DS1856E-M50+

Digital Potentiometers Overview

The DS1856E-M50+ is a dual, temperature-controlled, nonvolatile variable resistor IC featuring three analog monitors and an integrated digital thermometer. It contains two linear 256-position variable resistors with a nominal resistance of 50kΩ. The device operates from a 3.3V or 5V supply (2.85V to 5.5V range) and communicates via a 2-wire serial interface. Key electrical parameters include a typical supply current of 2mA, a 13-bit ADC resolution for monitoring inputs, and an operating temperature range of -40°C to +95°C.

Digital Potentiometers Feature Summary

• Dual 256-position linear variable resistors with temperature-addressed lookup tables
• Three analog monitor inputs (MON1, MON2, MON3) and internal temperature sensor with 13-bit ADC
• Two-level password protection for memory access security
• SFF-8472 compatible with configurable device addresses

Digital Potentiometers Applications

• Optical transceivers
• Optical transponders
• RF power amplifiers
• Instrumentation and industrial controls

Digital Potentiometers Procurement Notes

Verify the specific suffix 'M50+' against the official datasheet to confirm the inclusion of enhanced features such as the 13-bit ADC and selectable monitor references compared to legacy variants. Ensure the required EEPROM capacity at address A0h aligns with system design needs. Confirm RoHS compliance status through manufacturer documentation prior to procurement.

Digital Potentiometers Selection Notes

Select this component when dual independent temperature-compensated resistors are required alongside precise voltage and temperature monitoring. The 50kΩ resistance value suits bias control applications. Verify that the 2-wire serial interface timing requirements fit the host controller's capabilities and that the TSSOP-16 package fits the PCB layout constraints.

Digital Potentiometers Part Context

The DS1856E-M50+ belongs to the DS1856M family, which enhances previous generations like the DS1856E-050+. It serves as a drop-in replacement for older models while adding advanced monitoring capabilities. This part is manufactured by Analog Devices Inc./Maxim Integrated and targets high-reliability communication infrastructure applications.

Digital Potentiometers Replacement Considerations

The DS1856B-M50+ is a confirmed substitute for the DS1856B-050+. For the DS1856E-M50+, verify backward compatibility with existing designs using the DS1856E-050+. Check pinout and register map consistency before swapping to ensure functional equivalence in the target application.