potentiometer What is a digital potentiometer? Search results

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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2011-08-29	Panel controls offer potentiometer substitute Panel controls offer potentiometer substitute
2011-07-04	Digital resistor sets operating power for laser driver Integrating an op amp and a digital potentiometer to a standard laser-driver circuit produces a driver that varies the laser's power-set point in response to temperature, generating a photodiode current that is a linear function of the potentiometer value.
2011-06-27	Use a linear potentiometer to create a non-linear transfer function for audio volume control Use a linear potentiometer to create a non-linear transfer function for audio volume control
2011-05-03	Simple nonvolatile gating Read about circuits that store the gating signal (block or transmit) using a digital potentiometer (MAX5427 or MAX5527) controlled by a serial interface.
2011-04-18	Add precise output adjustment to low-voltage supplies To tweak supply-voltage levels and adjust voltage margins as required, the circuit introduces an op amp and digital potentiometer to control the feedback voltage to the voltage regulator.
2011-01-20	Driver provides proportional solenoid control without PLC or Here's a 32-tap, linear-taper digital potentiometer that acts as a variable resistor in a voltage divider, connected to the DIM input of an LED driver.
2010-06-28	Using digital potentiometers for programmable amplifier gain This application note discusses implementations of programmable gain circuits using an op amp and a digital potentiometer.
2010-04-28	DPP to control LED brightness This application note shows a DPP circuit used in combination with the CAT32 white LED driver. The digitally programmable potentiometer is connected as a 2-terminal variable resistor.
2009-12-14	Slide pots feature 15-100mm travel lengths BI Tech has developed a full family of slide potentiometers designed for pro-audio equipment.
2009-10-22	Panel pots handle harsh environments Vishay Intertechnology has extended the rotational life of its P30L compact panel potentiometers to deliver 20 lakh cycles at rated power.
2009-10-16	Digital potentiometers tout 256 taps The CAT5270 allows microprocessor control of up to 16 devices from a single bus, while the CAT5271 offers a single, fixed address.
2009-10-02	Methods for calibrating gain error in data converter systems This applications note describes how a voltage reference can be trimmed using a digital potentiometer.
2009-09-07	Understanding digital potentiometer resistor variations Understanding digital potentiometer resistor variations
2009-09-01	A compendium of application circuits for Intersil's digitally-controlled (XDCP) potentiometers This application note lists a number of application circuits for Intersil's digitally-controlled (XDCP) potentiometers.
2009-08-31	Power supply and DC/DC converter control using Intersil digitally controlled potentiometers (XDCPs) Here's how non-volatile XDCPs provide significant advantages over mechanical potentiometers for power supplies in both manufacturing and in the field.
2009-07-02	Guitar amps get custom pot BI Technologies has developed custom panel potentiometers for XP Audio's Bolt guitar amplifiers.
2009-06-30	Low-tolerance DCP can be used as variable resistor Intersil Corp. has released what it touts to be the first digitally controlled potentiometer (DCP) with <1 per cent typical resistor tolerance.
2009-05-20	Digital potentiometer features on-chip EEPROM Digital potentiometer features on-chip EEPROM
2009-04-30	Boost stereo performance with active biasing Know the trade-offs of active and passive biasing circuits used in consumer audio products.
2009-01-06	Compute wiper voltage of digital potentiometer Compute wiper voltage of digital potentiometer
2008-10-22	Minimise temp dependence of DPPs Look at these approaches to reducing the temperature dependence of electronic products.
2008-10-17	Programming analogue circuits Here are basic reference designs and circuit ideas for controlling the key parameters of analogue circuits using DPPs.
2008-10-16	A comprehensive discussion on digitally programmable potentiometer A comprehensive discussion on digitally programmable potentiometer
2008-08-04	Digital potentiometers save PCB area ADI rolls out potentiometers designed for open-loop applications and systems that demand tolerance matching.
2008-07-30	Rotary potentiometer targets heavy-duty equipment Rotary potentiometer targets heavy-duty equipment
2008-07-25	Compact potentiometer switch saves panel space Compact potentiometer switch saves panel space
2008-07-15	Panel potentiometer offers 500,000 cycles Panel potentiometer offers 500,000 cycles
2008-07-03	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.
2008-07-03	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.
2008-04-07	32-tap device provides easy digital interface Catalyst Semiconductor has added a new 32-tap device to its extensive family of digitally programmable potentiometers (DPP).

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