MCP4162T-104E/MS

Digital Potentiometers Overview

The MCP4162T-104E/MS is a single-channel, non-volatile digital potentiometer IC manufactured by Microchip Technology. It features an 8-bit resolution providing 257 discrete wiper positions and a nominal resistance (R_AB) of 100 kΩ. The device operates on a supply voltage range of 2.7V to 5.5V for full analog specifications, with serial interface functionality supported down to 1.8V. It utilizes a standard SPI interface operating at frequencies up to 10 MHz. Key features include WiperLock™ technology for securing calibration settings in EEPROM, high-voltage tolerant digital inputs up to 12.5V, and a rheostat configuration. The component is housed in an 8-pin MSOP package.

Digital Potentiometers Feature Summary

• Non-volatile memory with WiperLock™ technology for automatic recall of saved wiper settings.
• High-voltage tolerant digital inputs capable of withstanding up to 12.5V.
• SPI serial interface supporting modes 0,0 and 1,1 with clock speeds up to 10 MHz.
• Single rheostat configuration with 8-bit resolution (257 taps) and 100 kΩ nominal resistance.

Digital Potentiometers Applications

• Industrial process control systems requiring precise resistance adjustment.
• Audio equipment for gain control and volume adjustment.
• Test and measurement instruments needing programmable attenuation.
• Power supply regulation circuits utilizing variable resistance feedback.

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix 'T' indicates tape-and-reel packaging and '/MS' confirms the MSOP-8 package type. Confirm that the '-104E' designation corresponds to the 100 kΩ resistance value and industrial temperature grade. Ensure compatibility with the host system's SPI voltage levels, noting the 1.8V minimum for digital logic operation versus the 2.7V requirement for full analog performance.

Digital Potentiometers Selection Notes

Select this component when a single-channel, non-volatile digital rheostat is required. The 100 kΩ resistance value suits applications demanding higher impedance networks. The MSOP-8 package is appropriate for space-constrained surface-mount designs. Consider the 12.5V input tolerance if interfacing directly with higher voltage logic lines without level shifting.

Digital Potentiometers Part Context

This part belongs to the MCP416X family of single-channel digital potentiometers. It shares architectural similarities with the MCP414X series but offers higher 8-bit resolution compared to the 7-bit MCP414X devices. It differs from the MCP426X series by providing only a single resistor network instead of dual channels.

Digital Potentiometers Replacement Considerations

Direct functional substitutes within the same package include other variants from the MCP416X family, such as MCP4162T-103E/MS (10 kΩ) or MCP4162T-503E/MS (50 kΩ). Cross-family replacements like the MCP4142 series offer similar functionality but with 7-bit resolution.