admir
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proteus mcp42050
I'm looking for a cheap digital potentiometer, for opamp gain control.
The requirements for the design are: single supply 0-5V, SPI daisy-chained or I2C, 64-256 taps, independent A B and W terminals, 50-100k.
I was looking at datasheets from: Microchip MCP42050, Maxim MAX5478, Dallas DS1844, DS1868, but they aren't cheap (~ $2). Analog Devices or others are much more expensive...
Any ideas?
I'm looking for a cheap digital potentiometer, for opamp gain control.
The requirements for the design are: single supply 0-5V, SPI daisy-chained or I2C, 64-256 taps, independent A B and W terminals, 50-100k.
I was looking at datasheets from: Microchip MCP42050, Maxim MAX5478, Dallas DS1844, DS1868, but they aren't cheap (~ $2). Analog Devices or others are much more expensive...
Any ideas?