Amplification circuit using wire-bonding for adjusting amplifica

Details Amplification circuit using wire-bonding for adjusting amplifica Amplification circuit using wire-bonding for adjusting amplifica

1996-12-06

1998-08-18

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Integrated circuits

327516, 330282, 330284, H03G 318

Patent

active

057963100

ABSTRACT:
An amplification circuit comprises an operational amplifier, an input resistance unit and a feedback resistance unit. The input resistance unit consists of a plurality of input resistances connected in series, and the feedback resistance unit consists of a plurality of feedback resistances connected in series. A plurality of adjusting pads are provided at respective connecting points of these input and feedback resistances. There is a common pad having an electrical potential fixed at a reference voltage. A first wire selectively bonds one of adjusting pads corresponding to the input resistances with the common pad to set a resistance value of the input resistance unit. And, a second wire selectively bonds one of adjusting pads corresponding to the feedback resistances with the common pad to set a resistance value of the feedback resistance unit.

REFERENCES:
patent: 4641108 (1987-02-01), Gill, Jr.
Design for Operational Amplifier, pp. 383-392 see English abstract.

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