Analog-to-digital converter

Details Analog-to-digital converter Analog-to-digital converter

1994-07-08

1996-01-30

Young, Brian K.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

H03M 142

Patent

active

054883709

ABSTRACT:
The A-D converter of the present invention is a sequential comparing A-D converter having a chopper stable comparator built therein and comprises: using on/off switches each in the form of an NMOS FET, a third on/off switch interposed between a first input terminal of a differential amplifier and a grounding terminal for opening or closing the connection between the terminals, a fourth on/off switch interposed between a second input terminal of the differential amplifier and the grounding terminal for opening or closing the connection between the terminals, a fifth on/off switch interposed between the first and second input terminals of the differential amplifier for opening or closing the connection between the terminals, and a NOR circuit for inputting a boosting signal .phi. from the front and the rear of an inverter, and a condenser whose one terminal is grounded and which outputs a driving pulse to the gates of the three third, fourth and fifth on/off switches.

REFERENCES:
patent: 4293848 (1981-10-01), Cheng et al.
patent: 4912423 (1990-03-01), Milkovic et al.

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