Figure 2 TA = +25C V+ = +4.5V; VNO or VNC = +3.3V, RL = 300, CL = 35pF, Figure 2 TA = +25C ns TA = TMIN to TMAX 850 55 150 ns TA = TMIN to TMAX 160 RGEN = 0, CL = 1nF, VGEN = 2.5V, Figure 3 TA = +25C 31 pC RL = 50, CL = 5pF, f = 1MHz, Figure 4 TA = +25C -65 dB 150 MHz RS = 50, RL = 50 C(N_OFF) f = 1MHz, Figure 5 TA = +25C 85 pF C(COMOFF) f = 1MHz, Figure 5 TA = +25C 85 pF C(ON) f = 1MHz, Figure 5 TA = +25C 350 pF POWER SUPPLY Supply Voltage V+ Positive Supply Current I+ 2.7 VIN = 0 or 5V, V+ = 5.5V TA = +25C 5.5 0.002 TA = TMIN to TMAX 1 10 V A Note 2: Parameters are 100% tested at +25C only and guaranteed by correlation through the full-rated temperature range. Note 3: 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 4: Flatness is defined as the difference between the maximum and minimum value of RON as measured over the specified analog signal ranges. 4 _______________________________________________________________________________________ 3 Single SPST Analog Switches V = 2.5V V+ = 5V V- = -5V 2.5 18 MAX4675 toc02 2.7 MAX4675 toc01 4.0 3.5 ON-RESISTANCE vs. VCOM (SINGLE SUPPLY) ON-RESISTANCE vs. VCOM AND TEMPERATURE (DUAL SUPPLIES) TA = +85C 14 V = 5V RON () RON () TA = +25C 2.1 V+ = +3.3V 8 V+ = +5V 6 1.9 1.0 4 1.7 0.5 TA = 0C 0 2 TA = -40C 0 1.5 -6 -4 -2 0 2 4 6 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 0 6 1 2 3 VCOM (V) VCOM (V) ON-RESISTANCE vs. VCOM AND TEMPERATURE (SINGLE SUPPLY) ON/OFF-LEAKAGE CURRENT vs. TEMPERATURE CHARGE INJECTION vs. VCOM 4.0 3.5 3.0 TA = -40C 2.5 TA = 0C 12 2.0 2 3 4 5 70 ICOM(ON) 8 6 10 0 50 70 90 110 130 TURN-ON/TURN-OFF TIMES vs. VCOM (DUAL SUPPLIES) TURN-ON/TURN-OFF TIMES vs. VCOM (SINGLE SUPPLY) 700 -4 -2 0 300 V+ = IV-| 250 600 tON, tOFF (ns) tONB 150 tOFFA 100 tOFFB tON 500 tONA 400 300 tOFFB -4 -2 0 VCOM (V) 2 4 6 tOFF 50 0 -6 150 tOFFA 100 0 200 100 200 50 tON, tOFF (ns) 200 2 TURN-ON/TURN-OFF TIMES vs. SUPPLY VOLTAGE (DUAL SUPPLIES) A: V+ = +5.5V B: V+ = +3V tONB -6 VCOM (V) 800 MAX4675 toc07 tONA 250 DUAL SUPPLIES SINGLE SUPPLY 20 ICOM(OFF) TEMPERATURE (C) A: V+ = +3.5V, V- = -3.5V B: V+ = +5V, V- = -5V 50 30 VCOM (V) 300 60 40 4 6 6 80 MAX4675 toc08 1 4 90 0 0 6 100 10 2 V+ = +5V 5 MAX4675 toc06 V+ = 5V V- = -5V Q (pC) 4.5 14 MAX4675 toc05 TA = +85C ON/OFF-LEAKAGE CURRENT (nA) MAX4675 toc04 TA = +25C tON, tOFF (ns) 4 VCOM (V) 5.0 RON () V+ = +2.7V 10 MAX4675 toc09 RON () 2.0 1.5 12 2.3 V = 3V V- = 0 16 3.0 2.5 MAX4675 toc03 ON-RESISTANCE vs. VCOM (DUAL SUPPLIES) 0 0 1 2 3 4 5 VCOM (V) 6 7 8 9 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 SUPPLY VOLTAGE (V+, V-) _______________________________________________________________________________________ 5 MAX4675/MAX4676 Typical Operating Characteristics (TA = +25C, unless otherwise noted.) Typical Operating Characteristics (continued) (TA = +25C, unless otherwise noted.) TURN-ON/TURN-OFF TIMES vs. TEMPERATURE (DUAL SUPPLIES) 2.0 120 tON 1.0 0.5 250 tON 80 60 tOFF 40 2.0 2.5 3.0 3.5 4.0 4.5 5.0 -20 0 20 40 60 80 100 10 V+ = +5V V- = -5V 8 110 FREQUENCY RESPONSE MAX4675 toc13 10 60 TEMPERATURE (C) POWER-SUPPLY CURRENT vs. TEMPERATURE 10 -3dB AT 250MHz -10 I+ V+ = +5V V- = -5V BANDWIDTH 4 IGND 2 LOSS (dB) I+, IGND, I- (nA) -40 TEMPERATURE (C) SUPPLY VOLTAGE (V) 6 tOFF 0 -40 5.5 tON 150 50 0 0 200 100 V+ = +5V V- = -5V 20 tOFF V+ = +5V V- = 0 300 tON, tOFF (ns) tON, tOFF (ns) 100 1.5 350 MAX4675 toc14 VCOM = V+/2 MAX4675 toc11 140 MAX4675 toc10 2.5 TURN-ON/TURN-OFF TIMES vs. TEMPERATURE (SINGLE SUPPLY) MAX4675 toc12 TURN-ON/TURN-OFF TIMES vs. SUPPLY VOLTAGE (SINGLE SUPPLY) tON, tOFF (s) MAX4675/MAX4676 3 Single SPST Analog Switches 0 -2 -4 -30 -50 OFF-ISOLATION -75dB AT 1MHz -70 I- -6 -90 -8 -10 -110 -40 -20 0 20 40 60 80 100 0.01 TEMPERATURE (C) 0.1 1 10 100 1000 FREQUENCY (MHz) Pin Description PIN 6 NAME FUNCTION MAX4675 MAX4676 1 1 V+ 2 2 COM 3 3 V- 4 4 GND 5 -- NO Analog Switch Normally Open Terminal -- 5 NC Analog Switch Normally Closed Terminal 6 6 IN Logic Input Positive Supply Analog Switch Common Terminals Negative Supply Ground _______________________________________________________________________________________ 3 Single SPST Analog Switches 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, then V-, followed by the logic inputs, NO, NC, or COM. If proper power-supply sequencing is not possible, add two small-signal diodes (D1, D2) in series with the supply pins (Figure 1). Adding diodes reduces the analog signal range to one diode drop below V+ and one diode drop above V- but does not affect the devices' low switch resistance and low leakage characteristics. Device operation is unchanged, and the difference between V+ and V- should not exceed 12V. Power-supply bypassing improves noise margin and prevents switching noise from propagating from the V+ supply to other components. A 0.1F capacitor connected from V+ to GND is adequate for most applications. V+ Vg V- Figure 1. Overvoltage Protection Using External Blocking Diodes Timing Diagrams/Test Circuits MAX4675 MAX4676 V+ SWITCH INPUT V+ COM NO OR NC LOGIC INPUT SWITCH OUTPUT 50% CL 35pF t OFF IN LOGIC INPUT VOUT V- SWITCH OUTPUT 0.9 x VOUT t ON CL INCLUDES FIXTURE AND STRAY CAPACITANCE. RL RL + RON ( 0.9 x V0UT 0 V- VOUT = VCOM 50% 0 VOUT RL 300 GND t r < 20ns t f < 20ns +3V LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE. ) Figure 2. Switching Time V+ MAX4675 MAX4676 VOUT V+ RGEN VOUT COM NC OR NO VOUT IN OFF CL V GEN GND IN ON OFF VVVIN = 3.0V IN OFF ON OFF Q = (V OUT )(C L ) IN DEPENDS ON SWITCH CONFIGURATION; INPUT POLARITY DETERMINED BY SENSE OF SWITCH. Figure 3. Charge Injection _______________________________________________________________________________________ 7 MAX4675/MAX4676 Applications Information Timing Diagrams/Test Circuits (continued) V+ 10nF SIGNAL GENERATOR 0dBm COM MAX4675 MAX4676 V+ V+ COM IN ANALYZER V+ 10nF MAX4675 MAX4676 NC OR NO GND V- 0 OR 2.4V IN CAPACITANCE METER f = 1MHz 0 OR 2.4V NC OR NO GND V- VV- Figure 4. Off-Isolation/On-Channel Bandwidth Figure 5. Channel On/Off-Capacitance Package Information 6LSOT.EPS MAX4675/MAX4676 3 Single SPST Analog Switches 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) 2000 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.