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Transcript
Current Feedback op amps enable operation at higher speeds. Traditionally they have wider bandwidths and higher slew rates than voltage feedback amplifiers and do not feature a Gain Bandwidth restriction associated with Voltage Feedback op amps. An amplifier with the inverting voltage feedback is illustrated below: Here, the output voltage drives a feedback resistor R2, which is connected to the inverting input, and the voltage gain is independent on the error. Instead of acting like a voltage amplifier, an amplifier with an inverting voltage feedback acts like an ideal current-to-voltage converter, a device with a constant ratio of output voltage to the input current.
