MAX5161LEZT

Overview

The MAX5161LEZT is a low-power digital potentiometer IC manufactured by Analog Devices Inc./Maxim Integrated. It features a single circuit with 32 tap positions and a resistance value of 50 kOhms. The device utilizes an Increment/Decrement control interface requiring U/D, INC, and CS signals. It operates within a temperature range of -40°C to +85°C and is housed in a TSOT-23-6 package.

Feature Summary

• Single-channel digital potentiometer with 50 kOhm resistance
• 32 discrete tap positions for adjustment
• Increment/Decrement (U/D, INC, CS) serial control interface
• Low-power operation suitable for battery applications

Applications

• Battery-powered portable equipment
• Consumer electronics requiring volume or tone control
• Industrial process control systems
• Programmable gain amplifier circuits

Procurement Notes

Verify the manufacturer designation, as listings may attribute the part to Maxim Integrated or Analog Devices Inc. due to corporate acquisition history. Confirm the specific suffix 'LEZT' corresponds to the TSOT-23-6 package and lead-free status. Ensure compatibility with the required 50 kOhm resistance and 32-position resolution for the target design.

Selection Notes

Select this component when a compact SOT-23 form factor is required for digital resistance adjustment. The Increment/Decrement interface is distinct from SPI or I2C protocols; verify that the host microcontroller supports the necessary three-wire control signaling. The 50 kOhm value and 32 taps offer moderate resolution; consider higher-resolution alternatives if finer step adjustments are critical.

Part Context

This component belongs to the MAX5161 family of low-power digital potentiometers. It serves as a solid-state replacement for mechanical potentiometers in space-constrained designs. The LEZT suffix indicates the specific tape-and-reel packaging and environmental compliance for surface-mount assembly.

Replacement Considerations

The AD5161 series offers similar functionality but typically utilizes SPI or I2C interfaces rather than Increment/Decrement. Direct pin-to-pin substitution requires verifying interface compatibility. Other Maxim digital pots like the DS1802 series provide comparable resistance ranges but may differ in package size or power consumption characteristics.