Patent ID: 7081797
Filing Date: 2006-07-25
Classification: G05F

Abstract:
1. A multiplying current mirror for mirroring an input current in an input branch with an output current in an output branch, said output current having a gain of n relative to the input current, where n is a whole number greater than one or the inversion of a whole number greater than one, comprising: a two-stage internal current mirror comprising a first stage connected to receive said input and output currents, and an additional stage connected in series with said first stage and including a multiplying transistor circuit which establishes said gain, and (n−1) base current compensation stages for n>1, and [(1/n)−1] base current compensation stages for n<1, said compensation stages connected in series with each other and with said first and additional stages, and compensating for base current errors associated with said internal current mirror.