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Texas Instruments TPL0401A / TPL0401B Digital Potentiometers

Texas Instruments TPL0401A and TPL0401B 128 TAPS Single-Channel Digital Potentiometers with I2C Interface are linear-taper devices with 128 wiper positions. TI TPL0401 Digital Potentiometers feature 10kΩ end-to-end resistance options and 2.7V to 5.5V single-supply operation. The TPL0401A and TPL0401B have the low terminal internal and are connected to GND. The position of the wiper can be adjusted using an I2C interface. The Texas Instruments TPL0401A and TPL0401B Digital Potentiometers are designed for use in setting the voltage reference for low power DDR3 memory.

Features

  • Single Channel, 128-Position Resolution
  • 10kΩ End-to-End Resistance Options
  • Low Temperature Coefficient: 35ppm/°C
  • I2C Serial Interface
  • 2.7V to 5.5V Single-Supply Operation
  • ±20% Resistance Tolerance
  • "A" and "B" Versions Have Different I2C Addresses
    • TPL0401A (0101110)
    • TPL0401B (0111110)
  • "L" Terminal Connected To GND
  • Operating Temperature -40°C to 125°C
  • Available in Industry Standard SC70 Packages
  • ESD Performance Tested per JESD 22
  • 2000 V Human Body Model (A114-B, Class II)

Applications

  • Low Power DDR3 Voltage Reference
  • Adjustable Power Supplies
  • Adjustable Gain Amplifiers and Offset Trimming
  • Precision Calibration of SetPoint Thresholds
  • Sensor Trimming and Calibration
  • Mechanical Potentiometer Replacement

Functional Diagram

Block Diagram - Texas Instruments TPL0401A / TPL0401B Digital Potentiometers
Veröffentlichungsdatum: 2012-02-29 | Aktualisiert: 2025-12-15