Method and circuit for trimming an operational amplifier having

Details Method and circuit for trimming an operational amplifier having Method and circuit for trimming an operational amplifier having

1995-06-07

1997-03-11

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330255, H03F 345

Patent

active

056105576

ABSTRACT:
Circuitry is provided for a precision integrated circuit operational amplifier having a complementary pair of differential amplifiers in the input stage. Each differential amplifier is operable over a portion of the common-mode input range to provide a common-mode input range that includes both positive and negative power supply voltages. Methods are provided for trimming the operational amplifier to reduce the input offset voltage of each input stage differential amplifier which reduces the input offset voltage for the operational amplifier as a whole.

REFERENCES:
patent: 5323121 (1994-06-01), Butler
patent: 5418491 (1995-05-01), Bowers
A Precision Trim Technique for Monolithic Analog Circuits, George Erdi, IEEE Journal of Solid-State Circuits, vol. SC-10, Dec. 1975, pp. 412-416.
1-V Operation Amplifier with Rail-to Rail Input and Output Ranges, Jeroen Fonderie, et al., IEEE Journal of Solid-State Circuits, vol. 24, No. 6, Dec. 1989, pp. 1551-1559.
A Quad Low Voltage Rail-to-Rail Operational Amplifier, Robert Vyne et al., IEEE 1992 Bipolar Circuits and Technology Meeting 12.3, pp. 242-245.
NE/SA5230 Product Specification Sheet, Philips Semiconductor-Signetics Linear Products, Apr. 1992, pp. 68-79.

Affiliated with

Also associated with

Rating

Method and circuit for trimming an operational amplifier having does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and circuit for trimming an operational amplifier having , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and circuit for trimming an operational amplifier having will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-446413