The TPL0202 has two linear-taper digital potentiometers (DPOTs) with 256 wiper positions. Each potentiometer can be used as a three-terminal potentiometer or as a two-terminal rheostat. The TPL0202-10 has an end-to-end resistance of 10 kΩ.
This DPOT can be used as a mechanical potentiometer replacement, allowing the user (or software) to digitally control and adjust resistance.
The TPL0202 has non-volatile memory (EEPROM) which can be used to store the wiper position for automatic recall upon power-up. The internal registers of the TPL0202 can be accessed using a SPI-compatible digital interface.
|Part number||Order||Number of steps||Number of channels (#)||Resistance taper||Memory||Interface||Operating temperature range (C)||Bandwidth (MHz)||Temp coeff (typ) (ppm/°C)|
||256||2||Linear||Non-Volatile||SPI||-40 to 105||2||132|
||256||2||Linear||Non-Volatile||I2C||-40 to 85||0.25||130|
||128||1||Linear||Volatile||I2C||-40 to 125||2.8||22|
||128||1||Linear||Volatile||I2C||-40 to 125||2.8||20|
||256||1||Linear||Volatile||SPI||-40 to 125||0.25||35|