SLIS135E December 2010  – February 2017

PRODUCTION DATA. 

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  6. Specifications
    1. 6.1Absolute Maximum Ratings
    2. 6.2ESD Ratings
    3. 6.3Recommended Operating Conditions
    4. 6.4Thermal Information
    5. 6.5Electrical Characteristics
    6. 6.6Operating Characteristics
    7. 6.7SPI Timing Requirements
    8. 6.8Typical Characteristics
  7. Detailed Description
    1. 7.1Overview
    2. 7.2Functional Block Diagram
    3. 7.3Feature Description
      1. 7.3.1Dual Channel, 256-Position Resolution
      2. 7.3.2Non-Volatile Memory
    4. 7.4Device Functional Modes
      1. 7.4.1Voltage Divider Mode
      2. 7.4.2Rheostat Mode
      3. 7.4.3Ideal Resistance Values
    5. 7.5Programming
      1. 7.5.1SPI Digital Interface
    6. 7.6Register Map
      1. 7.6.1Digital Interface Format
      2. 7.6.2Write-Wiper Register (Command 00)
      3. 7.6.3Write-NV Register (Command 01)
      4. 7.6.4Copy Wiper Register to NV Register (Command 10)
      5. 7.6.5Copy NV Register to Wiper Register (Command 11)
  8. Application and Implementation
    1. 8.1Application Information
    2. 8.2Typical Application
      1. 8.2.1Design Requirements
      2. 8.2.2Detailed Design Procedure
      3. 8.2.3Application Curve
  9. Power Supply Recommendations
    1. 9.1Power Sequence
    2. 9.2Wiper Position Upon Power Up
  10. 10Layout
    1. 10.1Layout Guidelines
    2. 10.2Layout Example
  11. 11Device and Documentation Support
    1. 11.1Documentation Support
      1. 11.1.1Related Documentation
    2. 11.2Receiving Notification of Documentation Updates
    3. 11.3Community Resources
    4. 11.4Trademarks
    5. 11.5Electrostatic Discharge Caution
    6. 11.6Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Features

  • Two Potentiometers With 256-Position Resolution
  • Non-Volatile Memory Stores Wiper Settings
  • 10-kΩ End-to-End Resistance (TPL0202-10)
  • Fast Power-Up Response Time: <100 µs
  • ±1 LSB INL, ±0.5 LSB DNL (Voltage-Divider Mode)
  • 12 ppm/°C Ratiometric Temperature Coefficient
  • SPI Serial Interface
  • 2.7 to 5.5 V Single-Supply Operation
  • Operating Temperature Range From
    –40°C to +105°C

Applications

  • Adjustable Gain Amplifiers and Offset Trimming
  • Adjustable Power Supplies
  • Precision Calibration of Set Point Thresholds
  • Sensor Trimming and Calibration
  • Mechanical Potentiometer Replacement

Description

The TPL0202 has two linear-taper digital potentiometers (DPOTs) with 256 wiper positions. Each potentiometer can be used as a three-terminal potentiometer or as a two-terminal rheostat. The TPL0202-10 has an end-to-end resistance of 10 kΩ.

This DPOT can be used as a mechanical potentiometer replacement, allowing the user (or software) to digitally control and adjust resistance.

The TPL0202 has non-volatile memory (EEPROM) which can be used to store the wiper position for automatic recall upon power-up. The internal registers of the TPL0202 can be accessed using a SPI-compatible digital interface.

Device Information(1)

PART NUMBERPACKAGEBODY SIZE (NOM)
TPL0202WQFN (16)3.00 mm × 3.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

TPL0202 fbd_LIS135.gif