Trimless bandgap reference voltage generator

Details Trimless bandgap reference voltage generator Trimless bandgap reference voltage generator

1983-11-17

1986-03-18

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307296R, 307493, 307494, 323316, G05F 500

Patent

active

045771197

ABSTRACT:
A voltage generator circuit consists essentially of two separate groups of serially connected semiconductor junctions with one group having one more junction than the other, two groups of constant current sources, and a differential operational amplifier. The circuit generates a reference voltage which in one embodiment is close to the bandgap voltage of silicon and is essentially constant over an operating temperature range of 25-85 degrees C. and does not require the trimming (adjusting) of resistor values. This circuit is particularly useful in CMOS CODECs. The circuit is designed such that the input offset voltage of an operational amplifier is not multiplied by the gain of the amplifier.

REFERENCES:
patent: 3825778 (1974-07-01), Ahmed
patent: 4176308 (1979-11-01), Dobkin et al.
patent: 4243898 (1981-01-01), Seelbach
patent: 4250445 (1981-02-01), Brokaw
patent: 4263519 (1981-04-01), Schade, Jr.
patent: 4302718 (1981-11-01), Schade, Jr.
patent: 4380706 (1983-04-01), Wrathall

Affiliated with

Also associated with

Rating

Trimless bandgap reference voltage generator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Trimless bandgap reference voltage generator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Trimless bandgap reference voltage generator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2308289