Pre-amplifier for a receiver and a method therefor

摘要

A pre-amplifier for a receiver including first and second input operational amplifiers; an output module; and first and second feedforward circuits are provided. The input operational amplifiers amplify an input differential voltage pair to output a first and a second differential voltage pairs. The output module includes first and second output operational amplifiers and an inverter. The output operational amplifiers amplify the differential voltage pairs to output first and second output amplified voltages. The inverter pulls an output voltage high or low based on output amplified voltages. The first and second feedforward circuits are respectively for pulling up the first differential voltage pair or pulling down the second differential voltage pair, such that the first and the second output operational amplifiers are not disabled.