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Amplifier Circuits: Differential
Page 1 Differential Amplifiers: #-AB-EF-NO-Z Amplifier -- Main Page Last Updated on:
Monday, October 03, 2011 06:07 PM
Links to electronic circuits,
electronic schematics, designs for engineers, hobbyists, students & inventors:
-/+-0.1V Differential Amplifier Circuit using Zero Threshold EPAD MOSFETs - This
circuit presents a differential amplifier using Zero Threshold EPAD MOSFETs that
oooooperates on 1/- 0.1v supplies. The schematic diagram is for a single amplifier
stage…Circuit Ideas for Designers Application Notes Advanced Linear Devices, Inc.
(app note added 6/06)
2 instrumentation amps make accurate voltage-to-current-source - 14-May-09 Issue
of EDN Many designs require precise voltage-controlled current sources, especially in
the presence of variable loads. Common approaches, which use a few op amps and a
handful of passive components, have inherent errors due to nonideal component
characteristics, such as finite open-loop gain, common-mode rejection, bias current,
and offset voltage.... [Design Idea by Frank Ciarlone, Analog Devices, Wilmington, MA]
AC coupling instrumentation amplifier improves rejection range of
differential DC input voltage - 30-Sep-04 Issue of EDN The need for
conditioning low-level ac signals in the presence of both common-mode
noise and differential dc voltage prevails in many applications....PDF has
several circuits listed, please scroll down to find this one.... [Design
Idea by Francis Rodes, Olivier Chevalieras, and Eliane Garnier, ENSEIRB,
Talence, France]
Active-feedback IC serves as current-sensing instrumentation amplifier
- 24-Jul-03 Issue of EDN High-speed current sensing presents a designer
with some significant challenges. Most techniques for sensing current
involve measuring the differential voltage the current produces as it
flows through a sense element, such as a resistor or a Hall-effect device.
The differential voltage across the sense element is generally small and
is often... [Design Idea by Jonathan Pearson, Analog Devices, Wilmington,
MA]
Amplifier and current-source emulate instrumentation amplifier - 13-Nov-03 Issue
of EDN The classic three- or two-op-amp instrumentation-amplifier circuits are
standard ways to amplify a small-amplitude differential signal contaminated with high
common-mode noise. In some applications, the signal source is floating with
high-series-output impedance and thus requires an appropriate high-input-impedance
amplifier.... [Design Idea by Dobromir Dobrev, Jet Electronics, Sofia, Bulgaria]
Amplifier removes common-mode noise on RGB differential-video-transmission line -
13-Apr-06 Issue of EDN Use a single operational amplifier to minimize common-mode
signals' effects on differential-component-video receivers.... [Design Idea by Tamara
Papalias and Mike Wong, Intersil Corp; Edited by Brad Thompson and Fran Granville]
