DS1803E-050+

Digital Potentiometers Overview

The DS1803E-050+ is an addressable dual digital potentiometer featuring two independently controlled 256-position wipers. It operates on a 2-wire serial interface (SDA, SCL) with three hardware address inputs (A0-A2), allowing up to eight devices on a single bus. The device provides a total resistance of 50 kΩ with a linear taper and ±20% tolerance. Electrical specifications include a supply voltage range of 2.7 V to 5.5 V, active current consumption of 200 µA, and a temperature coefficient of 750 ppm/°C. Storage of wiper position is volatile.

Digital Potentiometers Feature Summary

• Dual 256-position potentiometers with 50 kΩ end-to-end resistance
• 2-Wire Serial Interface with hardware addressability for multi-device systems
• Volatile memory architecture requiring power-up initialization
• Industrial operating temperature range from -40°C to +85°C

Digital Potentiometers Applications

• Audio volume control circuits
• Programmable gain amplifier adjustment
• Voltage reference trimming
• System calibration and configuration

Digital Potentiometers Procurement Notes

Verify the component designation against the official Analog Devices datasheet to confirm the specific package type and resistance value. Ensure that system designs account for the volatile nature of the wiper positions, as values reset to zero upon power loss. Confirm lead-free compliance requirements match the '+' suffix specification.

Digital Potentiometers Selection Notes

Select this component when a low-power, addressable digital potentiometer is required for applications needing multiple independent adjustments. The 50 kΩ resistance value suits moderate impedance circuits. Designers must implement software logic to restore desired wiper positions after power cycling due to the non-volatile storage absence.

Digital Potentiometers Part Context

This part belongs to the DS1803 family of addressable digital potentiometers. Variants within the series offer different resistance values (10 kΩ, 100 kΩ) and packaging options including 16-pin DIP and 16-pin SOIC. The 'E' suffix specifically denotes the 14-pin TSSOP surface-mount package.

Digital Potentiometers Replacement Considerations

Direct replacements within the same family include DS1803Z-050+ (16-pin SOIC) or DS18030-050 (16-pin DIP). Cross-family substitution requires verification of pin compatibility and interface protocols.