Analog Signal Range Resistance rDS(on): Fast Switching Action tON: Ult

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Analog Signal Range Resistance rDS(on): Fast Switching Action tON: Ult

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Precision CMOS Analog Switches
Analog Signal Range Resistance rDS(on): Fast Switching Action tON: Ultra Power Requirements CMOS Compatible MiniDIP SOIC Packaging Supply Rating
DG417/418/419
Benefits
Wide Dynamic Range Signal Errors Distortion Break Before Make Switching Action Simple Interfacing Reduced Board Space Improved Reliability
Applications
Precision Test Equipment Precision Instrumentation Battery Powered Systems Sample Hold Circuits Military Radios Guidance Control Systems Hard Disk Drives
Description
DG417/418/419 monolithic CMOS analog switches were designed provide high performance switching analog signals. Combining power, leakages, high speed, resistance small physical size, DG417 series ideally suited portable battery powered industrial military applications requiring high performance efficient board space. achieve high voltage ratings superior switching performance, DG417 series built Siliconix's high voltage silicon gate (HVSG) process. Break before make guaranteed DG419, which SPDT configuration. epitaxial layer prevents latchup. Each switch conducts equally well both directions when blocks power supply level when off. DG417 DG418 respond opposite control logic levels shown Truth Table.
Functional Block Diagram Configuration
DG417
Dual Line SOIC View
DG419
Dual Line SOIC View
Truth Table Logic
DG417/418 DG418
Truth Table Logic
DG419
DG417
Logic Logic Switch Shown DG417 Logic Input
Logic Logic Switches Shown DG419 Logic Input
Ordering Information Temp Range Package
Plastic MiniDIP 85_C
DG417/418 Part Number
DG417DJ DG418DJ DG417DY DG418DY
Ordering Information Temp Range
85_C 125_C
DG419 Part Number
Package
Plastic MiniDIP Narrow SOIC CerDIP
DG419DJ DG419DY DG419AK, DG419AK/883
Narrow SOIC
125_C
CerDIP
DG417AK, DG417AK/883 DG418AK, DG418AK/883
32167
Rev. (11/15/93)
DG417/418/419
Absolute Maximum Ratings
Voltages Referenced (GND -0.3 (V+) Digital Inputsa (V-) (V+) whichever occurs first Current, (Any Terminal) Continuous Current Pulsed duty cycle Storage Temperature Suffix) 150_C (DJ, Suffix) 125_C
Power Dissipation (Package)b Plastic MiniDIPc Narrow SOICd CerDIPe Notes: Signals exceeding will clamped internal diodes. Limit forward diode current maximum current ratings. leads welded soldered Board. Derate mW/_C above 75_C Derate mW/_C above 25_C Derate mW/_C above 75_C
Specificationsa
Test Conditions Unless Otherwise Specified Parameter Analog Switch
Analog Signal Rangee Drain Source Resistance VANALOG rDS(on) IS(off) Switch Leakage Current -16.5 16.5 #15.5 "15.5 DG417 DG418 DG419 16.5 -16.5 ±15.5 DG417 DG418 DG419 ±12.5 13.5 -13.5 Full Room Full Room Full Room Full Room Full Room Full Room Full -0.1 -0.1 -0.1 -0.4 -0.4 -0.25 -0.25 -0.75 -0.4 -0.75 0.25 0.25 0.75 0.75 -0.25 -0.25 -0.75 -0.4 -0.75 0.25 0.25 0.75 0.75 125_C
Suffix
85_C
Suffix
Symbol
Tempb
Typc
Mind Maxd
Mind Maxd Unit
ID(off)
Channel Leakage Current
ID(on)
Digital Control
Input Current Input Current High Full Full 0.005 0.005 -0.5 -0.5 -0.5 -0.5
Dynamic Characteristics
Turn Time Turn Time Transition Time Break Before Make Time Delay Charge Injection Source Capacitance Drain Capacitance tOFF tTRANS CS(off) CD(off) MHz, DG417 DG418 DG417 DG418 Switching Time Test Circuit DG417 DG418 DG419 DG419 Room Full Room Full Room Full Room Room Room Room 32167 Rev. (11/15/93)
Vgen Rgen
DG417/418/419
Test Conditions Unless Otherwise Specified
125_C
Specificationsa
Suffix
85_C
Suffix
Parameter
Symbol
Tempb
Typc
Mind Maxd
Mind Maxd Unit
Dynamic Characteristi (Cont'd)
Channel Capacitance CD(on) MHz, DG417 DG418 DG419 Room Room
Power Supplies
Positive Supply Current Negative Supply Current Logic Supply Current Ground Current IGND 16.5 -16.5 Room Full Room Full Room Full Room Full 0.001 -0.001 0.001 -0.000
Specificationsa Unipolar Supplies
Test Conditions Unless Otherwise Specified Parameter Analog Switch
Analog Signal Rangee Drain Source Resistance VANALOG rDS(on) 10.8 Full Room 125_C
Suffix
85_C
Suffix
Symbol
Tempb
Typc
Mind Maxd Mind Maxd Unit
Dynamic Characteristics
Turn Time Turn Time Break Before Make Time Delay Charge Injection tOFF Switching Time Test Circuit DG419 Room Room Room Room
Vgen Rgen
Power Supplies
Positive Supply Current Negative Supply Current Logic Supply Current Ground Current IGND 13.2 5.25 Room Room Room Room 0.001 -0.001 0.001 -0.001
Notes: Refer PROCESS OPTION FLOWCHART (Section 1994 Data Book FaxBack number 7103). Room 25_C, Full determined operating temperature suffix. Typical values DESIGN ONLY, guaranteed subject production testing. algebraic convention whereby most negative value minimum most positive maximum, used this data sheet. Guaranteed design, subject production test. input voltage perform proper function. 32167 Rev. (11/15/93)
DG417/418/419
Typical Characteristics
rDS(on) Supply Voltage
rDS(on) Temperature
125_C
Drain Voltage
rDS(on)
rDS(on)
25_C -55_C
Drain Voltage
(pA)
Leakage Currents Analog Voltage
DG417/418: ID(off), IS(off) DG419: IS(off) (pC)
Drain Charge Injection
16.5 -16.5
DG417/418: ID(on) DG419: ID(off), ID(on)
Drain Source Voltage Source Voltage
Input Switching Threshold Supply Voltages
Operating Voltage Range
(V+) (V-)
CMOS Compatible Compatible 32167
CMOS
Negative Supply
Rev. (11/15/93)
DG417/418/419
Switching Time Temperature
Pulse (dB) tOFF Temperature (_C) Frequency (Hz) DG419 Source
Typical Characteristics (Cont'd)
Crosstalk Isolation Frequency
DG417/418/419 Source
tOFF (ns)
Switching Time Supply Voltages
Switching Time
tOFF (ns)
tOFF (ns)
tOFF
tOFF
Supply Voltage
Supply Voltage
Power Supply Currents Switching Frequency
Cycle
Supply Current Temperature
16.5 -16.5
ISUPPLY
SUPPLY
IGND
Frequency (Hz)
Temperature (_C)
32167
Rev. (11/15/93)
DG417/418/419
Schematic Diagram (Typical Channel)
Level Shift/ Drive
Figure
Test Circuits
steady state output with switch
Logic Input Switch Input tOFF
(includes fixture stray capacitance) rDS(on)
Switch Output
Note: Logic input waveform inverted switches that have opposite logic sense.
Figure Switching Time (DG417/418)
Logic Input
Switch Output
(includes fixture stray capacitance)
Figure Break Before Make(DG419)
32167
Rev. (11/15/93)
DG417/418/419
Switch Output Logic Input tTRANS tTRANS
Test Circuits (Cont'd)
(includes fixture stray capacitance) rDS(on)
Figure Transition Time (DG419)
Figure Charge Injection
V-15
Isolation
XTALK Isolation bypass
Figure Crosstalk (DG419)
Figure Isolation
32167
Rev. (11/15/93)
DG417/418/419
Test Circuits (Cont'd)
Figure Insertion Loss
Meter HP4192A Impedance Analyzer Equivalent
DG417/418
Meter HP4192A Impedance Analyzer Equivalent
DG419
Figure Source/Drain Capacitances
Applications
Switched Signal Powers Analog Switch
analog switch Figure derives power from input signal, provided input signal amplitude exceeds frequency exceeds kHz. This circuit useful when signals have routed either remote loads. Only three conductors required: signal switched, control signal common return. positive input pulse turns clamping diode charges charge stored used power chip; operation satisfactory because switch requires less than stand supply current. Loading signal source imperceptible. DG419's resistance input signal.
Input 0.01
VOUT
Control
DG419
Figure Switched Signal Powers Remote SPDT Analog Switch
32167 Rev. (11/15/93)
DG417/418/419
change state analog switch, restoring normal operation.
Applications (Cont'd)
Micropower Transfer Switch
When drops DG417 changes states, closing connecting backup cell, shown Figure prevents current from leaking back towards rest circuit. Current consumption CMOS analog switch around this ensures that most power available applied memory, where really needed. stand mode, hundreds sufficient retain memory data. When supply comes back resistor divider senses presence least causes
Programmable Gain Amplifier
DG419, shown Figure allows accurate gain selection small package. Switching into virtual ground reduces distortion caused rDS(on) variation function analog signal amplitude.
GaAs Driver
DG419, shown Figure used GaAs driver. translates control signal into level outputs drive gate.
VSENSE
Memory
Cell
DG417
Figure Micropower Circuit
DG419
VOUT VOUT GaAs
DG419
Figure Programmable Gain Amplifier
32167 Rev. (11/15/93)
Figure GaAs Driver

Analog Signal Range Resistance rDS(on): Fast Switching Action tON: Ult

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