High accuracy, high impedance differential to single-ended curre

Details High accuracy, high impedance differential to single-ended curre High accuracy, high impedance differential to single-ended curre

1988-11-18

1989-11-07

Mottola, Steven

Amplifiers

With semiconductor amplifying device

Including current mirror amplifier

330116, 330257, H03F 304

Patent

active

048795232

ABSTRACT:
A correction circuit is provided to improve current accuracy by sensing the error current of a first variable current source and substracting it from the output of a second variable current source. It also increases output impedence by sensing incremental output current and cancelling its effect.

REFERENCES:
patent: 3281535 (1966-10-01), Reiffin
patent: 3815037 (1974-06-01), Wheatley, Jr.
patent: 4560948 (1985-12-01), Prentice et al.
patent: 4639684 (1987-01-01), Laude
patent: 4801892 (1989-01-01), Yamakoshi et al.

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