MCP41010T-E/SN

Digital Potentiometers Overview

The MCP41010T-E/SN is a single-channel, 8-bit volatile digital potentiometer manufactured by Microchip Technology. It features a nominal end-to-end resistance of 10 kΩ with 256 discrete tap positions controlled via an SPI serial interface. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V and supports industrial temperature specifications from -40°C to +125°C. Key electrical characteristics include a maximum static supply current of 1 µA, ±1 LSB integral and differential non-linearity, and a typical wiper resistance of 52 Ω at 5 V. The component is housed in an 8-pin SOIC package.

Digital Potentiometers Feature Summary

• Single-channel 8-bit resolution with 256 linear tap positions
• SPI serial interface supporting Mode (0,0) and Mode (1,1)
• Extended industrial temperature range: -40°C to +125°C
• Software shutdown feature disconnects Terminal A for power savings

Digital Potentiometers Applications

• Audio equipment volume and tone control
• Servo motor control systems
• Battery charging and management circuits
• Communication line impedance matching
• Instrumentation gain and offset adjustment

Digital Potentiometers Procurement Notes

Verify the 'E' suffix indicates the extended temperature grade (-40°C to +125°C) compared to the standard industrial grade ('I'). Confirm the 'T' suffix denotes tape-and-reel packaging. Ensure the 'SN' suffix corresponds to the 8-lead SOIC package. Cross-reference the specific datasheet revision DS11195C for any updates to electrical parameters or pin configurations before finalizing procurement.

Digital Potentiometers Selection Notes

Select this component when a single-channel digital potentiometer with SPI control is required. The 10 kΩ resistance value suits applications needing moderate current handling. The extended temperature rating makes it suitable for harsh environments where standard industrial grades may fail. Verify that the system voltage falls within the 2.7 V to 5.5 V range and that the SPI clock frequency does not exceed 10 MHz.

Digital Potentiometers Part Context

This part belongs to the MCP41XXX family of single-channel digital potentiometers. It shares the same core architecture and pinout as the MCP41010-I/SN but differs in the operating temperature range. The 'T' prefix typically indicates reel packaging for automated assembly, while 'SN' specifies the SOIC footprint. It is distinct from the dual-channel MCP42XXX series, which includes additional pins for hardware shutdown and daisy-chaining.

Digital Potentiometers Replacement Considerations

The MCP41010-I/SN serves as a direct functional substitute if the extended temperature range is not critical. Other members of the MCP41XXX family, such as MCP41050 or MCP41100, offer different resistance values (50 kΩ or 100 kΩ) but maintain identical pinouts and control interfaces.