Amplifiers – With semiconductor amplifying device – Including atomic particle or radiant energy impinging on a...
Patent
1996-06-14
1998-02-03
Mottola, Steven
Amplifiers
With semiconductor amplifying device
Including atomic particle or radiant energy impinging on a...
250214A, H03F 308
Patent
active
057149097
ABSTRACT:
A transimpedance amplifier (10, 50) is provided for processing a current signal received from a circuit device (12, 52). The circuit device (12, 52) can be a photodiode used to receive infrared transmissions. The transimpedance amplifier (10, 50) includes a first stage (14, 54) coupled to an input node. The first stage (14, 54) has a first amplifier (20, 60) operable to drive the input node and is operable to provide a current signal to a second node (NODE 3, NODE 2) in response to a current signal in the input node. A second stage (16, 56) is connected to the second node (NODE 3, NODE 2). The second stage (16, 56) has a second amplifier (32, 68) and is operable to convert the current signal in the second node (NODE 3, NODE 2) into an output voltage signal (V.sub.OUT) at an output node. A feedback loop (18, 58) can be connected to receive the output voltage signal (V.sub.OUT) and to provide a feedback current signal to cancel ambient noise in the current signal in the input node.
REFERENCES:
patent: 4498001 (1985-02-01), Smoot
patent: 4623786 (1986-11-01), Rodwell
patent: 5606282 (1997-02-01), Yoshida
"Photodiode-AMP Nulls Ambient Light" by R. Mark Stitt and Wally Meinel, Burr-Brown Corp., Tucson, AZ, Dec. 16, 1993.
"Threshold Detection of Visible and Infrared Radiaton with PIN Photodiodes" by Hewlett packard, Application Note 915.
"UV-Visible and Near IR Silicon Photodectors" (adapted from Sensors, vol. 6, Optical Sensors, Chapt. 8, VCH-Veriag, Weinheim 1991.
"Characteristics and use of Photodiodes".
"An Instantaneous Response CMOS Optical Receiver IC with Wide Dynamic Range and Extremely High Sensitivity Using Feed-Forward Auto-Bias Adjustment", Makoto Nakamura, Noboru Ishihara, Yukio Akazawa, and Hideaki Kimura, 1995.
"Infrared Light-Emitting Diode Application Circuits", Sharp Opto Application Note, Optoelectronics.
Mottola Steven
Sigmatel, Inc.
LandOfFree
Transimpedance amplifier and method for constructing same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transimpedance amplifier and method for constructing same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transimpedance amplifier and method for constructing same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-666330