Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches

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1 ; Rev ; 4/2 Quad, Rail-to-Rail, Fault-Protected, General Description The are quad, single-pole/single-throw (SPST), fault-protected analog switches. They are pin compatible with the industry-standard nonprotected DG411/DG412/DG413. These new switches feature fault-protected inputs and Rail-to-Rail signalhandling capability. All terminals are protected from overvoltage faults up to ±36V with power on and up to ±4V with power off. During a fault condition, the COM, NO, or NC terminal becomes an open circuit and only microamperes of leakage current flow from the source. On-resistance is 35Ω (max) and is matched between switches to 1.5Ω (max) at +25 C. The DG411F has four normally closed (NC) switches. The DG412F has four normally open (NO) switches. The DG413F has two NC and two NO switches. These CMOS switches operate with dual power supplies ranging from ±4.5V to ±2V or a single supply between +9V and +36V. All digital inputs have +.8V and +2.4V logic thresholds, ensuring both TTL and CMOS logic compatibility when using ±15V or a single +12V supply. For supply voltages of ±5V, +5V, and +3V, refer to the MAX4711/MAX4712/MAX4713 data sheet. Applications Communication Systems Signal Routing Test Equipment Data Acquisition Industrial and Process Control Systems Avionics Redundant/Backup Systems Features No Power-Supply Sequencing Required Rail-to-Rail Signal Handling All Switches Off with Power Off All Switches Off when is Off and is On ±4V Fault Protection with Power Off ±36V Fault Protection with ±15V Supplies Control Line Fault Protection from -.3V to + 4V Pin Compatible with Industry-Standard DG411/DG412/DG413 2ns (typ) Fault Response Time 35Ω (max) R ON with ±15V Supplies ±4.5V to ±2V Dual Supplies +9V to +36V Single Supply TTL- and CMOS-Compatible Logic Inputs with ±15V or Single +9V to +15V Supplies Ordering Information PART TEMP RANGE PIN-PACKAGE DG411FEUE -4 C to +85 C 16 TSSOP DG411FDY -4 C to +85 C 16 SO DG411FDJ -4 C to +85 C 16 Plastic DIP Ordering Information continued at end of data sheet. TOP VIEW IN1 1 COM1 2 Pin Configurations 16 IN2 15 COM2 NC NC DG411F 12 N.C. NC NC3 COM4 7 1 COM3 IN4 8 9 IN3 Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. Functional Diagram appears at end of data sheet. Pin Configurations continued at end of data sheet. DIP/TSSOP/SO DG411F LOGIC SWITCH N.C. = NOT CONNECTED. SWITCHES SHOWN FOR LOGIC INPUT. ALL SWITCHES ARE OFF WITH POWER REMOVED. 1 ON OFF Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at , or visit Maxim s website at

2 ABSOLUTE MAXIMUM RATINGS (Voltages Referenced to )...-.3V to +44V...-44V to +.3V to...-.3v to +44V IN_... ( -.3V) to ( + 4V) NO_, NC_ to COM_ (Note1)... -4V to +4V COM_, NO_, NC_ Voltage with Power On (Note 1) V to +36V COM_, NO_, NC_ Voltage with Power Off (Note 1)... -4V to +4V Continuous Current (any terminal)... ±3mA Peak Current COM_, NO_, NC_ (pulsed at 1ms, 1% duty cycle)...±1ma Continuous Power Dissipation (T A = +7 C) 16-Pin TSSOP (derate 9.4mW/ C above +7 C) mW 16-Pin SO (derate 8.7mW/ C above +7 C)...696mW 16-Pin Plastic DIP (derate 1.53mW/ C above +7 C) mW Operating Temperature Range C to +85 C Junction Temperature C Storage Temperature Range C to +16 C Lead Temperature (soldering, 1s) C Note 1: COM_, NO_, and NC_ pins are fault protected. Signals on COM_, NO_, and NC_ exceeding -36V to +36V may damage the device during power-on conditions. When the power is off, the maximum range is -4V to +4V. 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 ±15V Dual Supplies ( = +15V, = -15V, V IH = +2.4V, V IL = +.8V, =, T A = T MIN to T MAX, unless otherwise noted. Typical values are at T A = +25 C.) (Notes 2, 3) PARAMETER SYM B O L CONDITIONS T A MIN TYP MAX UNITS ANALOG SWITCH Fault-Free Analog Signal Range V C OM _, V N O_, V N C _ E V I +25 C On-Resistance R COM_ = 1mA, ON V NO_, V NC_ = ±1V E 45 On-Resistance Match Between Channels (Note 4) R ON I COM_ = 1mA, +25 C V NO_, V NC_ = ±1V E 2. I +25 C 1. 3 On-Resistance Flatness R COM_ = 1mA, FLAT(ON) V NO_, V NC_ = ±5V, E 4 NO_, NC_ Off-Leakage Current COM_ Off-Leakage Current COM_ On-Leakage Current FAULT Fault-Protected Analog Signal Range I NO_(OFF), I NC_(OFF) I COM_(OFF) I COM_(ON) V COM_ = ±1V, +25 C V NO_, V NC_ = 1V E V COM_ = ±1V, +25 C V NO_, V NC_ = 1V E V COM_ = ±1V, +25 C V NO_, V NC_ = ±1V or floating E = +15V, = -15V E V COM_, =, = -15V E V NO_, V NC_ = = E Ω Ω Ω na na na V NO_ or NC_ Off-Leakage Current I NO_, I NC_ V NO_, V NC_ = ±36V COM_ Off-Leakage Current I COM_ V COM_ = ±36V E E

3 ELECTRICAL CHARACTERISTICS ±15V Dual Supplies (continued) ( = +15V, = -15V, V IH = +2.4V, V IL = +.8V, =, T A = T MIN to T MAX, unless otherwise noted. Typical values are at T A = +25 C.) (Notes 2, 3) PARAMETER SYM B O L CONDITIONS T A MIN TYP MAX UNITS NO_ or NC_ Leakage Current I NO_, I NC_ V NO_, V NC_ = ±4V, = = COM_ Leakage Current I COM_ V COM_ = ±4V, = = NO_ or NC_ Off-Leakage Current I NO_, I NC_ E E =, = -15V, V NO_, V NC_ = ±36V E =, = -15V, COM_ Off-Leakage Current I COM_ V COM_ = ±36V E Fault-Trip Threshold E V ± Fault Output Turn-Off Delay V NO_, V NC_ = ±36V, R L = 1kΩ E 2 ns ± Fault Recovery Time V NO_, V NC_ = ±36V, R L = 1kΩ E 1 µs SWITCH DYNAMICS V +25 C Turn-On Time t NO_ or V NC_ = ±1V, R L = 3Ω, ON C L = 35pF, Figure 2 E 22 V +25 C Turn-Off Time t NO_ or V NC_ = ±1V, R L = 3Ω, OFF C L = 35pF, Figure 2 E 16 Break-Before-Make Time Delay (DG413F only) (Note 6) V +25 C 2 15 t NO_ or V NC_ = ±1V, R L = 1Ω, BBM C L = 1pF, Figure 3 E 1 ns ns ns Charge Injection Q V GEN =, R GEN =, C L = 1nF, Figure C 5 pc NO_ or NC_ Off-Capacitance C N_(OFF) f = 1MHz, Figure C 15 pf COM_ Off-Capacitance C COM_(OFF) f = 1MHz, Figure C 15 pf COM_ On-Capacitance C COM_(ON) f = 1MHz, Figure C 47 pf Off-Isolation (Note 7) V ISO f = 1MHz, R L = 5Ω, C L = 15pF, P IN = dbm, Figure 6 Channel-to-Channel Crosstalk (Note 8) LOGIC INPUT V CT f = 1MHz, R L = 5Ω, C L = 15pF, P IN = dbm, Figure C -65 db +25 C -15 db Input Logic High V IH E 2.4 V Input Logic Low V IL E.8 V Input Leakage Current I IN V IN_ = or E POWER SUPPLY Power-Supply Range, E ±4.5 ±2 V Supply Current I+ All V IN_ = +5V, V COM_ = All V IN_ = or, V COM_ = +25 C E C E 4 3

4 ELECTRICAL CHARACTERISTICS ±15V Dual Supplies (continued) ( = +15V, = -15V, V IH = +2.4V, V IL = +.8V, =, T A = T MIN to T MAX, unless otherwise noted. Typical values are at T A = +25 C.) (Notes 2, 3) PARAMETER SYM B O L CONDITIONS T A MIN TYP MAX UNITS ANALOG SWITCH V Fault-Free Analog Signal Range COM_, E V V NO_, V NC_ I COM_ = 1mA, +25 C On-Resistance R ON Ω V NO_, V NC_ = +1V E 12 On-Resistance Match Between Channels (Note 4) NO_, NC_ Off-Leakage Current COM_ Off-Leakage Current COM_ On-Leakage Current FAULT PARAMETER SYM B O L CONDITIONS T A MIN TYP MAX UNITS Supply Current I- Fault-Protected Analog Signal Range NO_ or NC_ Off-Leakage Current COM_ Off-Leakage Current NO_ or NC_ Leakage Current R ON I NO_(OFF), I NC_(OFF) I COM_(OFF) I COM_(ON) All V IN_ = +5V, V COM_ = All V IN_ = or, V COM_ = All V IN_ = +5V, V COM_ = Supply Current I All V IN_ = or, V COM_ = ELECTRICAL CHARACTERISTICS Single +12V Supply I COM_ = 1mA, +25 C 1. 4 V NO_, V NC_ = +1V E 5 V COM_ = +1V, +1V, +25 C V NO_, V NC_ = +1V, +1V E V COM_ = +1V, +1V, +25 C V NO_, V NC_ = +1V, +1V E V COM_ = +1V, +1V, +25 C V NO_, V NC_ = +1V, +1V, or floating E V COM_, Power on E V V NO_, V NC_ Power off E I NO_, I NC_ V NO_, V NC_ = ±36V I COM_ V NO_, V NC_ = ±36V I NO_, I NC_ Supplies off, V NO_, V NC_ = ±4V +25 C E C E C 2 35 E C.1 1 E 1 ( = +12V, =, V IH = +2.4V, V IL = +.8V, =, T A = T MIN to T MAX, unless otherwise noted. Typical values are at T A = +25 C.) (Notes 2, 3) E E E Ω na na na 4

5 ELECTRICAL CHARACTERISTICS Single +12V Supply (continued) ( = +12V, =, V IH = +2.4V, V IL = +.8V, =, T A = T MIN to T MAX, unless otherwise noted. Typical values are at T A = +25 C.) (Notes 2, 3) PARAMETER SYM B O L CONDITIONS T A MIN TYP MAX UNITS COM_ Leakage Current I COM_ Supplies off, V NO_, V NC_ = ±4V E Fault Output Turn-Off Delay V NO_, V NC_ = +36V, R L = 1kΩ E 2 ns +Fault Recovery Time V NO_, V NC_ = +36V, R L = 1kΩ E 1 µs SWITCH DYNAMICS V +25 C Turn-On Time t NO_ or V NC_ = +1V, R L = 3Ω, ON C L = 35pF, Figure 2 E 315 V +25 C Turn-Off Time t NO_ or V NC_ = +1V, R L = 3Ω, OFF C L = 35pF, Figure 2 E 14 Break-Before-Make Time Delay (DG413F Only) (Note 6) Charge Injection LOGIC INPUT V +25 C 2 5 t NO_ or V NC_ = +1V, R L = 1Ω, BBM C L = 1pF, Figure 3 E 1 Q V GEN =, R GEN =, C L = 1nF, Figure 4 ns ns ns +25 C 5 pc Input Logic High V IH E 2.4 V Input Logic Low V IL E.8 V Input Leakage Current POWER SUPPLY I IN V IN_ = or E Power-Supply Range E V Supply Current I+ All V IN_ = +5V, V COM_ = +6V All V IN_ = or, V COM_ = +6V +25 C E C E 25 Note 2: The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column. Note 3: Electrical specifications at -4 C are not production tested and guaranteed by design. Note 4: R ON = R ON(MAX) - R ON(MIN). Note 5: Leakage parameters are 1% tested at maximum rated temperature and with dual supplies and guaranteed by design at +25 C. Note 6: Guaranteed by design. Note 7: Off-Isolation = 2 log 1 [V COM /(V NC or V NO )], V COM = output, V NC or V NO = input to off switch. Note 8: Between any two switches. 5

6 (T A = +25 C, unless otherwise noted.) RON (Ω) RON (Ω) ON-RESISTANCE vs. V COM AND TEMPERATURE (SINGLE SUPPLY) 1 = +12V = = +15V = -15V ON-RESISTANCE vs. V COM (DUAL SUPPLIES) = +5V = -5V = +1V = -1V = +2V = -2V V COM (V) T A = +85 C T A = +25 C T A = -4 C V COM (V) DG411 toc1 DG411 toc4 RON (Ω) LEAKAGE CURRENT (pa) 1, ON-RESISTANCE vs. V COM AND TEMPERATURE (DUAL SUPPLIES) 5 = +15V = -15V ON/OFF-LEAKAGE CURRENT vs. TEMPERATURE I COM(ON) T A = +85 C T A = +25 C T A = -4 C V COM (V).1 DUAL SUPPLIES: = +15V, = -15V TEMPERATURE ( C) Typical Operating Characteristics I COM(OFF) I NO(OFF), I NC(OFF) DG411 toc2 DG411 toc5 RON (Ω) Q (pc) ON-RESISTANCE vs. V COM (SINGLE SUPPLY) = +9V = = +12V = = +15V = = +24V = 2 = +28V = +36V = = V COM (V) CHARGE INJECTION vs. V COM DUAL SUPPLIES: ±15V V COM (V) SINGLE SUPPLY: +12V DG411 toc3 DG411 toc6 SUPPLY CURRENT () SUPPLY CURRENT vs. TEMPERATURE DUAL SUPPLIES: = +15V, = -15V, V IN_ = +5V I I TEMPERATURE ( C) I+ DG411 toc7 THRESHOLD VOLTAGE (V) LOGIC-LEVEL THRESHOLD VOLTAGE vs. SUPPLY VOLTAGE DUAL OR SINGLE SUPPLIES SUPPLY VOLTAGE (V) DG411 toc8 ton/toff (ns) TURN-ON/TURN-OFF TIMES vs. SUPPLY VOLTAGE (DUAL SUPPLIES) t ON t OFF SUPPLY VOLTAGE (, ) DG411 toc9 6

7 (T A = +25 C, unless otherwise noted.) ton/toff (ns) LOSS (db) TURN-ON/TURN-OFF TIMES vs. SUPPLY VOLTAGE (SINGLE SUPPLY) t ON t OFF = SUPPLY VOLTAGE () FREQUENCY RESPONSE = +15V, = -15V ON-RESPONSE OFF-ISOLATION FREQUENCY (MHz) CROSSTALK DG411 toc1 DG411 toc13 ton/toff (ns) THD (%) Typical Operating Characteristics (continued) TURN-ON/TURN-OFF TIMES vs. TEMPERATURE (DUAL SUPPLIES) DUAL SUPPLIES: ±15V t ON t OFF TEMPERATURE ( C) TOTAL HARMONIC DISTORTION vs. FREQUENCY ±15V DUAL SUPPLIES IN = OUT = 6Ω, V P-P = 5V k 1k 1k FREQUENCY (Hz) DG411 toc11 DG411 toc14 ton/toff (ns) ICOM () TURN-ON/TURN-OFF TIMES vs. TEMPERATURE (SINGLE SUPPLY) = +12V, = t ON TEMPERATURE ( C) FAULT CURRENT vs. FAULT VOLTAGE (DUAL SUPPLIES) DUAL SUPPLIES: = +15V, = -15V t OFF -15 FOR V COM < V SUPPLY, I COM = V COM /R L V COM (V) DG411 toc12 DG411 toc FAULT CURRENT vs. FAULT VOLTAGE (SINGLE SUPPLY) DG411 toc16 1 ICOM () FOR V < V COM < V SUPPLY, I COM = V COM /R L V COM (V) 7

8 (T A = +25 C, unless otherwise noted.) V NO_, V NC_ INPUT V COM_ OUTPUT INPUT OVERVOLTAGE vs. OUTPUT 2ms/div FAULT STEP RESPONSE (NEGATIVE INPUT) DG411 toc17 DG411 toc19 Typical Operating Characteristics (continued) +25V +15V -22V -15V V NO_, V NC_ INPUT V COM_ OUTPUT FAULT STEP RESPONSE (POSITIVE INPUT) 2ms/div FAULT RECOVERY TIME (POSITIVE INPUT) DG411 toc18 DG411 toc2 +25V +5V V NO_, V NC_ INPUT -5V -25V V NO_, V NC_ INPUT +25V +5V V COM_ OUTPUT -5V V COM_ OUTPUT +5V 2ms/div 1µs/div FAULT RECOVERY TIME (NEGATIVE INPUT) DG411 toc21 FAULT RESPONSE ( =, = -15V) DG411 toc22 V NO_, V NC_ INPUT -5V -25V V NO_, V NC_ INPUT +25V V COM_ OUTPUT -5V V COM_ OUTPUT -25V 1µs/div 2ms/div 8

9 PIN DG411F DG412F DG413F NAME 1, 16, 9, 8 1, 16, 9, 8 1, 16, 9, 8 IN1, IN2, IN3, IN4 Logic Control Digital Inputs 2, 15, 1, 7 2, 15, 1, 7 2, 15, 1, 7 COM1, COM2, COM3, COM4 FUNCTION Analog Switch Common Terminals 3, 14, 11, 6 NC1, NC2, NC3, NC4 Analog Switch Normally Closed Terminals 3, 14, 11, 6 NO1, NO2, NO3, NO4 Analog Switch Normally Open Terminals 3, 6 NO1, NO4 Analog Switch Normally Open Terminals 14, 11 NC2, NC3 Analog Switch Normally Closed Terminals Negative-Supply Voltage Input. Connect to for singlesupply operation. Bypass with a.1µf capacitor to Ground. Connect to digital ground N.C. No Connection. Not internally connected Pin Description Positive-Supply Voltage Input. Bypass with a.1µf capacitor to. Detailed Description The are fault-protected CMOS analog switches with unique operation and construction. These switches differ considerably from traditional fault-protection switches, with several advantages. First, they are constructed with two parallel FETs, allowing very low on-resistance when the switch is on. Second, they allow signals on the NO_ or NC_ pins that are within, or slightly beyond, the supply rails to be passed through the switch to the COM_ terminal (or vice versa), allowing true rail-to-rail signal operation. Third, the have the same fault-protection performance on any of the NO_, NC_, or COM_ switch inputs. Operation is identical for both fault polarities. The fault protection extends to ±36V from with ±15V supplies. During a fault condition, the particular overvoltage input (COM_, NO_, NC_) pin becomes high impedance regardless of the switch state or load resistance. When power is removed, the fault protection is still in effect. In this case, the COM_, NO_, or NC_ terminals are a virtual open circuit. The fault can be up to ±4V with power off. The switches turn off when is not powered, regardless of. Pin Compatibility These switches have identical pinouts to common nonfault-protected CMOS switches. They allow for carefree direct replacement in existing printed circuit boards since the NO_, NC_, and COM_ pins of each switch are fault protected. Internal Construction Internal construction is shown in Figure 1, with the analog signal paths shown in bold. A single NO switch is shown. The NC configuration is identical except the logic-level translator becomes an inverter. The analog switch is formed by the parallel combination of N-channel FET (N1) and P-channel FET (P1), which are driven on and off simultaneously according to the input fault condition and the logic-level state. Normal Operation Two comparators continuously compare the voltage on the COM_, NO_, and NC_ pins with and. When the signal on COM_, NO_, or NC_ is between and, the switch acts normally, with FETs N1 and P1 turning on and off in response to IN_ signals. The parallel combination of N1 and P1 forms a low-value resistor between NO_ (or NC_) and COM_ so that signals pass equally well in either direction. Positive Fault Condition When the signal on NO_ (or NC_) and COM_ exceeds by about 5mV, the high-fault comparator output is high, turning off FETs N1 and P1. This makes the NO_ (or NC_) and COM_ pins high impedance regardless of 9

10 the switch state. If the switch state is off, all FETs are turned off and both NO_ (or NC_) and COM_ are high impedance. Negative Fault Condition When the signal on NO_ (or NC_) and COM_ exceeds by about 5mV, the low-fault comparator output is high, turning off FETs N1 and P1. This makes the NO_ (or NC_) and COM_ pins high impedance regardless of the switch state. If the switch state is off, all FETs are turned off and both NO_ (or NC_) and COM_ are high impedance. Transient Fault Response and Recovery When a fast rise-time and fall-time transient on NO_, NC_, or COM_ exceeds or, the output follows the input to the supply rail with only a few nanoseconds delay. This delay is due to the switch on-resistance and circuit capacitance to ground. When the input transient returns to within the supply rails, however, there is a longer output recovery time delay. For positive faults, the recovery time is typically 1µs. For negative faults, the recovery time is typically.5µs. These values depend on the output resistance and capacitance, and are not production tested or guaranteed. The delays are not dependent on the fault amplitude. Higher load resistance and capacitance increase recovery times. Fault-Protection Voltage and Power Off The maximum fault voltage on the NO_ (or NC_) and COM_ pins is ±36V with power applied and ±4V with power off. Failure Modes Exceeding the fault-protection voltage limits on NO_, NC_, or COM_, even for very short periods, can cause the device to fail. See the Absolute Maximum Ratings. The failure modes may not be obvious, and failure in one switch may or may not affect other switches in the same package. and power the internal logic and logic-level translators and set the input logic thresholds. The logiclevel translators convert the logic levels to switched and signals to drive the gates of the analog switches. This drive signal is the only connection between the power supplies and the analog signals. IN_ Logic-Level Thresholds The logic-level thresholds are CMOS and TTL compatible when is +15V. As is raised, the threshold increases slightly, and when reaches 25V, the level threshold is about 2.3V, above the TTL output high-level minimum of 2.4V, but still compatible with CMOS outputs (see the Typical Operating Characteristics). has no effect on the logic-level thresholds. Bipolar Supplies The operate with bipolar supplies between ±4.5V and ±2V. The and supplies need not be symmetrical, but their difference cannot exceed the absolute maximum rating of 44V. Single Supply The operate from a single supply between +9V and +36V when is connected to. Ordering Information (continued) PART TEMP RANGE PIN-PACKAGE DG412FEUE -4 C to +85 C 16 TSSOP DG412FDY -4 C to +85 C 16 SO DG412FDJ -4 C to +85 C 16 Plastic DIP DG413FEUE -4 C to +85 C 16 TSSOP DG413FDY -4 C to +85 C 16 SO DG413FDJ -4 C to +85 C 16 Plastic DIP Ground There is no galvanic connection between the analog signal paths and. 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 to and by the logic-level translators. However, the potential of the analog signals must be defined or at least limited with respect to. TRANSISTOR COUNT: 251 PROCESS: CMOS SUBSTRATE CONNECTED TO: Chip Information 1

11 NO_ IN_ NORMALLY OPEN SWITCH CONSTRUCTION HIGH FAULT LOW FAULT ON Test Circuits/Timing Diagrams N1 P1 DG411F DG412F DG413F COM_ ESD DIODE Figure 1. Functional Diagram V IN_ NO_ OR NC_ DG411F DG412F DG413F COM_ R L 1V C L V OUT 3V V IN_ V 1V V OUT V 5% 9% 9% t OFF t ON IS CONNECTED TO (V) FOR SINGLE-SUPPLY OPERATION. Figure 2. Switch Turn-On/Turn-Off Times 11

12 V IN_ IN_ IN_ Figure 3. DG413F Break-Before-Make Interval NO_ NC_ DG413F COM_ COM_ R L 1V IS CONNECTED TO (V) FOR SINGLE-SUPPLY OPERATION. V IN_ IN_ NO_ OR NC_ DG411F DG412F DG413F COM_ Test Circuits/Timing Diagrams (continued) R GEN C L C L V OUT V OUT IS CONNECTED TO (V) FOR SINGLE-SUPPLY OPERATION. V IN_ V NO_, V NC_ V GEN V OUT 3V V V V IN_ V OUT 3V V 5% t BBM 9% t F < 5ns t R < 5ns V OUT V OUT IS THE MEASURED VOLTAGE DUE TO CHARGE- TRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF Q = V OUT x C L Figure 4. Charge Injection IN_ NO_ DG411F NC_ DG412F DG413F COM_ 1MHz CAPACITANCE ANALYZER IS CONNECTED TO (V) FOR SINGLE-SUPPLY OPERATION. Figure 5. COM_, NO_, NC_ Capacitance 12

13 1nF COM_ DG411F DG412F IN_ DG413F NO_, NC_ 1nF Figure 6. Frequency Response, Off-Isolation, and Crosstalk 3.V Test Circuits/Timing Diagrams (continued) 5Ω RESISTOR ONLY NEEDED FOR CROSSTALK AND ISOLATION V IN V OUT MEAS NETWORK ANALYZER 5Ω 5Ω MEASUREMENTS ARE STANDARDIZED AGAINST SHORT AND OPEN AT SOCKET TERMINALS. OFF-ISOLATION IS MEASURED BETWEEN COM_ AND "OFF" NO_ OR NC_ TERMINALS. ON-RESPONSE IS MEASURED BETWEEN COM_ AND "ON" NO_ OR NC_ TERMINALS. CROSSTALK IS MEASURED BETWEEN COM_ TERMINALS WITH ALL SWITCHES ON. IS CONNECTED TO (V) FOR SINGLE-SUPPLY OPERATION. 5Ω 5Ω REF 5Ω Pin Configurations (continued) TOP VIEW IN IN2 IN IN2 COM COM2 COM COM2 NO NO2 NO NC2 4 5 DG412F N.C. 4 5 DG413F N.C. NO NO3 NO NC3 COM4 7 1 COM3 COM4 7 1 COM3 IN4 8 9 IN3 IN4 8 9 IN3 DIP/TSSOP/SO DIP/TSSOP/SO DG412F LOGIC SWITCH OFF 1 ON N.C. = NOT CONNECTED. SWITCHES SHOWN FOR LOGIC INPUT. ALL SWITCHES ARE OFF WITH POWER REMOVED LOGIC 1 DG413F SWITCHES 1, 4 OFF ON SWITCHES 2, 3 ON OFF 13

14 Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to PDIPN.EPS 14

15 Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to TSSOP,NO PADS.EPS 15

16 Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to 16L SOIC.EPS 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. 16 Maxim Integrated Products, 12 San Gabriel Drive, Sunnyvale, CA Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

17 This datasheet has been download from: Datasheets for electronics components.

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