Design Description

This design uses discrete op amps to implement an instrumentation amplifier (IA) design using space-grade (SP) components for use in space applications. The circuit converts a differential signal to a single-ended output signal. Linear operation of an instrumentation amplifier depends upon linear operation of its building block: op amps. An op amp operates linearly when the input and output signals are within the respective input common-mode and output swing ranges of the device. The supply voltages used to power the op amps define these ranges.