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Automatic Gain Control Circuits
(AGC)
Last Updated on:
Friday, March 23, 2012 04:29 PM |
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Links to electronic circuits,
electronic schematics, designs for engineers, hobbyists, students & inventors:
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Digital Automatic Gain Control Agc - (electronic circuit added
7/03) |
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Full-wave rectifier has programmable gain - 11/09/00 EDN-Design
Ideas The traditional approach to the design of a full-wave
rectifier (Figure 1) is to set the gains of IC1 and IC2 to 1 and use
the….PDF contains multiple circuits, scroll to find the one of
interest.... [Design Idea by Chuck and Chris Wojslaw, Xicor Inc, Milpitas,
CA] |
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Gain-of-three amplifier requires no external resistors -
17-Aug-06 Issue of EDN One IC provides wideband amplification and
minimizes parts count.... [Design Idea by Marián Stofka, Slovak University
of Technology, Bratislava, Slovakia; Edited by Brad Thompson and Fran
Granville] |
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Gain-of-two instrumentation
amplifier uses no external resistors - 15-Feb-07 Issue of EDN
Two ICs deliver precision gain with no external components.... [Design
Idea by Marián Štofka, Slovak University of Technology, Bratislava,
Slovakia; Edited by Brad Thompson and Fran Granville] |
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Gain-programmable circuit offers performance and flexibility - 25-Nov-04
Issue of EDN You can use a standard precision instrumentation amplifier, such as
the INA118 or AD623, as a gain-programmable amplifier with high accuracy and wide gain
range. However, the gain range of such parts is fixed at certain values, limiting
their flexibility. To solve the problem, a usual way is to use a gain-adjustable
circuit controlled by a microcomputer (Figure 1].... [Design Idea by Luo Bencheng, Key
Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences] |
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High-Frequency AGC has Digital Control - 05/21/98 EDN-Design Ideas As
FPGA capabilities increase and time to market decreases, FPGAs gain more acceptance
for implementing both data and control paths. Thus, they find wide use as controllers
and datapath glue logic for fast-page DRAMs. Synchronous DRAMs (SDRAMs], whose....file
has several circuits, pleaas scroll to find this one.... [Design Idea by Ron Mancini,
Harris Semiconductor, Melbourne, FL] |
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Low-noise ac amplifier has
digital control of gain and bandwidth - 02/05/04 EDN-Design Ideas In
low-noise analog circuits, a high-gain amplifier serves at the input to increase the
SNR. The input signal level determines the input-stage gain; low-level signals require
the highest gain. It is also standard practice in low-noise analog-signal processing
to make the circuit's bandwidth as narrow as possible to pass only the useful
input-signal spectrum.... [Design Idea by Philip Karantzalis, Linear Technology,
Milpitas, CA, |
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OA-16: OA-16 Wideband AGC Amplifier as a Differential Amplifier - National
Semiconductor Application Note (app note added 6/06) |
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Sync Separator Includes AGC - 05/11/95 EDN-Design IdeasThis sync separation
circuit has a gain-control circuit that helps to stabilize the sync-separation
function....[Design Idea added 6/06] EDN migrating links. This link is not verified.
Google the "title" EDN for new link. |
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Wideband AGC Amplifier as a Differential Amplifier - National Semiconductor
Application Note 10-Apr-2000 (app note added 4/02) |
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Wideband AGC has 60 DB Dynamic Input Range - 10/10/96 EDN-Design
Ideas: Automatic-gain-control (AGC] circuits serve in many applications to maintain
signals at fixed levels. However, in applications such as digital-receiver circuits
and back-channel modems, the function of the AGC often aims more at increasing dynamic
input range through the controlled application of both gain and attenuation. In this
type of application, the AGC is usually upstream of a high-speed ADC. The.... [Design
Idea by Carl Dickey, National Semiconductor, Comlinear Division] |
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