MAXIM MAX320/MAX321/MAX322 handbook
Contents
1. CHARGE INJECTION vs VOLTAGE AT COM PIN MAX320 06 5 4 3 2 1 012345 Voom V Dir sso siii iii eee MAKI Precision Dual Supply SPST Pin Description PIN NAME FUNCTION NO1 Normally Open Analog MAX320 MAX322 Switch Terminal NC1 Normally Closed Analog MAX321 Switch Terminal 2 6 COMI COM2 Analog Switch Common Terminals 3 7 IN2 IN1 Logic Inputs 4 V Negative Supply NO2 Normally Open Analog MAX320 Switch Terminal 5 NC2 Normally Closed Analog MAX321 MAX322 Switch Terminal 8 V Positive Supply Applications Information Logic Levels Calculate the logic thresholds typically as follows VIH V 1 5V and ViL V 2 5V Power supply consumption is minimized when IN1 and IN2 are driven with logic high levels equal to V and logic low levels well below the calculated ViL of V 2 5V IN1 and IN2 can be driven to V without damage Analog Signal Levels Analog signals that range over the entire supply voltage V to V can be switched with very little change in on resistance over the entire voltage range see Typical Operating Characteristics All switches are bidirec tional so NO NC and COM pins can be used as either inputs or outputs Power Supply Sequencing and Overvoltage Protection Do not exceed the absolute maximum ratings because stresses beyond the listed r2. sess 30mA MAX32C _ 0 C to 70 C Peak Current COM NO NC_ MAX32 E 40 C to 85 C pulsed at 1ms 10 duty cycle max 100mA MAX32 MAJA 55 C to 125 C ESD per Method 3015 7 sse gt 2000V Storage Temperature Range 65 C to 150 C Continuous Power Dissipation Lead Temperature soldering 10sec Plastic DIP derate 9 09mW C above 70 C 727mW Narrow SO derate 5 88mW C above 70 C 471mW Note 1 Signals on NC NO COM or IN exceeding V or V are clamped by internal diodes Limit forward diode current to maximum current rating 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 V 5V 10 V 5V 10 VINH 3 5V VINL 2 5V TA TMIN to TMAX unless otherwise noted MAX320 MAX321 MAX322 PARAMETER SYMBOL CONDITIONS MIN is MAX UNITS ANALOG SWITCH Vcom Analog Signal Range VNO Note 3 V V V VNC Vs 4 5V Tax C E 16 35 ees 25 M 16 30 On Resistance RON M A
3. 70 C 8 SO MAX391 MAX392 MAX393 data sheet MAK320CUA 0 C to 70 C 8 uMAX MAX320C D 0 C to 70 C Dice Applications MAX320EPA 40 C to 85 C 8 Plastic DIP Battery Operated Systems Sample and Hold Circuits MAXS20ESA 30 04 BorC 350 MAX320EJA 40 C to 85 C 8 CERDIP Heads Up Displays Guidance and Control Systems MAX320MJA 55 C to 125 C 8 GERDIP Audio and Video Switching Military Radios Ordering Information continued at end of data sheet Test Equipment Communications Systems Contact factory for dice specifications 5V DACs and ADCs PBX PABX Contact factory for availability Pin Configurations Functional Diagrams Truth Tables TOP VIEW MAXIM MAXIM MAXIM MAX320 DIP SO uMAX DIP SO uMAX DIP SO uMAX MAX320 MAX321 MAX322 LOGIC SWITCH SWITCH LOGIC SWITCH 1 SWITCH 2 0 OFF ON 0 OFF ON 1 ON OFF 1 ON OFF SWITCHES SHOWN FOR LOGIC 0 INPUT MMAKIM Maxim Integrated Products 1 Call toll free 1 800 998 8800 for free samples or literature CCEXVW LCEXVW AOCEXVIA Precision Dual Supply SPST Analog Switches ABSOLUTE MAXIMUM RATINGS Voltage Referenced to V HMAX derate 4 10mW C above 70 C 330mW Vibio repre eee V 0 3V to 17V CERDIP derate 8 00mW C above 70 C 640mW IN COM NC NO Note 1 0 3V to V 0 3V Operating Temperature Ranges Continuous Current any terminal
4. Ve V lt 8V V lt 0V Ve 25 DYNAMIC TA 25 C 65 150 Turn On Time t V 3V Figure 2 ns d ON SOM Ju TA TMIN to TMAX 175 Turn Off Time t V NONE Ele m 1995 1 eno urn i 3V Figu orm SOM g TA TMIN to TMAX 150 Break Before Make Time Delay Note 3 to MAX322 only RL 3002 CL 35pF Figure 3 2 5 ns Charge Injection CL 1 0nF VGEN OV 5 Note 3 Q Rag 02 Figure 4 pl 2 gt pe RL 500 CL 5pF AY Off Isolation Note 7 OIRR f 1MHz Figure 5 TA 25 C 72 dB RL 502 CL 5pF _ Crosstalk Note 8 f 1MHz Figure 6 TA 25 C 85 dB NC or NO Capacitance C oFF f 1MHz Figure 7 TA 25 C 9 pF COM Off Capacitance Ccom orr f 1MHz Figure 7 TA 25 C 9 pF COM On Capacitance Ccom on f 1MHz Figure 8 TA 25 C 22 pF SUPPLY Power Supply Range 2 8 V V 5 5V V 5 5V TA 25 C 125 80 125 Positive Supply Current l VIN OV or V HA all channels on or off TA TMIN to TMAX 200 200 Negative Supply k ya pus 5 5V TA 25 C 125 80 125 P Current P IN OV OF Vag H all channels on or off TA TMIN to TMAX 200 200 Note2 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 ARON ARON max ARON min Note 5 Flatness is defined as the difference between the maximum and minimum value of on resistance as measured over the specified analog sign
5. CAPACITANCE METER CAPACITANCE METER Figure 7 Channel Off Capacitance Figure 8 Channel On Capacitance MAXIM AAA AAA LL e e CCEXVW LCEXVW AOCEXVIA MAX320 MAX321 MAX322 Precision Dual Supply SPST Analog Switches Ordering Information continued PART TEMP RANGE PIN PACKAGE MAX321CPA 0 C to 70 C 8 Plastic DIP MAX321CSA 0 C to 70 C 8 SO MAX321CUA 0 C to 70 C 8 uMAX MAX321C D 0 C to 70 C Dice MAX321 EPA 40 C to 85 C 8 Plastic DIP MAX321ESA 40 C to 85 C 8 SO MAX321EJA 40 C to 85 C 8 CERDIP MAX321MJA 55 C to 125 C 8 CERDIP MAX322CPA 0 C to 70 C 8 Plastic DIP MAX322CSA 0 C to 70 C 8 SO MAX322CUA 0 C to 70 C 8 uMAX MAX322C D 0 C to 70 C Dice MAX322EPA 40 C to 85 C 8 Plastic DIP MAX322ESA 40 C to 85 C 8 SO MAX322EJA 40 C to 85 C 8 CERDIP MAX322MJA 55 C to 125 C 8 CERDIP Contact factory for dice specifications Contact factory for availability Chip Topography NO1 MAX320 2 NC1 MAX321 COMI IN2 0 055 1 40mm TRANSISTOR COUNT 91 SUBSTRATE CONNECTED TO V COM2 NO2 MAX320 NC2 MAX321 2 Package Information INCHES MILLIMETERS MIN MAX MAX
6. 2 r r o m oc O uo 8 PIN uMAX MICROMAX SMALL OUTLINE PACKAGE 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 Maxim Integrated Products 120 San Gabriel Drive Sunnyvale CA 94086 408 737 7600 8 1994 Maxim Integrated Products Printed USA MAXIM is a registered trademark of Maxim Integrated Products Ic 4
7. Q Vno or VNC 3 5V TA TMIN to TMAX 45 On Resistance Match Between Roy yas BE r hk TA 25 C as E Channels Note 4 VNo or VNc 3V TA Tin to TMAX 4 On Resistance Flatness R y 2 V t A i K Note 5 FLAT ON ICOM 1 0mA Q VNO or VNC 3V TA TMIN to TMAX 6 V 5 5V TA 25 C 0 1 0 01 0 1 NO or NC Off Leakage Current INO OFF V 5 5V nA Note 6 Sl VCOM 4 5V TA Tmn C E 5 5 VNO or VNC F4 5V to Tmax M 40 40 V 5 5V TA 25 C 0 1 0 01 0 1 COM Off Leakage Current ionica V 5 5V nA Note 6 OFP Voom 4 5V Ta Tmn C E 5 5 VNO or VNC F 4 5V to Tmax M 40 40 V 5 5V TA 25 C 0 2 0 05 0 2 COM On Leakage Current leonem V 5 5V nA Note 6 ON Voom 4 5V Ta Tm C E 10 10 VNO Or VNG 4 5V to Tmax M 50 50 MAXIM Precision Dual Supply SPST Analog Switches ELECTRICAL CHARACTERISTICS V 5V 10 V 5V 10 ViNH 3 5V VinL 2 5V TA Tmin to Tmax unless otherwise noted PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Note 2 LOGIC INPUT nput Current with Input i Voltage High lINH 0 5 0 005 0 5 HA nput Current with Input 2 Voltage Low IINL 0 5 0 005 0 5 HA t Volt High V V 5V 10 V lt OV 3 5 V n pure INH 3V lt V lt BV V lt 0V V 1 5 t Volt L Vi V 5V 10 V lt OV 2 5 V n pore de SOW INL
8. al range Note 6 Leakage parameters are 100 tested at maximum rated hot temperature and guaranteed by correlation at 25 C Note 7 Off Isolation 20 logio VCOM VNC or VNO VCOM output VNC or VNO input to off switch Note 8 Between any two switches AVLAZCLAWI CCEXVW LCEXVW AOCEXVIA MAX320 MAX321 MAX 322 ON LEAKAGE CURRENT nA o Precision Dual Supply SPST Analog Switches Typical Operating Characteristics V 5V V 5V TA 25 C unless otherwise noted ON RESISTANCE vs VOLTAGE AT COM PIN MAX320 01 Voom V ON LEAKAGE CURRENT vs TEMPERATURE o Q 2 0 0001 55 35 15 5 25 45 65 85 105 125 TEMPERATURE C 30 25 OFF LEAKAGE CURRENT nA o o 3 0 0001 140 120 IguPPLY HA ON RESISTANCE vs VOLTAGE AT COM PIN OVER TEMPERATURE V 5 5V V 5 5V VooM 4 5V Vnc or Vno F 4 5V A Ta 125 C B Ta 85 C C Ta 25 C D Ta 55 C MAX320 05 55 35 15 5 25 45 65 85 105 125 TEMPERATURE C SUPPLY CURRENT vs TEMPERATURE MAX320 07 55 35 15 5 25 45 65 85 105 125 TEMPERATURE C Q pO ON RESISTANCE MATCH vs VOLTAGE AT COM PIN OVER TEMPERATURE A Ta 55 C B Ta 25 C C Ta 85 C D Ta 125 C MAX320 03
9. atings may cause perma nent damage to the devices Proper power supply sequencing is recommended for all CMOS devices Always apply V followed by V before applying analog signals or logic inputs especial ly if the analog or logic signals are not current limited If AVLAZCLAW Analog Switches POSITIVE SUPPLY MAXIM MAX320 MAX321 MAX322 NEGATIVE SUPPLY Figure 1 Overvoltage Protection Using Two External Blocking Diodes this sequencing is not possible and if the analog or logic inputs are not current limited to lt 30mA add two small signal diodes D1 D2 as shown in Figure 1 Adding protection diodes reduces the analog signal range to a diode drop about 0 7V below V for D1 and a diode drop above V for D2 Leakage is not affected by adding the diodes On resistance increas es by a small amount at low supply voltages Maximum supply voltage V to V must not exceed 17V Adding protection diode D1 causes the logic thresh olds to be shifted relative to the positive power supply rail This can be significant when low positive supply voltages 5V or less are used Driving IN1 and IN2 all the way to the supply rails i e to a diode drop higher than the V pin or a diode drop lower than the V pin is always acceptable The protection diodes D1 and D2 also protect against some overvoltage situations With the circuit of Figure 1 if the supply voltage is below the absolute maximum rating and if a fa
10. ne MA A KIM Precision Dual Supply SPST Analog Switches General Description Features The MAX320 MAX321 MAX322 are precision dual SPST analog switches designed to operate from 3V to 8V dual supplies The MAX320 has two normally open NO switches and the MAX321 has two normally closed NC switches The MAX322 has one NO and one NC switch Low power consumption 1 25mW makes these parts ideal for battery powered equip ment They offer low leakage currents 100pA max and fast switching speeds ton 150ns max torr 100ns max Low Leakage Current Over Temperature The MAX320 series powered from 5V supplies offers 2 5nA at 85 C 352 max on resistance Ron 22 max matching Fast Switching toN 150ns torr 100ns Low On Resistance 352 max 162 typical Ron Matching Between Channels 20 Ron Flatness lt 49 Guaranteed Charge Injection lt 5pC Bipolar Supply Operation 3V to 8V Low Power Consumption 1 25mW gt 9 o 9 9 9 9 between channels and 40 max Ron flatness Guaranteed Break Before Make MAX322 only These switches also offer 5pC max charge injection and a minimum of 2000V ESD protection per Method Ordering Information 3015 7 cet For equivalent devices specified for single supply oper PART TEMP RANGE PIN PACKAGE ation see the MAX323 MAX324 MAX325 data sheet MAX320CPA 0 C to 70 C 8 Plastic DIP For quad versions of these switches see the MAX320CSA 0 C to
11. ult voltage up to the absolute maximum rating is applied to an analog signal pin no damage will result For example with 5V supplies analog sig nals up to 8 5V will not damage the circuit of Figure 1 If only a single fault signal is present the fault voltage can rise to 12V or to 12V without damage CCEXVW LCEXVW AOCEXVIA MAX320 MAX321 MAX 322 Precision Dual Supply SPST Analog Switches MAXIM MAX320 MAX321 MAX322 SWITCH y INPUT OM SWITCH OUTPUT o L CL LOGIC INPUT 5V CL INCLUDES FIXTURE AND STRAY CAPACITANCE Vout Vcom dal Figure 2 Switching Time MAXIM MAX322 SWITCH OUTPUT Vcom1 3V MAXIM MAX320 MAX321 MAX322 Figure 4 Charge Injection 6 Test Circuits Timing Diagrams tr lt 20ns tf lt 20ns LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES HAVE THE OPPOSITE LOGIC SENSE SWITCH OUTPUT 1 0 9 Vouri Vouti SWITCH OUTPUT 2 Vout2 ON ON OFF Q AVour CL IN DEPENDS ON SWITCH CONFIGURATION INPUT POLARITY DETERMINED BY SENSE OF SWITCH MAKIM Precision Dual Supply SPST Analog Switches Test Circuits Timing Diagrams continued MAXIM MAXIM MAX320 MAX320 MAX321 MAX321 SIGNAL SIGNAL GENERATOR 0dBm GENERATOR 0dBm Wor24v O ANALYZER Figure 5 Off Isolation Figure 6 Crosstalk MAXIM MAXIM MAX320 MAX320 MAX321 MAX321 MAX322 MAX322
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MAXIM MAX320/MAX321/MAX322 handbook