MCP4162-103E/P

Digital Potentiometers Overview

The MCP4162-103E/P is a single-channel digital potentiometer IC featuring non-volatile memory and an SPI serial interface. It provides 257 wiper steps (8-bit resolution) with a nominal resistance of 10 kΩ between terminals A and B. The device operates within a supply voltage range of 2.7V to 5.5V, supporting high-voltage tolerant digital inputs up to 12.5V. Key electrical characteristics include a typical wiper resistance of 75 Ω, a bandwidth of 1 MHz at 10 kΩ, and an operating temperature range from -40°C to +125°C. It utilizes WiperLock technology for secure calibration storage.

Digital Potentiometers Feature Summary

• Single resistor network with 257 taps (8-bit resolution) and 10 kΩ nominal resistance
• Non-volatile EEPROM memory with WiperLock technology for automatic recall of settings
• SPI serial interface supporting 10 MHz operation in modes 0,0 and 1,1
• High-voltage tolerant digital inputs capable of withstanding up to 12.5V

Digital Potentiometers Applications

• Gain control in audio processing circuits
• Programmable voltage reference adjustment
• Calibration of sensor signal conditioning paths
• Variable gain amplifier configuration

Digital Potentiometers Procurement Notes

Verify the package designation 'P' corresponds to the 8-pin PDIP format required for the specific PCB layout. Confirm that the system design accommodates the extended temperature range specifications (-40°C to +125°C) if operating in harsh environments. Ensure the SPI controller supports the required clock frequencies and protocol modes.

Digital Potentiometers Selection Notes

Select this component when a single-channel rheostat or potentiometer configuration with persistent memory is required. The 10 kΩ value suits moderate impedance applications. Consider the PDIP package only if through-hole mounting is necessary; otherwise, SOIC or MSOP variants offer surface-mount alternatives. Verify that the 12.5V input tolerance meets the logic level requirements of the controlling microcontroller.

Digital Potentiometers Part Context

This part belongs to the MCP414X/416X family of single/dual SPI digital potentiometers with non-volatile memory. The '62' suffix indicates a single rheostat configuration with 8-bit resolution. The '103' code specifies the 10 kΩ resistance value. It shares the core architecture with volatile counterparts like the MCP4152 but adds EEPROM retention capabilities.

Digital Potentiometers Replacement Considerations

Direct functional substitutes within the same family include the MCP4162-104E/P (100 kΩ) or MCP4162-503E/P (50 kΩ). For rheostat-only applications without non-volatile memory, the MCP4152-103E/P may serve as a volatile alternative.