DS1803E-50+T&R

Digital Potentiometers Overview

The DS1803E-50+T&R is an addressable dual digital potentiometer manufactured by Analog Devices Inc./Maxim Integrated. It features two independently controlled 256-position potentiometers with a standard resistance value of 50kΩ. The device operates on a 3V or 5V supply and communicates via a 2-wire serial interface. Three address inputs allow up to eight devices to share the same bus. It is housed in a 14-pin TSSOP package and supports industrial temperature ranges from -40°C to +85°C.

Digital Potentiometers Feature Summary

• Two digitally controlled, 256-position potentiometers
• Addressable using three chip select inputs (A0, A1, A2)
• 2-wire serial interface for data transfer
• Industrial operating temperature range: -40°C to +85°C

Digital Potentiometers Applications

• Volume control in audio systems
• Gain adjustment in instrumentation circuits
• Voltage reference setting in power supplies
• Calibration of sensor signals

Digital Potentiometers Procurement Notes

Verify the ordering suffix '+T&R' indicates lead-free construction and tape-and-reel packaging as specified in the manufacturer's ordering information. Confirm the 'E' suffix corresponds to the 14-pin TSSOP package variant. Ensure compatibility with the required 50kΩ resistance value for the specific application design.

Digital Potentiometers Selection Notes

Select this component when two independent digital potentiometers are required on a single IC with I2C-compatible serial control. The 50kΩ resistance value suits applications requiring moderate current handling. Consider the volatile nature of the wiper position, which resets to zero upon power-up, if non-volatile storage is needed.

Digital Potentiometers Part Context

The DS1803 series includes variants with 10kΩ, 50kΩ, and 100kΩ resistances. The 'E' suffix denotes the 14-pin TSSOP package, while 'Z' denotes the 16-pin SOIC package. The '+' suffix indicates lead-free compliance, and 'T&R' specifies tape-and-reel delivery. All variants share identical electrical characteristics and functionality.

Digital Potentiometers Replacement Considerations

Direct pin-to-pin replacements include other DS1803 variants with different resistance values (DS1803E-010+T&R, DS1803E-100+T&R) if the resistance value can be adjusted in the circuit design. No other manufacturers' parts are confirmed as direct substitutes in the provided documentation.