Miscellaneous active electrical nonlinear devices – circuits – and – Gating – Utilizing three or more electrode solid-state device
Patent
1996-11-29
2000-07-04
Tran, Toan
Miscellaneous active electrical nonlinear devices, circuits, and
Gating
Utilizing three or more electrode solid-state device
327362, H03K 1760
Patent
active
060844612
ABSTRACT:
A charge sensitive amplifier with high common mode signal rejection includes an NPN bipolar junction transistor (BJT) and a P-channel metal oxide semiconductor field effect transistor (MOSFET) connected in a totem pole circuit configuration. The BJT base terminal receives a dc reference voltage, the MOSFET gate terminal receives the incoming data signal, the MOSFET drain terminal is grounded and the BJT collector terminal provides the output voltage signal and is biased by the power supply through a resistive circuit element. The MOSFET operates as a source follower amplifier with the transconductance of the BJT serving as the load at the source terminal, while the BJT operates as a common emitter amplifier with the transconductance of the MOSFET providing emitter degeneration. The signal gains of such source follower and common emitter amplifiers are substantially equal and of opposite polarities. Therefore, any common mode signal components due to common mode input signals present at the input terminals (i.e., the BJT base and MOSFET gate terminals) which would otherwise appear within the output signal are substantially cancelled, thereby resulting in a high degree of common mode signal rejection.
REFERENCES:
patent: 4216435 (1980-08-01), Ahmed
patent: 4220873 (1980-09-01), Giordano
patent: 4366522 (1982-12-01), Baker
patent: 4596958 (1986-06-01), Graeme et al.
patent: 4740722 (1988-04-01), Furuhata
patent: 4746814 (1988-05-01), Shigekane
patent: 5576646 (1996-11-01), Rezzi et al.
patent: 5689197 (1997-11-01), Sugawara
J Ramirez-Angulo, "Low-Voltage BICMOS and Vertical OTA", IEE Proceedings-G, vol. 139, No. 4, Aug. 1992, pps. 553-556.
Handbook edited by Richard C. Dorf entitled "The Electrical Engineering Handbook", published in 1993--pp. 1804-1805.
Article by J.C. Stanton and N. Kurtz, entitled "An Introduction to the MX Chip", published on Apr. 11, 1989, pp. 1-14.
Article by Paul R. Gray and Robert G. Meyer, entitled "Analysis and Design of Analog Integrated Circuits, Third Edition", published in 1993--John Wiley and Sons, Inc., p. 465.
Allen Max J.
Colbeth Richard E.
Mallinson Martin
Auyang Hunter L.
Dalla Valle Mark A.
Friedman Bradford L.
Tran Toan
Varian Medical Systems Inc.
LandOfFree
Charge sensitive amplifier with high common mode signal rejectio does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Charge sensitive amplifier with high common mode signal rejectio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Charge sensitive amplifier with high common mode signal rejectio will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1489960