). This terminal allows the user to electronically adjust the amplifier's transconductance ( ), effectively providing a way to program the gain.
R.M. Marston's Op-Amp Circuits Manual highlights several specialized roles for the OTA that are difficult to achieve with standard op-amps: : By varying the IABCcap I sub cap A cap B cap C end-sub Op–Amp Circuits Manual. Including OTA Circuits
: A standard op-amp (e.g., 741) provides a voltage output with low output impedance, while an OTA (e.g., CA3080) provides a current output with high output impedance . while an OTA (e.g.
: OTAs feature an additional terminal for amplifier bias current ( IABCcap I sub cap A cap B cap C end-sub Op–Amp Circuits Manual. Including OTA Circuits
: Because the output can be "turned off" by setting IABCcap I sub cap A cap B cap C end-sub