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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,.... [Design Idea by Frank Ciarlone, Analog Devices,
Wilmington, MA] |
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A Digitally Programmable Gain & Attenuation Amplifier Design -
AN-137 Analog Devices App Notes (app note added 2/06) |
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A Single Amplifier Precision High Voltage Instrument Amp - DN25
Design Notes (Linear Technology) (app note added 1/06) |
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A User's Guide to I.C. Instrumentation Amplifiers - AN-244 Analog
Devices Application Notes (app note added 2/06) |
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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..... [Design Idea by Francis Rodes, Olivier Chevalieras,
and Eliane Garnier, ENSEIRB, Talence, France] |
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AC-coupling instrumentation amplifier improves rejection range of differential DC
input voltage - 09/30/04 EDN-Design Ideas The need for conditioning lowlevel ac
signals in the presence of both common-mode noise and differential dc voltage prevails
in many applications. In such situations, ac-coupling to instrumentation and
difference amplifiers....Page includes several designs. Scroll to find this one....
[Design Idea by Francis Rodes, Olivier Chevalieras, and Eliane Garnier, ENSEIRB,
Talence, France] |
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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 riding on a common-mode voltage that is
considerably.... [Design Idea by Jonathan Pearson, Analog Devices, Wilmington, MA] |
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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] |
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Amplifier cancels common-mode voltage - 10-May-07 Issue of EDN You can eliminate
common-mode-voltage errors with this amplifier circuit that subtracts out the
error.... [Design Idea by W Stephen Woodward, Chapel HIll, NC] |
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An IC Amplifier User’s Guide to Decoupling, Grounding, & Making Things Go Right for a
Change - AN-202 Analog Devices Application Notes (app note added 2/06)
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AN-137: A Digitally Programmable Gain & Attenuation Amplifier Design - AN-137
Analog Devices Application Notes (app note added 2/06) |
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AN-202: An IC Amplifier User’s Guide to Decoupling, Grounding, & Making Things Go
Right for a Change - AN-202 Analog Devices Application Notes (app note added
2/06) |
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AN-214: Ground Rules for High Speed Circuits - AN-214 Analog Devices Application
Note (app note added 2/06) Layout and Wiring Are Critical in Video Converter
Circuits. |
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AN-244: A User's Guide to I.C. Instrumentation Amplifiers - AN-244 Analog Devices
Application Notes (app note added 2/06) |
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AN-245: Instrumentation Amplifiers Solve Unusual Design Problems - AN-245 Analog
Devices Application Notes (app note added 2/06) Traditionally Considered Only for
Transducer-Conditioning Applications, Instrumentation Amplifiers Bring Unique
Performance Benefits to a Range of Or Applications as Well. |
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AN-275: Versatile Transmitter Chip Links Strain Gauges & RTDs to Current Loop -
AN-275 Analog Devices Application Notes (app note added 2/06) |
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AN-282: Fundamentals of Sampled Data Systems - AN-282 Analog Devices Application
Notes (app note added 2/06) |
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AN-306: Synchronous System Measures µΩs - AN-306 Analog Devices Application
Notes (app note added 2/06) Synchronous Detection Scheme Measures Low Resistances
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AN-307: Modem-Circuit Techniques Simplify Instrumentation Designs - AN-307)
Analog Devices Application Notes (app note added 2/06) A commutating modem circuit,
wher an IC or pc-board, can serve as a building block for many measurement-system
functions, reducing noise and ensuring integrity of transmitted data. |
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AN-320B: CMOS Multiplying DACs & Op Amps Combine to Build Programmable Gain
Amplifiers, Part 2 - AN-320B Analog Devices Application Notes (app note added
2/06) |
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AN-345: Grounding for Low-and-High-Frequency Circuits - AN-345 Analog Devices
Application Notes (app note added 2/06) Know Your Ground and Signal Paths for
Effective Designs. Current Flow Seeks Path of Least Impedance-Not Just Resistance....
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AN-348: Avoiding Passive-Component Pitfalls - AN-348 Analog Devices Application
Notes (app note added 2/06) The Wrong Passive Component Can Derail Even Best Op Amp
or Data Converter. Here Are Some Basic Traps to Watch For. |
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AN-349: Keys to Longer Life for CMOS - AN-349 Analog Devices Application Notes
(app note added 09/08) Here's How CMOS Can be Protected Against Abuse |
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AN-539: Errors & Error Budget Analysis in Instrumentation Amplifier Applications
- AN-539 Analog Devices Application Notes (app note added 2/06) Describes a
systematic approach to calculating overall error in an instrumentation amplifier
application. |
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AN-581: Biasing & Decoupling Op Amps in Single Supply Applications - AN-581
Analog Devices Application Notes (app note added 2/06) |
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AN-589: Ways to Optimize the Performance of a Difference Amplifier - AN-589
Analog Devices Application Notes (app note added 2/06)This Application Note presents
several ways to build and optimize performance of a discrete difference amplifier. It
also recommends amplifiers that will make overall solution cost/performance
competitive with monolithic instrument amplifiers. |
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AN-60-034 Transient Protection of Darlington gain block Amplifiers - Application
Note MiniCircuits.com (app note added 6/07) |
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AN-669: Effectively Applying the AD628 Precision Gain Block - AN-669 Analog
Devices Application Notes (app note added 2/06) |
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AN-671: Reducing RFI Rectification Errors in In-Amp Circuits - AN-671 Analog
Devices Application Notes (app note added 2/06) |
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AN-683: Strain Gage Measurement using an AC Excitation - AN-683 Analog Devices
Application Notes (app note added 2/06) |
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AN-730: Theory of Operation for AD8555 Evaluation Hardware & Software - AN-730
Analog Devices Application Notes (app note added 2/06) |
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AN-772: A Design & Manufacturing Guide for the Lead Frame Chip Scale Package -
AN-772 Analog Devices Application Notes (app note added 2/06) |
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Applications for a Switched-Capacitor Instrumentation Building Block - AN3 Linear
TechnologyThis application note describes a wide range of useful applications for
LTC1043 dual precision instrumentation switched capacitor building block. Some of
applications described are ultra high performance instrumentation amplifier, lock-in
amplifier, wide range digitally controlled variable gain amplifier, relative humidity
sensor....(app note added 6/06) |
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Autozeroed amplifier with halved noise needs few components - 25-Oct-07 Issue of
EDN The unique architecture of the Analog Devices AD8553 instrumentation amplifier
permits paralleling devices to lower noise.... [Design Idea by Marián Štofka, Slovak
University of Technology, Bratislava, Slovakia] |
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Avoiding Passive-Component Pitfalls - AN-348 Analog Devices Application Notes
(app note added 2/06) The Wrong Passive Component Can Derail Even Best Op Amp or Data
Converter. Here Are Some Basic Traps to Watch For. |
