19-4611; Rev 2; 7/96 Improved, Quad, SPST Analog Switches Maxim’s redesigned DG441/DG442 analog switches now feature on-resistance matching (4Ω max) between switches and guaranteed on-resistance flatness over the signal range (9Ω 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 +85°C). 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. ________________________Applications Sample-and-Hold Circuits PBX, PABX Communication Systems Guidance and Control Systems Test Equipment Audio-Signal Routing Battery-Operated Systems Military Radios Heads-Up Displays Modems Fax Machines ______________________New Features ♦ ♦ ♦ ♦ ♦ Plug-In Upgrades for Industry-Standard DG441/DG442 Improved rDS(ON) Match Between Channels(4Ωmax) Guaranteed rFLAT(ON) Over Signal Range (9Ωmax) Improved Charge Injection (10pC max) Improved Off-Leakage Current Over Temperature (<5nA at +85°C) ♦ Withstand Electrostatic Discharge (2000V min) per Method 3015.7 __________________Existing Features ♦ Low rDS(ON) (85Ω 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 PART TEMP. RANGE PIN-PACKAGE DG441CJ 0°C to +70°C 16 Plastic DIP DG441CY DG441C/D DG441DJ 0°C to +70°C 0°C to +70°C -40°C to +85°C 16 Narrow SO Dice* 16 Plastic DIP DG441DY DG441DK DG441AK -40°C to +85°C -40°C to +85°C -55°C to +125°C 16 Narrow SO 16 CERDIP 16 CERDIP** Ordering Information continued on last page. *Contact factory for dice specifications. **Contact factory for availability and processing to MIL-STD-883B. _____________________Pin Configurations/Functional Diagrams/Truth Tables 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 13 V+ V- 4 GND 5 V- 4 GND 5 DG441 12 N.C. 13 V+ 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 9 DIP/SO DIP/SO DG441 LOGIC SWITCH 0 1 IN3 LOGIC ON OFF 0 1 SWITCHES SHOWN FOR LOGIC “0” INPUT DG442 SWITCH OFF ON N.C. = Not Internally Connected _______________________________________________________________________________________ 1 For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800 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 = +70°C) Plastic DIP (derate 10.53mW/°C above +70°C) ............842mW Narrow SO (derate 8.70mW/°C above +70°C) ..............696mW CERDIP (derate 10.00mW/°C above +70°C) .................800mW Operating Temperature Ranges DG441C/DG442C .................................................0°C to +70°C DG441D/DG442D ..............................................-40°C to +85°C DG441AK/DG442AK .......................................-65°C to +150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10sec) .............................+300°C 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 Drain-Source On-Resistance VANALOG rDS(ON) On-Resistance Match Between Channels (Note 4) ∆rDS(ON) On-Resistance Flatness (Note 4) rFLAT(ON) Source Off-Leakage Current (Note 5) Drain Off-Leakage Current (Note 5) Drain On-Leakage Current (Note 5) (Note 3) -15 V+ = 13.5V, V- = -13.5V, TA = +25°C IS = -10mA, TA = TMIN to TMAX VD = 8.5V or -8.5V 15 50 85 V Ω 100 V+ = 15V, V- = -15V, VD = ±10V, IS = -10mA TA = +25°C 4 TA = TMIN to TMAX 5 V+ = 15V, V- = -15V, VD = 5V or -5V, IS = -10mA TA = +25°C 9 TA = TMIN to TMAX 15 Ω -0.50 TA = +25°C V+ = 16.5V, V- = -16.5V, VD = 15.5V, C, D TA = TMAX VS = ±15.5V A -.0.50 TA = +25°C 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 Ω TA = +25°C V+ = 16.5V, V- = -16.5V, VD = 15.5V, C, D TA = TMAX VS = ±15.5V A ± Analog-Signal Range ± 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 = +25°C -1 TA = TMIN to TMAX -5 ±20.0 V 15 100 µA -0.0001 1 µA All channels on or off, V+ = 16.5V, V- = -16.5V, VIN = 0V or 5V -100 5 -15 µA DYNAMIC Turn-On Time tON Turn-Off Time tOFF Charge Injection (Note 3) Off-Isolation Rejection Ratio (Note 6) VS = ±10V, RL = 1kΩ, Figure 2 TA = +25°C 150 250 ns DG441, VD = ±10V, Figure 2 TA = +25°C 90 120 DG442, VD = ±10V, Figure 2 TA = +25°C 110 170 Q CL = 1nF, VGEN = 0V, RGEN = 0Ω, Figure 3 TA = +25°C 5 10 OIRR RL = 50Ω, CL = 5pF, f = 1MHz, Figure 4 TA = +25°C 60 dB RL = 50Ω, CL = 5pF, f = 1MHz, Figure 5 TA = +25°C -100 dB Crosstalk (Note 7) ns pC Source Off-Capacitance CS(OFF) f = 1MHz, Figure 6 TA = +25°C 4 pF Drain Off-Capacitance CD(OFF) f = 1MHz, Figure 6 TA = +25°C 4 pF Drain On-Capacitance CD(ON) f = 1MHz, Figure 6 TA = +25°C 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 = +25°C 12 100 TA = TMIN to TMAX 160 V Ω 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 = +25°C -1 TA = TMIN to TMAX -5 All channels on or off, VIN = 0V or 5V -100 30 V 15 100 µA -0.0001 1 5 -15 µA µA DYNAMIC Turn-On Time tON VS = 8V, Figure 2 TA = +25°C 300 400 ns Turn-Off Time tOFF VS = 8V, Figure 2 TA = +25°C 60 200 ns CL = 1nF, VGEN = 0V TA = +25°C 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 +25°C. 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 = +25°C, unless otherwise noted.) ON-LEAKAGE CURRENTS 2 V+ = 15V V- = -15V TA = +125°C TA = +85°C 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 = +125°C 4 2.0 TA = +85°C 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) (Ω) rDS(ON) (Ω) rDS(ON) (Ω) 175 0 5 10 15 ON-RESISTANCE vs. VD AND UNIPOLAR SUPPLY VOLTAGE AND TEMPERATURE 0 +10 +20 TA = +25°C -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 = -55°C 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) (Ω) 100 TA = -55°C VD (V) TA = +125°C 125 TA = +25°C 0 -10 VD (V) 150 60 20 ±20V -20 20 TA = +125°C 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 = +25°C, unless otherwise noted.) DG441/DG442 Improved, Quad, SPST Analog Switches _____________________Pin Description PIN NAME FUNCTION 1, 16, 9, 8 IN1–IN4 Input 2, 15, 10, 7 D1–D4 Drain Output 3, 14, 11, 6 S1–S4 Source Output 4 V- 5 GND Ground 12 N.C. Not Internally Connected 13 V+ 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. Positive Supply Voltage Input. Connected to substrate. 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 GND LOGIC INPUT +3V 35pF V- -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 × CL Figure 3. Charge Injection 10nF 10nF +15V +15V DG441 DG442 DG441 DG442 SIGNAL GENERATOR 10dBm SIGNAL GENERATOR V+ D RGEN = 50Ω 10dBm 50Ω S RGEN = 50Ω 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) ___________________Chip Topography D1 10nF IN1 IN2 D2 +15V S2 S1 +V D VIN CAPACITANCE METER 0.091" (2.31mm) N.C. V+ 0.8V or 2.4V GND S f = 1MHz GND V- 10nF S4 S3 -15V D4 IN4 IN3 D3 0.071" (1.80mm) Figure 6. Source/Drain-On/Off Capacitance _Ordering Information (continued) PART TEMP. RANGE PIN-PACKAGE DG442CJ 0°C to +70°C 16 Plastic DIP DG442CY DG442C/D DG442DJ 0°C to +70°C 0°C to +70°C -40°C to +85°C 16 Narrow SO Dice* 16 Plastic DIP DG442DY DG442DK DG442AK -40°C to +85°C -40°C to +85°C -55°C to +125°C 16 Narrow SO 16 CERDIP 16 CERDIP** TRANSISTOR COUNT: 126 SUBSTRATE CONNECTED TO V+ *Contact factory for dice specifications. **Contact factory for availability and processing to MIL-STD-883B. 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 © 1996 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.