Overview
The TMP125AIDBVT, produced by Texas Instruments, is a highly accurate digital temperature sensor designed for a wide range of applications. It features an SPI-compatible interface and is packaged in a compact SOT23-6 package. This sensor requires no external components for operation, making it ideal for low-power and space-constrained applications. The TMP125AIDBVT is capable of measuring temperatures with an accuracy of ±2.0°C from −25°C to +85°C and ±2.5°C from −40°C to +125°C, with a resolution of 0.25°C per bit.
Key Specifications
| Parameter | Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|
| Temperature Input Range | −40 | +125 | °C | ||
| Accuracy (temperature error) | −25°C to +85°C | ±0.5 | ±2.0 | °C | |
| Accuracy (temperature error) | −40°C to +125°C | ±1.0 | ±2.5 | °C | |
| Resolution | 10 | Bits | |||
| Temperature Measurement Noise | 0.1 | LSB | |||
| Supply Voltage Range | 2.7V | 5.5V | V | ||
| Quiescent Current (Active) | 50µA | µA | |||
| Quiescent Current (Analog Shutdown) | 1µA | µA | |||
| Conversion Time | 60ms | ms | |||
| Update Rate | 120ms | ms |
Key Features
- SPI-Compatible Interface: The TMP125AIDBVT communicates through an SPI-compatible serial interface, allowing for easy integration into various systems.
- High Resolution: The sensor offers a 10-bit resolution with 0.25°C per bit, providing precise temperature measurements.
- Low Power Consumption: With a quiescent current of 50µA (max) during active conversion and 1µA during analog shutdown, it is ideal for low-power applications.
- Wide Supply Range: Operates within a supply voltage range of 2.7V to 5.5V, making it versatile for different power supply conditions.
- Compact Package: Packaged in a tiny SOT23-6 package, it is suitable for space-constrained designs.
- No External Components Required: The sensor does not require any external components for operation, though a 0.1µF supply bypass capacitor is recommended.
- Hardware Shutdown: Features a hardware shutdown mode to reduce power consumption further.
Applications
- Base Station Equipment: Ideal for thermal management in base station equipment.
- Computer Peripheral Thermal Protection: Used in computer peripherals for thermal protection.
- Notebook Computers: Suitable for temperature monitoring in notebook computers.
- Data Acquisition Systems: Used in data acquisition systems for precise temperature measurements.
- Telecom Equipment: Applied in telecom equipment for thermal monitoring.
- Office Machines: Used in office machines to ensure optimal operating temperatures.
Q & A
- What is the temperature accuracy of the TMP125AIDBVT?
The TMP125AIDBVT has a temperature accuracy of ±2.0°C from −25°C to +85°C and ±2.5°C from −40°C to +125°C.
- What is the resolution of the TMP125AIDBVT?
The sensor has a 10-bit resolution with 0.25°C per bit.
- What is the supply voltage range of the TMP125AIDBVT?
The TMP125AIDBVT operates within a supply voltage range of 2.7V to 5.5V.
- How much quiescent current does the TMP125AIDBVT consume?
The quiescent current is 50µA (max) during active conversion and 1µA during analog shutdown.
- What is the conversion time and update rate of the TMP125AIDBVT?
The conversion time is 60ms, and the temperature data is updated every 120ms.
- Does the TMP125AIDBVT require any external components for operation?
No, the TMP125AIDBVT does not require any external components for operation, though a 0.1µF supply bypass capacitor is recommended.
- What is the communication interface of the TMP125AIDBVT?
The TMP125AIDBVT communicates through an SPI-compatible serial interface.
- What are the typical applications of the TMP125AIDBVT?
The TMP125AIDBVT is used in base station equipment, computer peripheral thermal protection, notebook computers, data acquisition systems, telecom equipment, and office machines.
- How does the TMP125AIDBVT enter and exit shutdown mode?
To enter shutdown mode, SI must be high on the rising edge of the third bit of SCK. To exit shutdown, perform a 16-clock communication with SI set to logic low.
- What is the package type and size of the TMP125AIDBVT?
The TMP125AIDBVT is packaged in a tiny SOT23-6 package with dimensions of 2.9 mm x 1.6 mm x 1.45 mm.
