Electronic Design

"Manually Operated Digital Pot" Is Revisited

An idea for design published in the April 2, 2001 issue, "Manually Operated Digital Pot Doesn't Need A Microprocessor," uses two proprietary ICs to manually control a digital potentiometer. After ...
Electronic Design

Manually Operated Digital Pot Doesn't Need A Microprocessor

Digital potentiometer ICs such as the MAX5160 and MAX5161 are good replacements for mechanical types. But these ICs are designed to work with microcontrollers. In ...
EDN

Digital pot can control gain over a 90 dB span like an electromechanical

A short while back, I published a design idea that uses a single linear pot to control the gain of a high performance OP37 decompensated op-amp over an unusually wide (-30 dB to +60 dB) range. Figure ...
EDN

Digital pots shrink volume controls

It is now common for portable equipment to include some sort of stereo audio playback circuitry, perhaps for MP3 or Web radio applications. Many specialist ICs are available to use as building blocks ...
Hackaday

Try A PWMPot

[Stephen Woodward] is familiar with digital potentiometers but is also familiar with their limitations. That spurred him to create the PWMPot which performs a similar function, but with better ...