Input stage for flash A/D converter

Details Input stage for flash A/D converter Input stage for flash A/D converter

1989-05-05

1990-07-10

Shoop, Jr., William M.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

341118, H03M 136, H03M 106

Patent

active

049409808

ABSTRACT:
A flash converter in which an input circuit is provided for maintaining a substantially constant collector-base voltage on the input emitter-followers, so as to obviate the distortion caused by variation of the input capacitance with input voltage. The driving source directly drives the base of the emitter-followers and, through a level-shift circuit, also drives the collectors of the emitter-follower transistors.

REFERENCES:
patent: 4752766 (1988-06-01), Shimizu et al.
patent: 4851845 (1989-07-01), Hotta et al.
patent: 4885548 (1989-12-01), Wakimoto et al.

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