Overview
The TPL0102-100RUCR is a dual-channel digital potentiometer produced by Texas Instruments. This component features two linear-taper digital potentiometers (DPOTs) with 256 wiper positions, allowing for precise control over resistance. Each potentiometer can be used as a three-terminal potentiometer or as a two-terminal rheostat. The device includes non-volatile memory (EEPROM) to store the wiper settings, ensuring that the last configuration is retained even during power-off and automatically reinstated upon power-on. The TPL0102-100RUCR operates with an I2C-compatible serial interface and is available in a 14-pin X2QFN (RUC) package.
Key Specifications
| Specification | Value |
|---|---|
| End-to-End Resistance | 100 kΩ |
| Wiper Positions | 256 |
| Operating Voltage | 2.7 V to 5.5 V (Single-Supply), ±2.25 V to ±2.75 V (Dual-Supply) |
| Operating Temperature Range | –40°C to 85°C |
| Package Type | 14-pin X2QFN (RUC), 14-pin TSSOP |
| Interface | I2C-compatible Serial Interface |
| Power-up Response Time | <100 µs |
| ESD Performance | 2000-V Human Body Model (A114-B, Class II), 1000-V Charged-Device Model (C101) |
Key Features
- Two linear-taper digital potentiometers with 256 wiper positions
- Non-volatile memory (EEPROM) to store wiper settings
- Fast power-up response time to wiper setting: <100 µs
- ±0.5 LSB INL, ±0.25 LSB DNL (Voltage-Divider Mode)
- 4 ppm/°C Ratiometric Temperature Coefficient
- I2C-compatible serial interface
- Shutdown mode
- ESD performance tested per JESD 22
Applications
- Adjustable gain amplifiers and offset trimming
- Adjustable power supplies
- Precision calibration of set point thresholds
- Sensor trimming and calibration
- Mechanical potentiometer replacement
Q & A
- What is the end-to-end resistance of the TPL0102-100RUCR?
The end-to-end resistance is 100 kΩ. - How many wiper positions does each potentiometer have?
Each potentiometer has 256 wiper positions. - What type of interface does the TPL0102-100RUCR use?
The device uses an I2C-compatible serial interface. - What is the operating temperature range of the TPL0102-100RUCR?
The operating temperature range is from –40°C to 85°C. - Does the TPL0102-100RUCR have non-volatile memory?
Yes, it has non-volatile memory (EEPROM) to store the wiper settings. - What are some common applications of the TPL0102-100RUCR?
Common applications include adjustable gain amplifiers, adjustable power supplies, precision calibration, sensor trimming, and mechanical potentiometer replacement. - What is the power-up response time of the TPL0102-100RUCR?
The power-up response time to the wiper setting is less than 100 µs. - What package types are available for the TPL0102-100RUCR?
The device is available in 14-pin X2QFN (RUC) and 14-pin TSSOP packages. - Does the TPL0102-100RUCR have ESD protection?
Yes, it has ESD performance tested per JESD 22. - Can the TPL0102-100RUCR be used in shutdown mode?
Yes, it has a shutdown mode.
