Operational amplifier circuit having digitally controllable...

Details Operational amplifier circuit having digitally controllable... Operational amplifier circuit having digitally controllable...

2005-06-06

2009-12-15

Pascal, Robert (Department: 2817)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C327S108000

Reexamination Certificate

active

07633482

ABSTRACT:
An operational amplifier circuit includes a control stage and an output stage. The control stage includes an analog control stage for generating a first control signal according to an input signal and a digital control stage for generating a second control signal according to the input signal. The output stage includes a sourcing circuitry coupled to the analog control stage and a load for sourcing a first current to the load according to the first control signal, and a sinking circuitry coupled to the digital control stage and the load for sinking a second current from the load according to the second control signal.

REFERENCES:
patent: 6710617 (2004-03-01), Humphrey
patent: 7075342 (2006-07-01), Nishimura

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