Intersil
Quad Digitally Controlled Variable Resistors
Renesas Electronics
Quad Digitally Controlled Variable Resistors Low Noise, Low Power I2C Bus, 256 Taps
Intersil
Quad Digitally Controlled Potentiometers (XDCP™)
Renesas Electronics
Quad Digitally Controlled Variable Resistors Low Noise, Low Power I2C Bus, 256 Taps