Constant capacitance prgrammable transconductance input stage

Details Constant capacitance prgrammable transconductance input stage Constant capacitance prgrammable transconductance input stage

1995-05-31

1996-06-18

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Converting input voltage to output current or vice versa

327560, G06G 712

Patent

active

055281796

ABSTRACT:
A constant capacitance programmable transconductance input stage (36) includes a first transconductance device (50), second transconductance device (52), and first switch (44) for providing a programmable input stage with a constant input capacitance. The first transconductance device (50) has two inputs and the second transconductance device (52) has two inputs. A first positive input (22) couples directly to one input of the first transconductance device (50) while a first negative input (23) couples directly to one input of the second transconductance device (52). The first positive input (22) and the first negative input (23) are switchably coupled to the remaining inputs of first transconductance device (50) and second transconductance device (52). Depending on the configuration of the first switch (44), either both transconductance devices contribute to the overall transconductance of constant capacitance programmable transconductance input stage (36) or neither does. In either event, the input capacitance remains constant.

REFERENCES:
patent: 4897836 (1990-01-01), Fitzpatrick et al.
patent: 5093634 (1992-03-01), Khoury
patent: 5311088 (1994-05-01), Nelson
patent: 5463349 (1995-10-01), Petersen et al.

Affiliated with

Also associated with

Rating

Constant capacitance prgrammable transconductance input stage does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Constant capacitance prgrammable transconductance input stage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constant capacitance prgrammable transconductance input stage will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-225535