It’s rare in 2023 for an instrument to be entirely analog, instead it’s more normal for a front-end to feed the analog-to-digital converter (ADC) in a microcontroller. Typically the fro… ...

Benefits of using an indirect current-mode instrumentation amplifier for large differential offsets. Design specs for a low-power application. Key design considerations when implementing an in-amp ...

We were doing just that in the 1980s using a small DC current source and a device using op amps, called a current path indicator, or CPI. It was capable of measuring the voltages dropped across ...