DS1267B:Dual Digital Potentiometer

2-Channel 256-Position Digital Potentiometer Operates from a Single +5V or Dual ±5V Supply

The DS1267B has two 256-position potentiometers, with wiper positions each set by stored 8-bit values. The DS1267B communicates through a 3-wire serial port interface that drives an internal control logic unit. Multiple DS1267Bs can be linked or daisy-chained for control by a single processor. The DS1267B dual digital potentiometer replaces the DS1267, which has been discontinued. The device is designed for flexibility, operating from a single +5V or dual ±5V supply. Maximum standby current is only 2µA. Digital potentiometers improve upon mechanical devices with processor control and programmability, greater reliability and accuracy, and packaging options that facilitate automatic assembly. They are used for signal control in modems and phones, battery charging and control circuitry, tuning and calibration, offset trimming of operational amplifiers, gain control, and power-supply regulation.

Key Features
  • Two 256-Step (or 8-Bit) Digital Potentiometers
  • Stacking Configures Device as One 512-Step (or 9-Bit) Digital Potentiometer
  • Wipers Digitally Set and Read Through Serial Port
  • 3-Wire Serial Control Interface
  • Operating Ranges
    • Single +5V or ±5V Supplies
    • -40°C to +85°C
DS1267B: Block Diagram
DS1267B: Block Diagram
Applications/Uses
  • Impedance Matching
  • Mechanical Potentiometer Replacement
  • Offset and Gain Control
  • Programmable Filters, Delays, Time Constant
DataSheet
titleDownload file
DS1267B Data SheetDS1267B.pdf
Parametrics
Part NumberTaperPOTsControl InterfaceWiper MemoryStepsREND-TO-END
(kΩ)
Res. Tol.
(%)
Temp. Coeff.
(ppm/°C)
Wiper Resistance
(Ω)
ICC @5V
(µA)
Package/PinsBudgetary
Price
typtypmaxSee Notes
DS1267BLinear23-Wire Serial SPIVolatile25610207509002SOIC(W)/16
TSSOP/20
$3.47 @1k
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
DS1267BE-010+ActiveTSSOP,;20 pin;45.2 mm²-40°C to +85°CLead Free
DS1267BE-010+T/RActiveTSSOP,;20 pin;45.2 mm²-40°C to +85°CLead Free
DS1267BE-050+ActiveTSSOP,;20 pin;45.2 mm²-40°C to +85°CLead Free
DS1267BE-050+T/RActiveTSSOP,;20 pin;45.2 mm²-40°C to +85°CLead Free
DS1267BE-100+ActiveTSSOP,;20 pin;45.2 mm²-40°C to +85°CLead Free
DS1267BE-100+T/RActiveTSSOP,;20 pin;45.2 mm²-40°C to +85°CLead Free
DS1267BS-010+ActiveSOIC(W),;16 pin;111.8 mm²-40°C to +85°CLead Free
DS1267BS-010+T/RActiveSOIC(W),;16 pin;111.8 mm²-40°C to +85°CLead Free
DS1267BS-050+ActiveSOIC(W),;16 pin;111.8 mm²-40°C to +85°CLead Free
DS1267BS-050+T/RActiveSOIC(W),;16 pin;111.8 mm²-40°C to +85°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
DS1267BS-100+ActiveSOIC(W),;16 pin;111.8 mm²-40°C to +85°CLead Free
DS1267BS-100+T/RActiveSOIC(W),;16 pin;111.8 mm²-40°C to +85°CLead Free
DS1267B.pdf DS1267B
DS1267B.pdf DS1267B
DS1267B.pdf DS1267B
DS1267B.pdf DS1267B
DS1267B.pdf DS1267B