Rapid-response differential amplifier with rail-to-rail input ca

Details Rapid-response differential amplifier with rail-to-rail input ca Rapid-response differential amplifier with rail-to-rail input ca

1989-09-08

1990-12-11

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330252, H03F 345

Patent

active

049773780

ABSTRACT:
A differential amplifier contains first and second differential portions (20 and 22) that operate together to achieve rail-to-rail input amplification capability. A main current supply (6) provides a main supply conduit (I.sub.L) for the two differential portions. The circuit transconductance is controlled in a desired manner with a control amplifier (AN) suitably coupled to the differential portions and main current supply. A current-steering circuit typically formed with a pair of voltage clamps (30 and 32) enables a pair of level-shift current supplies (16 and 18) in the second differential portion to remain conductive as the input common-mode voltage traverses the entire supply voltage range. Consequently, the differential amplifier achieves a very fast response to changes in the input voltage difference irrespective of the value of the input commond-mode voltage.

REFERENCES:
patent: 4555673 (1985-11-01), Huijsing et al.
patent: 4864248 (1989-09-01), Jansen

Affiliated with

Also associated with

Rating

Rapid-response differential amplifier with rail-to-rail input ca does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rapid-response differential amplifier with rail-to-rail input ca, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rapid-response differential amplifier with rail-to-rail input ca will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-392026