Current mirror circuit

Details Current mirror circuit Current mirror circuit

1994-07-13

1995-10-24

Mottola, Steven

Amplifiers

With semiconductor amplifying device

Including current mirror amplifier

330293, H03F 134

Patent

active

054613434

ABSTRACT:
A current mirror circuit and method of generating an output current at an output node which is proportional to an input current applied to an input node. The circuit operates to receive the input current and develops a reference voltage. The reference voltage is converted to a reference current which is proportional to the input current and is applied to a high impedance node. A feedback network is coupled to said high impedance node and includes an output device driven by the high impedance node and which provides the output current to the output node. The feedback network is operable for forcing current generated by said feedback network to the high impedance node to be equal to the reference current.

REFERENCES:
patent: 4333120 (1982-06-01), Kotowski
patent: 4609880 (1986-09-01), Dermitzakis et al.
patent: 4873673 (1989-10-01), Hori et al.
patent: 5025204 (1991-06-01), Su
patent: 5089769 (1992-02-01), Petty et al.
patent: 5166702 (1992-11-01), Mattern et al.
patent: 5248932 (1993-09-01), Prentice
patent: 5283537 (1994-02-01), Nakamura
patent: 5285172 (1994-02-01), Okanobu et al.
patent: 5311146 (1994-05-01), Brannon et al.

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