Overview
The LM95071CIMFX from Texas Instruments is a low-power, high-resolution digital temperature sensor designed to operate within a wide temperature range. It features an SPI and MICROWIRE compatible interface, making it versatile for integration with various microcontrollers and processors. The sensor is housed in a compact 5-pin SOT-23 package, which saves space in designs. Its low operating current and shutdown mode make it ideal for applications where power consumption is critical.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 2.4 V to 5.5 V | V |
| Operating Supply Current | 280 µA (typical) | µA |
| Shutdown Supply Current | 6 µA (typical) | µA |
| Temperature Accuracy (0°C to 70°C) | ±1°C (maximum) | °C |
| Temperature Accuracy (−40°C to 150°C) | ±2°C (maximum) | °C |
| Temperature Resolution | 0.03125°C | °C |
| Temperature Conversion Time | 228 ms (maximum) | ms |
| Package Type | 5-pin SOT-23 | |
| Body Size | 2.90 mm × 1.60 mm | mm |
Key Features
- Small SOT-23 package saves space.
- Shutdown mode conserves power between temperature readings.
- Operates over a full −40°C to +150°C range.
- SPI and MICROWIRE bus interface for easy communication with microcontrollers and processors.
- 13-bit plus sign temperature resolution (0.03125°C per LSB).
- Tight accuracy and fine resolution for precise temperature measurements.
- Low output noise, making it suitable for stable thermal compensation applications.
Applications
- System thermal management.
- Portable electronic devices.
- Personal computers.
- Disk drives.
- Office electronics.
- Electronic test equipment.
Q & A
- What is the operating temperature range of the LM95071? The LM95071 operates over a temperature range of −40°C to +150°C.
- What is the typical operating supply current of the LM95071? The typical operating supply current is 280 µA.
- How does the shutdown mode conserve power? The shutdown mode reduces the supply current to 6 µA (typical), significantly conserving power between temperature readings.
- What is the temperature resolution of the LM95071? The temperature resolution is 0.03125°C.
- What interfaces does the LM95071 support? The LM95071 supports SPI and MICROWIRE bus interfaces.
- What is the package type and size of the LM95071? The LM95071 is packaged in a 5-pin SOT-23 with a body size of 2.90 mm × 1.60 mm.
- How accurate is the temperature measurement of the LM95071? The temperature accuracy is ±1°C (maximum) from 0°C to 70°C and ±2°C (maximum) from −40°C to 150°C.
- What is the typical conversion time for the LM95071? The typical conversion time is 228 ms (maximum).
- Can the LM95071 be used in safety-critical applications? While the LM95071 is highly accurate, it is important to refer to the data sheet and other documentation for specific guidelines on using it in safety-critical applications.
- How does the LM95071 communicate with the host controller? The LM95071 communicates through an SPI or MICROWIRE compatible three-wire serial interface.
