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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| 2010-08-24 | Using digital potentiometers for programmable amplifier gain Using digital potentiometers for programmable amplifier gain |
| 2010-04-05 | Digipots operate from 1.7-5.5V single power supply Maxim Integrated Products is rolling out a family of dual, 256-tap, volatile digital potentiometers that operate from a single 1.7V to 5.5V power supply. |
| 2010-02-11 | 1.7V digipots tailored for power-sensitive apps Maxim's dual, 256-tap, volatile digital potentiometers operate from a single 1.7V to 5.5V power supply, making them suitable for power-sensitive applications |
| 2009-10-22 | Panel pots extend to two million cycles Vishay Intertechnology has doubled the rotational life of its P30L compact panel potentiometers to deliver two million cycles at rated power. |
| 2009-10-16 | Dual-channel digipots pack volatile wiper register ON Semiconductor's digitally programmable potentiometers can also be used as a two-terminal, variable rheostat. |
| 2009-09-21 | SPI protocol and bus configuration of multiple DCPs This application note describes SPI bus implementations that use Intersil's digitally controlled potentiometers (DCPs). |
| 2009-07-02 | Panel potentiometers aim at amp, audio apps Panel potentiometers aim at amp, audio apps |
| 2009-05-21 | I²C digipots deliver increased accuracy, reliability Microchip Technology Inc. has introduced the MCP401X family of low power 7bit I²C digital potentiometers that feature static current consumption of just 2.5µA. |
| 2009-05-20 | Digipot integrates I²C interface, EEPROM ON Semiconductor has extended its family of Digitally Programmable Potentiometers (DPP) with a new 256-tap, single-channel linear-taper device. |
| 2009-04-28 | Improve stereo performance with active biasing This application note discusses trade-offs of active and passive biasing circuits used in consumer audio products. The use of these circuits in digital potentiometers and volume controls is compared in terms of audio parameters like separation and mute. Equations help designers evaluate their design trade-offs for a specific situation |
| 2009-03-18 | Pots, pans, logs and linear digital pots create arbitrary voltage curves Linear digital potentiometers can be used to make arbitrary voltage curves and waveforms. An alternative name for a digital pot is a "string" DAC. Logging pots is the art of making a linear pot produce a logarithmic response for applications such as audio. |
| 2009-01-28 | Panel potentiometers come in compact form Panel potentiometers come in compact form |
| 2008-10-16 | Design for precision with DCPs Digitally controlled potentiometers have become very popular in a wide variety of applications including control, parameter adjustment and signal processing. |
| 2008-07-23 | Achieving precision performance from digital pots The digital pots replace mechanical potentiometers and provide advantages such as remote operation and programmability, higher resolution, much smaller form factor, increased reliability, ability to store multiple wiper positions, and lower total system cost. |
| 2008-05-28 | Minimizing the temperature dependence of digitally programmable potentiometers Minimizing the temperature dependence of digitally programmable potentiometers |
| 2008-05-28 | Everything you wanted to know about digitally programmable potentiometers Everything you wanted to know about digitally programmable potentiometers |
| 2008-05-28 | Programmable analog functions This application note by Chuck Wojslaw for Catalyst provides the analog design engineer with basic reference designs and circuit ideas for controlling the key parameters of analog circuits using DPP connected to a computer bus or MCU. |
| 2008-03-04 | Digitally controlled pots come in tiny package Intersil has announced two new low-noise, low-power, single push-button digitally controlled potentiometers in small 2mm x 1.6mm micro-TQFN packages. |
| 2008-01-28 | The CAT5132 used for VCOM buffer control in a TFT LCD display Catalyst's CAT5132 solution maintains the simplicity of the mechanical potentiometer solution while providing the versatility and reliability of the DAC solution at a much lower cost. |
| 2008-01-22 | Panel pot lasts to 1 million cycles While standard panel potentiometers reach 100,000 cycles, Vishay's P30L panel potentiometer offers a long life of 1 million cycles. |
| 2007-11-22 | Panel potentiometers fit music industry apps Panel potentiometers fit music industry apps |
| 2007-11-20 | Low-power volatile digipots include SPI interface Microchip Technology Inc. has released the MCP4131/2, MCP4231/2, MCP4151/2 and MCP4251/2 volatile, 7- and 8bit digital potentiometers that have SPI interface. |
| 2007-10-24 | SPI interface characterizes digital potentiometers SPI interface characterizes digital potentiometers |
| 2007-09-27 | How to construct a pushbutton controller for the DS1803/DS1805 digital potentiometers How to construct a pushbutton controller for the DS1803/DS1805 digital potentiometers |
| 2007-08-15 | DACs vs. digital potentiometers: Which is right for my application DACs vs. digital potentiometers: Which is right for my application |
| 2007-06-11 | DC/DC module trim with digital potentiometers DC/DC module trim with digital potentiometers |
| 2007-05-11 | Nonvolatile DCPs function from -40°C to 125°C The new families of nonvolatile DCPs from Intersil Corp. provide precision measurement and a wide operating temperature range for applications designed to function from -40°C to 125°C. |
| 2007-03-16 | Position sensing tech in automotive apps While traditional sensing technologies have their strengths, the development of inductive sensing technology offers solutions to the technical challenges and needs of today's demanding automotive electronics. |
| 2007-01-26 | Precision pots suit heavy sideload apps The enhanced potentiometers from BI Technologies are capable of up to one pound of sideload and feature industry-standard specifications that have been designed-in worldwide. |
| 2007-01-23 | Linear pot promises 10 million cycles The new linear potentiometer from Spectrum Sensors and Controls provides a rotational life of 10 million cycles with an output smoothness of +0.1 percent maximum. |
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