Amplifiers – With semiconductor amplifying device – Including differential amplifier
Patent
1997-06-12
1999-05-04
Mottola, Steven
Amplifiers
With semiconductor amplifying device
Including differential amplifier
330260, H03F 345
Patent
active
059007796
ABSTRACT:
A differential transimpedance amplifier with reduced input impedance and increased bandwidth having a pair of input contacts, a pair of summing transistors, a pair of feedback transistors, a pair of output resistors, a pair of feedback resistors, a first and a second node and a pair of output contacts. The input contacts each being connected to one or more sources of current that are to be summed and are connected to the pair of summing transistors. The pair of feedback transistors are connected to the pair of input contacts, the pair of feedback resistors and to the first node for differentially reducing the input impedance of the pair of summing transistors and to overcome voltage excursions at the pair of input contacts to increase the operational bandwidth of the transimpedance amplifier. The pair of output resistors are connected to the pair of summing transistors for converting the current sum for each input contact into a voltage level that is transmitted differentially by the pair of output contacts that are connected to the pair of summing transistors.
REFERENCES:
patent: 4232271 (1980-11-01), Dobkin et al.
patent: 4268798 (1981-05-01), Reichart
patent: 5627494 (1997-05-01), Somerville
Mottola Steven
VTC Inc.
LandOfFree
Differential transimpedance amplifier does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Differential transimpedance amplifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Differential transimpedance amplifier will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1872066