Overview
The TPL0401A-10-Q1 is a single-channel, linear-taper digital potentiometer produced by Texas Instruments. This device features 128 wiper positions and an end-to-end resistance of 10 kΩ. It operates in voltage divider mode and is widely used in applications such as setting the voltage reference for low power DDR3 memory. The potentiometer has its low terminal internally connected to GND, and the wiper position can be adjusted using an I2C serial interface. The device is available in a 6-pin SC70 package and supports a supply voltage range of 2.7 V to 5.5 V, with an operating temperature range of –40°C to +125°C.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| End-to-End Resistance (RTOTAL) | 8 | 10 | 12 | kΩ |
| Terminal Resistance (RH) | 100 | 200 | Ω | |
| Wiper Resistance (RW) | 35 | 100 | Ω | |
| Supply Voltage (VDD) | 2.7 | 5.5 | V | |
| Ambient Operating Temperature (TA) | –40 | 125 | °C | |
| I2C Address | 010 1110 (0×2E) | |||
| Temperature Coefficient | 22 | ppm/°C |
Key Features
- Single-channel, 128-position resolution
- 10 kΩ end-to-end resistance options
- Low temperature coefficient: 22 ppm/°C
- I2C serial interface
- 2.7-V to 5.5-V single-supply operation
- ±20% resistance tolerance
- A and B versions have different I2C addresses
- L terminal is internal and 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
- Mechanical potentiometer replacement
- Adjustable power supplies
- Adjustable gain amplifiers and offset trimming
- Precision calibration of setpoint thresholds
- Sensor trimming and calibration
- Setting the voltage reference for low power DDR3 memory
Q & A
- What is the end-to-end resistance of the TPL0401A-10-Q1?
The end-to-end resistance of the TPL0401A-10-Q1 is 10 kΩ, with a tolerance range of 8 kΩ to 12 kΩ.
- What is the operating voltage range of the TPL0401A-10-Q1?
The device operates with a supply voltage range of 2.7 V to 5.5 V.
- How is the wiper position adjusted in the TPL0401A-10-Q1?
The wiper position can be adjusted using an I2C serial interface.
- What is the temperature coefficient of the TPL0401A-10-Q1?
The temperature coefficient is 22 ppm/°C.
- What package type is the TPL0401A-10-Q1 available in?
The device is available in a 6-pin SC70 package.
- What are the typical applications of the TPL0401A-10-Q1?
Typical applications include mechanical potentiometer replacement, adjustable power supplies, adjustable gain amplifiers, precision calibration, and sensor trimming.
- What is the I2C address of the TPL0401A-10-Q1?
The I2C address of the TPL0401A-10-Q1 is 010 1110 (0×2E).
- What is the operating temperature range of the TPL0401A-10-Q1?
The operating temperature range is –40°C to +125°C.
- Does the TPL0401A-10-Q1 have ESD protection?
Yes, the device has ESD performance tested per JESD 22 – 2000-V Human-Body Model (A114-B, Class II).
- How many wiper positions does the TPL0401A-10-Q1 have?
The device has 128 wiper positions.
