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1. US20140184319 - Shaper design in CMOS for high dynamic range

Office United States of America
Application Number 14115308
Application Date 04.04.2012
Publication Number 20140184319
Publication Date 03.07.2014
Grant Number 09071219
Grant Date 30.06.2015
Publication Kind B2
IPC
H03K 5/00
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
5Manipulation of pulses not covered by one of the other main groups of this subclass
H03H 1/00
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
1Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
H03F 1/34
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
1Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
34Negative-feedback-circuit arrangements with or without positive feedback
H03F 3/21
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
3Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
20Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
21with semiconductor devices only
H03F 3/70
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
3Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
70Charge amplifiers
H03H 11/12
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
11Networks using active elements
02Multiple-port networks
04Frequency selective two-port networks
12using amplifiers with feedback
CPC
H03H 1/0007
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
1Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
0007of radio frequency interference filters
H03F 1/34
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
1Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
34Negative-feedback-circuit arrangements with or without positive feedback
H03F 3/211
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
3Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
20Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
21with semiconductor devices only
211using a combination of several amplifiers
H03F 3/70
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
3Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
70Charge amplifiers
H03F 2200/144
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
2200Indexing scheme relating to amplifiers
144the feedback circuit of the amplifier stage comprising a passive resistor and passive capacitor
H03F 2200/408
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
2200Indexing scheme relating to amplifiers
408the output amplifying stage of an amplifier comprising three power stages
Applicants Gianluigi De Geronimo
Brookhaven Science Associates, LLC
Shaorui Li
Inventors Gianluigi De Geronimo
Shaorui Li
Agents Dorene M. Price
Title
(EN) Shaper design in CMOS for high dynamic range
Abstract
(EN)

An analog filter is presented that comprises a chain of filter stages, a feedback resistor for providing a negative feedback, and a feedback capacitor for providing a positive feedback. Each filter stage has an input node and an output node. The output node of a filter stage is connected to the input node of an immediately succeeding filter stage through a resistor. The feedback resistor has a first end connected to the output node of the last filter stage along the chain of filter stages, and a second end connected to the input node of a first preceding filter stage. The feedback capacitor has a first end connected to the output node of one of the chain of filter stages, and a second end connected to the input node of a second preceding filter stage.

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