DS1844E-010+

Digital Potentiometers Overview

The DS1844E-010+ is a quad digital potentiometer IC from Analog Devices/Maxim Integrated, featuring four independent 64-position linear potentiometers. It operates on a supply voltage of 2.7V to 5.5V with an active current of 2.5mA and standby current of 15µA at 3V. The device offers two interface options: a 5-wire serial port or a 2-wire addressable I²C-compatible bus. Each potentiometer has a resistance of 10kΩ with ±20% tolerance and a temperature coefficient of 750ppm/°C. It is housed in a 20-pin TSSOP package and functions within an industrial temperature range of -40°C to +85°C.

Digital Potentiometers Feature Summary

• Four independent 64-position digitally controlled linear potentiometers
• Dual interface support: 5-wire serial shift register or 2-wire addressable I/O
• Volatile memory architecture; wipers power up to mid-tap (position 32)
• Industrial operating temperature range (-40°C to +85°C)

Digital Potentiometers Applications

• Programmable gain amplifiers
• Digital volume control circuits
• Variable resistor replacement in calibration systems

Digital Potentiometers Procurement Notes

Verify the specific suffix 'E' for industrial temperature grade and '+' for lead-free compliance against the manufacturer's latest documentation. Confirm the package type matches the design requirements, as the DS1844 is available in DIP, SOIC, and TSSOP variants. Ensure the selected variant corresponds to the required resistance value, as the base model supports 10kΩ, 50kΩ, and 100kΩ options.

Digital Potentiometers Selection Notes

Select the DS1844E-010+ when four independent channels are required. Note that this component is volatile; it does not retain wiper positions after power loss, initializing to mid-scale upon startup. Choose between 5-wire or 2-wire interfaces based on system pin availability and addressing needs. Verify that the 10kΩ resistance value aligns with the target circuit impedance requirements.

Digital Potentiometers Part Context

The DS1844 belongs to the Maxim Integrated digital potentiometer family. The 'E' suffix denotes the extended industrial temperature range (-40°C to +85°C). The '010' indicates a nominal end-to-end resistance of 10kΩ. This quad configuration allows for multi-channel signal conditioning within a single integrated circuit.

Digital Potentiometers Replacement Considerations

Direct functional replacements include other quad digital potentiometers from the same manufacturer series, such as the DS1845 or DS1847, provided they match the interface protocol and package constraints. Cross-vendor equivalents require verification of pin compatibility and electrical specifications.