Programmable low noise amplifier and method

Details Programmable low noise amplifier and method Programmable low noise amplifier and method

2006-12-19

2006-12-19

Nguyen, Patricia (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S278000, C330S288000, C330S051000

Reexamination Certificate

active

07151409

ABSTRACT:
A programmable gain low noise amplifier includes a tail current transistor (Q3) having a source coupled to a first reference voltage (VDD) and a drain coupled to a tail current conductor (18) and, in a differential input embodiment, a plurality of pairs (Q4,5, Q7,8,Q10,11, Q13,14) of differentially coupled input transistors. Each pair includes a first input transistor having a gate coupled to a first input conductor (19A) and a drain coupled to a first output conductor (26A) and a second input transistor having a gate coupled to a second input conductor (19B), a source coupled to a source of the first transistor, and a drain coupled to a second output conductor (26B). The sources of the first and second input transistors of some or all of the pairs are selectively coupled to the tail current conductor (18) in it response to corresponding gain control signals (B1,2,3).

REFERENCES:
patent: 6049252 (2000-04-01), Iwata
patent: 6069866 (2000-05-01), Pietruszynski et al.
patent: 6118340 (2000-09-01), Koen
patent: 6201443 (2001-03-01), Tanji
patent: 6229375 (2001-05-01), Koen
patent: 6278325 (2001-08-01), Juang
patent: 6888406 (2005-05-01), Ashby et al.

Affiliated with

Also associated with

Rating

Programmable low noise amplifier and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Programmable low noise amplifier and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Programmable low noise amplifier and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3684554