DS1844-010+

Digital Potentiometers Overview

The DS1844-010+ is a quad digital potentiometer IC from Analog Devices/Maxim Integrated, featuring four independent 64-position linear potentiometers with a standard resistance of 10 kΩ. It operates on a supply voltage between 2.7 V and 5.5 V, consuming up to 2.5 mA in active mode. The device supports two serial interface options: a 5-wire shift register interface and a 2-wire addressable I²C-compatible interface, selectable via the PS pin. As a volatile component, it powers up with wipers at mid-tap (position 32). It is specified for industrial temperatures ranging from -40°C to +85°C and is available in 20-pin DIP, SOIC, and TSSOP packages.

Digital Potentiometers Feature Summary

• Four independent 64-position linear potentiometers with 10 kΩ end-to-end resistance
• Dual interface support: 5-wire serial shift register and 2-wire addressable bus
• Volatile memory with power-up wiper position set to mid-tap (32)
• Industrial temperature range operation (-40°C to +85°C)

Digital Potentiometers Applications

• Programmable gain amplifiers
• Digital trimming of analog circuits
• Voltage reference adjustment

Digital Potentiometers Procurement Notes

Verify package availability as the DS1844 series includes multiple form factors such as DIP, SOIC, and TSSOP. Confirm RoHS compliance status for specific ordering suffixes. Check lead times due to potential limited supply or obsolescence status associated with older Maxim Integrated product lines.

Digital Potentiometers Selection Notes

Select the DS1844-010+ when four independent 10 kΩ digitally controlled resistors are required. Choose the 5-wire interface for simple master-slave configurations without addressing complexity, or the 2-wire interface for multi-device bus systems. Ensure the application tolerates volatile storage, as wiper positions reset upon power loss.

Digital Potentiometers Part Context

The DS1844 belongs to the Maxim Integrated DS184x family of digital potentiometers. It serves as a quad-channel variant within this series, offering mixed resistor value combinations through custom setups. It complements other devices like the DS1845 and DS1847, which offer non-volatile memory features not present in the standard DS1844.

Digital Potentiometers Replacement Considerations

Direct replacements include other members of the DS1844 family with different resistance values (DS1844-050+, DS1844-100+) or package types. For non-volatile requirements, consider the DS1845E or DS1847 series.