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Defining & Testing Dynamic Parameters in High Speed ADCs, Part 1: Maxim
Application Notes / 728 / May-05 (app note added 6/06) |
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Delay Simulator Debugs Communications Equipment: 10/27/94 EDN-Design Ideas /
(added 3/03) Phone calls over satellite circuits experience a ¼-sec transmission
delay in each direction. The low-cost circuit (around $20) in Fig 1a simulates this
delay and provides hooks for inserting noise, echo, and other impairments. Designers
debugging modems, fax machines, and other communication equipment can use this circuit
to troubleshoot handshake timing and connection problems caused by transmission
delays. |
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Delta Sigma ADC Bridge Measurement Techniques: AN96 - Linear Technology -
AN96 features several applications that demonstrate how to take full advantage of
Linear Technology's delta sigma ADCs when interfacing to sensors. In many cases,
signal conditioning can be greatly simplified or eliminated completely. This note
explains where it is appropriate to use amplifiers and how to optimize amplifier gain.
Also included are discussions on measuring effective number of bits (ENOB) and the
relationship to instrument performance, frequency response of delta sigma ADCs, and
test techniques. C source code for all of the applications is included to aid firmware
development. |
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Design makes handy audible circuit tracer: 01/09/03 EDN-Design Ideas /
(added 10/03) The circuit tracer in Figure 1 is a handy tool for finding connectivity
paths on a pc board. Because the sense voltage you use to measure the path is lower
than a transistor's VBE voltage, you can use the design in circuits containing
semiconductor elements without affecting the measurement. The tracer's output takes
the form of audio tones |
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Designer's Guide to Flash-ADC Testing, Part 1: AN-215A - Analog Devices
Application Notes (app note added 6/06) Flash ADCs Provide the Basis for
High Speed Conversion. |
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Designer's Guide to Flash-ADC Testing, Part 2: AN-215B - Analog Devices
Application Notes (app note added 6/06) DSP Test Techniques Keep Flash
ADCs In Check |
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Designers's Guide to Flash-ADC Testing, Part 3: AN-215C - Analog Devices
Application Notes (app note added 6/06) Measure Flash-ADC Performance for
Trouble-Free Operation |
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Designing and Characterizing TRL Fixture Calibration Standards For Device Modeling
(11/20/01) : Application Note - California Eastern Laboratories - Doc #954
(app note added 6/06) |
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Designing and Testing 3GPP W-CDMA User Equipment: Aligent Application Note
(added 2/06) |
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Designing and Testing cdma2000 Base Stations: Aligent Application Note
(added 2/06) |
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Designing Energy Meters with the PIC16F873A: Microchip Application Note -
Published 12-Sep-05 (app note added 6/06) |
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Designing RF Probe: make your self simple and highly useful RF probe. An
essential tool for every home brewer. . (added 9/04) |
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Detecting Keys using a Timer: Toshiba 870X Series Application Note
(app note added 2/06) |
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Detecting Keys using an A/D Converter: Toshiba 870X Series Application Note
(app note added 2/06) |
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Dew sensor: (electronic circuit added 10/05) |
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DIGITAL LED AMMETER: Measures current up to 10A with selected 100mA, 10mA
and 1mA resolutions. (circuit added 8/06) |
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DIGITAL LED VOLTMETER: Measures voltages up to 199.9V with 0.1V resolution.
(circuit added 8/06) |
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Digital PC Oscilloscope: (circuit / schematic added 2/03) |
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Digital Volt Meter with Video Output: (electronic circuit added 09/05) |
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Digital Volume Control: based on DS1669 Digital Pot IC (added 5/02) |
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Digital/Standard Phone Line Tester: make sure that the line is suitable for
modem use and your PCMCIA does not damage if you plug it in (added 5/02) |
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Digitally Programmable resistor serves as test load: 03/03/05 EDN Design
Ideas / (added 5/05) Figure 1 illustrates a digitally programmable
precision resistance that can serve as a microprocessor-driven power-supply load in
custom-designed ATE (automatic-test equipment). An 8-bit current-output DAC, IC1, a
DAC08, drives current-to-voltage converter IC2A, which in turn drives the gate of
power MOSFET Q1. |
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Dip Oscillator for HF: (electronic design / schematic added 2/05) |
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Distortion Analyzer: (electronic (schematic / circuit added 4/02) |
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DMM Measures Light Level #1: 08/15/96 EDN-Design Ideas / (added 3/03)
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DP83815 MacPHYTER and DP83816 MacPHYTER-II High Data Rate Stress Testing:
National Semiconductor - Application Note (app note added 2/06) |
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DTMF Receiver IC MT8870 Tester: (circuit / schematic design added 6/06) |
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Dynamic load circuit determines a battery's internal resistance: 03/31/05
EDN Design Ideas / (added 5/05) Meet the challenge of measuring a
battery's internal parameters with a nonstatic load approach. |
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Dynamic Testing of High Speed ADCs, Part 2: Maxim Application Notes / 729 /
Feb-06 (app note added 6/06) |
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E-B-C Transistor Pin Identifier: Tests transistors and diodes for polarity -
Simple circuitry - 9V Battery operation (added 02/05) |
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Electromagnetic Emissions Test Report on Solid State Energy Meter: Electro -
Analog Devices Application Notes (app note added 6/06) This report
describes electromagnetic immunity testing performed on September 9, 1999 through
September 10, 1999 on the Solid State Energy Meter. Testing was performed pursuant to
IEC 1036:1996, a standard for alternating static watt-hour meters for active energy. |
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Electromagnetic Emissions Test Report on the AD7755: AD7755 - Analog Devices
Application Notes (app note added 6/06) This document describes
electromagnetic emissions testing performed on the Energy Meter (AD7755)
on September 8, 1999, pursuant to EN55022 requirements. It may be used to demonstrate
compliance with the European Union emissions requirements pursuant to the EMC
directive |
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Electromagnetic Field Detector #2: This circuit is sensitive to low
frequency electromagnetic radiation and will detect for example hidden wiring or the
field that encompasses a transformer. Pickup is by a radial type inductor, used as a
probe which responds well to low frequency changing magnetic and electric fields.
Ordinary headphones are used to for detection. The field that surrounds a transformer
is heard as a50 or 60Hz buzz. (added 5/02) |
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Electromagnetic field detector #3: This lovely circuit is a real gem! Easy
to assemble and more sensitive than many commercial devices available. It's based
around an LF351 low-noise operational amplifier and a 1mF choke acting as the sensor.
Unlike most other simple EMF detectors, this one has a meter output for accurate
reading, but alternatively, you can also roughly estimate the frequency of the field
by plugging in headphones. It can detect any field from 50Hz to 100kHz, making it
highly versatile and a worthwhile addition to any hobbyist's workbench. (added 10/05) |
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Electromagnetic field detector: (electronic design added 10/06) |