DS1803Z-010/T&R

Digital Potentiometers Overview

The DS1803Z-010/T&R is an addressable dual digital potentiometer manufactured by Analog Devices/Maxim Integrated. It features two independently controlled 256-position potentiometers with a total resistance of 10 kΩ per channel. The device operates on a 2-wire serial interface (I²C compatible) and utilizes three address pins to allow up to eight units on the same bus. Power consumption is ultra-low, drawing 200 µA active current at 3V or 5V. It is housed in a 16-pin SOIC package and functions within an industrial temperature range of -40°C to +85°C. The wiper position is volatile and resets to zero upon power-up.

Digital Potentiometers Feature Summary

• Dual 256-position digitally controlled potentiometers
• 10 kΩ standard resistance value per channel
• 2-wire serial interface with addressable slave addressing
• Ultra-low power operation: 200 µA active, 40 µA standby

Digital Potentiometers Applications

• Volume control in audio circuits
• Programmable gain amplifier adjustment
• Voltage reference trimming
• Industrial sensor calibration

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix for tape-and-reel packaging requirements. Confirm lead-free status if RoHS compliance is mandatory for the assembly process. Ensure the master controller supports the required I²C protocol timing for fast mode operations.

Digital Potentiometers Selection Notes

Select this component when dual independent resistance control is required via a serial bus. The 10 kΩ value suits moderate impedance applications. Consider the volatile nature of the wiper position; external non-volatile memory is needed to retain settings across power cycles.

Digital Potentiometers Part Context

This part belongs to the DS1803 family of addressable digital potentiometers. The 'Z' suffix denotes the 16-pin SOIC package, while '010' indicates the 10 kΩ resistance value. The '/T&R' suffix specifies the tape and reel shipping format.

Digital Potentiometers Replacement Considerations

DS1803E-010/T&R offers identical electrical specifications but uses a 14-pin TSSOP package instead of the 16-pin SOIC. Verify pinout compatibility before substitution.