DS1855B-050

Digital Potentiometers Overview

The DS1855B-050 is a dual nonvolatile digital potentiometer manufactured by Analog Devices Inc./Maxim Integrated. It features two independent potentiometers, each with 256 tap positions and a resistance value of 50 kOhms. The device utilizes a linear taper and communicates via a serial 2-wire interface. It operates on supply voltages of 3 V or 5 V, with a maximum power supply voltage of 5.5 V. The component supports surface mount installation in a TSSOP-14 package and functions within an operating temperature range of -40°C to +85°C.

Digital Potentiometers Feature Summary

• Dual nonvolatile digital potentiometers with 256 tap positions per channel
• 50 kOhms resistance value with linear taper
• Serial 2-wire digital interface for control
• Operating supply voltage range of 3 V to 5 V

Digital Potentiometers Applications

• Audio volume control circuits
• Programmable gain amplifier adjustments
• Voltage reference trimming
• Sensor calibration systems

Digital Potentiometers Procurement Notes

Verify the specific suffix 'B' against official datasheets, as standard listings often feature the 'E' variant. Confirm availability status directly with authorized distributors, as stock levels fluctuate. Ensure the TSSOP-14 package type matches the target PCB footprint. Validate RoHS compliance documentation prior to procurement.

Digital Potentiometers Selection Notes

Select this component when dual-channel nonvolatile adjustment is required without external memory. Compare the 50 kOhms resistance against circuit impedance requirements. Verify that the 256-step resolution meets the necessary precision for the application. Ensure the 3 V to 5 V operating voltage aligns with the system power rails.

Digital Potentiometers Part Context

This part belongs to the DS1855 series of digital potentiometers. It shares architectural similarities with the DS1856 and DS1859 series but differs in pin count and specific electrical characteristics. The series is designed for applications requiring persistent resistance settings after power loss.

Digital Potentiometers Replacement Considerations

The DS1855E-050+ is a documented variant within the same family. Verify if the 'E' suffix denotes a different temperature grade or manufacturing lot before substitution. Cross-reference pinouts to ensure compatibility.