DS1267BS-100+

Digital Potentiometers Overview

The DS1267BS-100+ is a dual digital potentiometer IC from the DS1267B series, manufactured by Analog Devices (Maxim Integrated). It features two independent 256-position solid-state potentiometers with an end-to-end resistance of 100 kΩ. The device utilizes a 3-wire serial interface for setting and reading wiper positions via an internal 17-bit I/O shift register. Operating on a single +5V supply within a -40°C to +85°C industrial temperature range, it supports stacked configurations for increased resistance or cascaded daisy-chain operations for multi-device control. The component is housed in a 16-pin SO package.

Digital Potentiometers Feature Summary

• Dual 256-position digitally controlled potentiometers with 100 kΩ nominal resistance
• 3-wire serial interface (RST, CLK, DQ) for data input and output
• Stacked configuration capability to double total resistance and resolution
• Cascading/daisy-chaining support via COUT pin for multiple device control

Digital Potentiometers Applications

• Inverting variable gain amplifier circuits
• Fixed gain attenuator applications
• Multi-channel signal conditioning systems requiring digital adjustment

Digital Potentiometers Procurement Notes

Verify the specific suffix 'S' confirms the 16-pin SO package variant rather than the TSSOP option. Confirm RoHS compliance status through official documentation as indicated by the '+' designation. Check current availability status as this component may be subject to discontinuation or limited stock depending on the distributor.

Digital Potentiometers Selection Notes

Select the DS1267BS-100+ when a 100 kΩ resistance value is required with a surface-mount 16-pin SO footprint. Ensure the application voltage does not exceed the recommended VCC range of 4.5V to 5.5V. Consider the DS1267BE-100+ if a 20-pin TSSOP package is preferred instead. Verify that the 3-wire serial protocol compatibility matches the host microcontroller's capabilities.

Digital Potentiometers Part Context

This part belongs to the DS1267B family of dual digital potentiometers. The 'BS' suffix denotes the 16-pin Small Outline (SO) package variant, distinguishing it from the 'BE' suffix which indicates a 20-pin Thin Shrink Small Outline Package (TSSOP). The '100' indicates the standard 100 kΩ resistance value. Other variants include 10 kΩ and 50 kΩ options within the same package types.

Digital Potentiometers Replacement Considerations

Direct replacements within the same package and resistance are the DS1267BS-010+ (10 kΩ) and DS1267BS-050+ (50 kΩ). For package changes, the DS1267BE-100+ offers identical electrical characteristics in a 20-pin TSSOP housing. Cross-family replacements require verification of pinout compatibility and serial interface timing.