DS1035Z-20/T&R

Overview

The DS1035Z-20 is a high-speed, low-power digital potentiometer manufactured by Analog Devices. It features two independent 64-position resistive elements with non-volatile memory (NVM) for wiper position storage. The device operates from a single supply voltage ranging from 2.7V to 5.5V and supports an I²C-compatible serial interface for control. Key electrical parameters include a wiper resistance tolerance of ±1% and a maximum wiper resistance of 1kΩ per element. The component is available in a compact 8-pin SOIC package and is designed for applications requiring precise analog signal adjustment with persistent settings.

Feature Summary

• Non-volatile memory retains wiper position data without power
• Dual-channel architecture allows independent control of two resistive elements
• I²C serial interface enables simple communication with microcontrollers

Applications

• Audio volume and tone control circuits
• Programmable gain amplifiers
• Voltage reference adjustment
• Sensor biasing and calibration

Procurement Notes

Verify the specific suffix 'T&R' indicates tape and reel packaging when ordering. Confirm the 'Z' designation aligns with RoHS compliance requirements for your assembly process. Ensure the operating temperature range meets your system specifications. Cross-reference the manufacturer's latest datasheet for any updates on recommended soldering profiles or handling precautions during procurement.

Selection Notes

Select this component when dual-channel digital adjustment with memory retention is required. Compare against competitors based on wiper resistance tolerance and interface compatibility. Consider the package size constraints and verify that the 64-step resolution meets the precision needs of the application. Evaluate power consumption levels relative to other devices in the same family.

Part Context

This part belongs to the DS1035 series of digital potentiometers. It shares architectural similarities with other Maxim Integrated digital pots but offers specific integration of NVM and dual channels. The series is commonly used in consumer electronics and industrial controls where space-saving and configuration persistence are critical design factors.

Replacement Considerations

Direct substitutes may include other dual-channel digital potentiometers with NVM such as the DS1803 series, though interface differences must be checked. Verify pinout compatibility before swapping. Alternative parts might require software modifications if the serial protocol differs.