DIFFERENTIAL AMPLIFIERS WITH IMPROVED SLEW PERFORMANCE

摘要

Disclosed herein are differential amplifiers for improved slew performance. In some embodiments, a differential amplifier may receive positive and negative input signals at first and second transistor branches, respectively; provide a dynamic bias current to the first and second transistor branches, responsive to the positive and negative input signals; and provide positive and negative output signals at the second and first transistor branches, respectively.

主权项

1. A differential amplifier for improved slew performance, comprising:
parallel first and second transistor branches coupled between a first node and a second node; regulator circuitry to receive a reference voltage value at a regulator input and maintain the reference voltage value at a regulator output, wherein the regulator output is coupled to the first node; and a replica transistor branch coupled between the regulator input and the second node, wherein the replica transistor branch includes an arrangement of transistors that replicates an arrangement of transistors in the first transistor branch; wherein a current source is coupled to the regulator input to provide current to the regulator circuitry, the first and second transistor branches, and the replica transistor branch.