Which op-amp circuitW ould be useful to switch to an ʺonʺ condition at a specified voltage?
A)instrumentation amp
B)isolation amplifier
C)operational transconductance amplifier configured as a Schmitt-trigger
D)voltage-to-current converter

Question

Quizplus · Accepted Answer

An operational transconductance amplifier (OTA) configured as a Schmitt-trigger is a type of comparator that converts an analog signal into a digital signal. It has hysteresis, meaning the output switches at two different voltage levels. This makes it useful for switching to an "on" condition at a specified voltage, as the voltage levels can be adjusted to suit the desired threshold. An instrumentation amplifier, isolation amplifier, and voltage-to-current converter do not have the necessary features for this application.

Which Op-Amp CircuitW Ould Be Useful to Switch to an ʺOnʺ