6-Channel, 256-Position Digital Potentiometer Features: 256 positions Multiple independently programmable channels AD5204—4-channel AD5206—6-channel Potentiometer replacement Terminal resistance of 10 kΩ, 50 kΩ, 100 kΩ 3-wire SPI-compatible serial data input +2.7 V to +5.5 V single-supply operation; ±2.7 V dual-supply operation Power-on midscale preset