The MCP42050 is a single-channel, 8-bit digital potentiometer features 50kΩ end-to-end resistance value with an SPI serial interface. The wiper position varies linearly and is controlled via the SPI interface. The MCP42050 has outstanding AC and DC characteristics, and consumes <1 µA during static operation. Applications for the MCP42050 digital potentiometer include audio equipment (volume and tone controls), servo-motor control, battery charging and control, communications (line impedance matching), power supplies, instrumentation (gain, offset adjust), LCD contrast control and programmable filters. The MCP42050 is available in 8-pin PDIP and SOIC packages.

• Two Resistor Networks
• Potentiometer or Rheostat configuration options
• Resistor Network Resolution
  • 8-bit: 255 Resistors (256 Steps)
• RAB Resistances options of:
  • 50kΩ
• Zero-Scale to Full-Scale Wiper operation
• INL: 1LSB (max)
• DNL: 1LSB (max)
• SPI Compatible Serial interface
• Standby current: 1uA (max)
• Wide Operating Voltage: 2.7V to 5.5V
• Wide Bandwidth (-3dB) Operation: 280 MHz (typ.)
• Extended temperature range: -40°C to +125°C