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ADG5243F

Analog Devices
Part Number ADG5243F
Manufacturer Analog Devices
Description Triple SPDT
Published May 23, 2016
Detailed Description Data Sheet User Defined Fault Protection and Detection, 0.8 pC QINJ, Triple SPDT ADG5243F FEATURES User defined suppli...
Datasheet PDF File ADG5243F PDF File

ADG5243F
ADG5243F

Overview
Data Sheet User Defined Fault Protection and Detection, 0.
8 pC QINJ, Triple SPDT ADG5243F FEATURES User defined supplies set overvoltage level Overvoltage protection up to −55 V and +55 V Power-off protection up to −55 V and +55 V Overvoltage detection on source pins Minimum secondary supply level: 4.
5 V single-supply Interrupt flags indicate fault status Low charge injection (QINJ): 0.
8 pC Low drain/source on capacitance: 10 pF Latch-up immune under any circumstance Known state without digital inputs present VSS to VDD analog signal range ±5 V to ±22 V dual supply operation 8 V to 44 V single-supply operation Fully specified at ±15 V, ±20 V, +12 V, and +36 V APPLICATIONS Analog input/output modules Process control/distributed control systems Data acquisition Instrumentation Avionics Automatic test equipment Communication systems Relay replacement GENERAL DESCRIPTION The ADG5243F comprises three independently selectable, singlepole/double-throw (SPDT) switches.
All channels exhibit breakbefore-make switching action that prevents momentary shorting when switching channels.
An EN input enables or disables the device.
When disabled, all channels are switched off.
Each switch conducts equally well in both directions when on, and each switch has an input signal range that extends to the supplies.
The primary supply voltages define the on-resistance profile, whereas the secondary supply voltages define the voltage level at which the overvoltage protection engages.
When no power supplies are present, the channel remains in the off condition, and the switch inputs are high impedance.
Under normal operating conditions, if the analog input signal levels on any Sx pin exceed the positive fault voltage (POSFV) or the negative fault voltage (NEGFV) by a threshold voltage (VT), the channel turns off and that Sx pin becomes high impedance.
If the switch is selected to be on, then the drain pin is pulled to the secondary supply voltage that was exceeded.
Input signal levels up t...


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