Sense amplifier circuit implemented by bipolar transistor and im

Details Sense amplifier circuit implemented by bipolar transistor and im Sense amplifier circuit implemented by bipolar transistor and im

1991-11-27

1993-09-14

LaRoche, Eugene R.

Static information storage and retrieval

Floating gate

Particular biasing

307530, G11C 1140

Patent

active

052455718

ABSTRACT:
A differential amplifier circuit includes a differential amplifier responsive to an input differential voltage signal and implemented by a parallel combination of first and second bipolar transistors associated with a first constant current source, a pair of interconnections coupled with the collector nodes of the first and second bipolar transistors, a current-to-voltage converter having a series combination of a resistor and a third bipolar transistor associated with the first bipolar transistor and a series combination of a resistor and a fourth bipolar transistor associated with the second bipolar transistor, and a standby current source coupled between the third and fourth bipolar transistors and a ground voltage line, and branch currents from the first and second bipolar transistors are inversely proportional to branch currents from the third and fourth bipolar transistors to the standby current source so that the third and fourth bipolar transistors drive the pair of interconnections at high speed without sacrifice of current consumption.

REFERENCES:
patent: 4430580 (1984-02-01), Lovelace
patent: 4434381 (1984-02-01), Stewart
patent: 4629911 (1986-12-01), Bebernes et al.
patent: 4853899 (1989-08-01), Kitsukwa et al.
patent: 4879681 (1989-11-01), Miwa et al.
patent: 4939693 (1990-07-01), Tran
1979 IEEE International Solid State Circuit Conference, Feb. 15, 1979, pp. 850-854.

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