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What is a digital potentiometer?
A digital potentiometer is a variable resistor that can be used as a voltage divider. It adjusts and trims electronic circuits similar to variable resistors, rheostats and mechanical potentiometers. Also called digital POT, RDAC, or digipot, these compact devices can be used to calibrate system tolerances or dynamically control system parameters.
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2004-11-05 Wujin Spike potentiometers rated at 0.25W
The new WH116AK-4R potentiometers from Wujin Spike feature a rated power of 0.25W and have a total rotational torque of 270.
2004-06-29 Wujin Spike potentiometers rated at 0.25W
Wujin Spike released its WH168 series of potentiometers that have a rated power of 0.25W and operating angle of -10 to 40.
2001-06-11 Using Xicor digitally controlled potentiometers in commercial RF power amplifier applications
This application note describes how to implement Xicor's digitally controlled potentiometers in commercial RF power amplifier applications.
2002-11-13 Using multiple DS1267 Digital Potentiometers with an 8051 microprocessor generating 3-wire signals
This application note provides an overview of different configurations for communicating to multiple DS1267s with a common bus.
2001-04-09 Using multiple DS1267 digital potentiometers with an 8051 microprocessor generating 3-wire signals
This application note provides an overview of different configurations for communicating to multiple DS1267 digital potentiometers with a common bus. It also provides the hardware and software required for communicating to two DS1267s daisy-chained together in series.
2004-05-25 Using digital potentiometers to design low-pass adjustable filters
This app note presents a programmable, second-order, low-pass filter in four different scenarios.
2003-06-28 Using Digital Potentiometers in Adjustable Step-Down DC-DC Converter Design.
This application note describes how to use a digital ptoentimeter to generate an adjustable voltage supply a MAX1776 Step-Down DC-DC Converter.
2010-08-24 Using digital potentiometers for programmable amplifier gain
This application note discusses implementations of programmable gain circuits using an op amp and a digital potentiometer.
2005-06-07 Upgrading from mechanical potentiometers to digital pots
This app note describes advantages and disadvantages, and presents a summary of the comparison
2003-03-04 Top-Up trimming potentiometers rated at 220V
The TM3362 series of ceramic trimming potentiometers from Top-Up Ind. Corp. has a resistance range of 100 to 2M with 10 percent tolerance and a voltage rating of 220V.
2007-10-24 SPI interface characterizes digital potentiometers
The latest non-volatile digital potentiometers from Microchip Technology Inc. feature SPI interface.
2006-08-23 Single-turn precision potentiometers offer 'lowest' profile
BI Technologies Electronic Components Division said its new single turn potentiometers are the lowest profile precision pots on the market.
2001-06-11 Shaft encoder drives multiple XICOR digitally controlled potentiometers (XDCPs)
This application note details how to drive multiple digitally controlled potentiometers by using shaft encoders.
2001-06-11 Sensor circuits and digitally controlled potentiometers
This application is intended to illustrate the use of Xicor's digitally controlled potentiometers to automate the control of the key parameters of sensor circuits.
2003-09-19 Resolution enhancements of Digital Potentiometers with Multiple Devices
This application note explains how digital potentiometers can be configured to optimize the resolution of a given application.
2003-10-03 Programmable Oscillator Uses Digital Potentiometers
This application note describes the design of an oscillator where setting the resistance of the digital potentiometers programs the oscillation frequency and amplitude independently.
2001-06-11 Power supply and dc to dc converter control using XICOR digitally controlled potentiometers
This application note discusses how to control the output voltages of power supplies and dc/dc converters using Xicor's digitally controlled potentiometers.
2007-11-22 Panel potentiometers fit music industry apps
TT electronics BI Technologies Electronic Components Division's panel potentiometers, offered in a wide range of sizes and configurations, are being specified for applications in the music industry.
2009-01-28 Panel potentiometers come in compact form
Vishay has announced two compact panel potentiometers with high dielectric strength of 5,000VRMS. With their 12.5mm size, the new P11P and P11D offer a compact alternative to other low-cost panel potentiometers.
2009-07-02 Panel potentiometers aim at amp, audio apps
TT electronics BI Technologies has developed custom panel potentiometers for XP Audio's Bolt guitar amplifiers. With conductive plastic elements, concentric shafts and life cycles as high as one million rotations, the potentiometers suit amplifier and other pro audio apps.
2001-06-11 Op-amp gain and offset trim using XICOR digitally controlled potentiometers
This application note discusses how to use Xicor's digitally controlled potentiometers for amplifier gain and offset reduction.
2008-05-28 Minimizing the temperature dependence of digitally programmable potentiometers
This application note by Chuck Wojslaw for Catalyst will look at approaches in reducing the temperature dependence of electronic products.
2001-04-11 LCD contrast control using Dallas Semiconductor digital potentiometers
This application note describes how to use the DS1668/DS1669 digital potentiometers as drop-in replacements for the standard mechanical potentiometer used in LCDs to control contrast.
2004-11-23 How to increase the bandwidth of digital potentiometers 10x to 100x
This app note presents a simple circuit technique to increase the bandwidth of digital potentiometers by a factor of 10 to 100 times.
2007-09-27 How to construct a pushbutton controller for the DS1803/DS1805 digital potentiometers
This application note describes a simple method that uses pushbuttons and a microcontroller to change the resistance of a DS1803 or DS1805 digital potentiometer.
2004-03-17 Hongming potentiometers rated at 0.1W
Hongming Electronics' WH16K potentiometer features a rating of 0.1W and total resistance range of 10 kiloohms to 1 megohm.
2002-01-07 Guanghua sliding potentiometers feature 8mm profile
The SL09 series low-profile sliding potentiometers, which include models SL09N and SL09G, feature an 8mm height, a miniature level wobble and a detachable frame terminal.
2008-05-28 Everything you wanted to know about digitally programmable potentiometers
This application note by Chuck Wojslaw for Catalyst Semi answers frequently asked questions about the fundamentals of electronic or digitally programmable potentiometers.
2002-04-16 Digital potentiometers enhance volume controls
This technical news feature discusses some the advantages and disadvantages of implementing digital potentiometers to shrink volume control size in audio systems.
2006-03-07 Digital potentiometers consume 0.3A
Microchip Technology announced a family of low-power, low-voltage, 6bit digital potentiometers that are said to be cost and size competitive with mechanical versions.
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