Current copiers with improved accuracy

Details Current copiers with improved accuracy Current copiers with improved accuracy

1995-09-05

1998-06-02

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 94, 341145, G11C 2702

Patent

active

057606161

ABSTRACT:
A current copier is disclosed having a reduced transconductance at the output to reduce the corresponding amount of deviation of the current sample. The disclosed current copier may be implemented on an integrated circuit and includes a residue circuit for receiving an input current at an input node during a first operating cycle, for generating an estimate current corresponding to the input current, and for generating a residue current from the input current and the estimate current; and a first current copier for storing the residue current during the first operating cycle, and for generating an output current from the stored residue current during a second operating cycle.

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