LM95172Q
LM95172Q is Digital Temperature Sensor manufactured by National Semiconductor.
Description
The LM95172Q is a digital temperature sensor with industryleading accuracy at temperatures up to 175°C. It features a linear Sigma-Delta Analog-to-Digital Converter (ADC) with fast conversion rates and low output noise. munication with the LM95172Q is achieved over an easy-to-use Serial Peripheral Interface (SPI) with high noise immunity.
The LM95172Q's resolution is user programmable from 0.0625°C to 0.0078125°C. When operating in 13-, 14- or 15bit resolution, the LM95172Q indicates a new conversion has been pleted. The LM95172Q also features an over-temperature alarm output (OVERTEMP) that asserts when the die temperature exceeds a programmed high limit.
The LM95172Q is specified for operation over the wide temperature range of -40°C to 175°C. It is available in die form which makes the LM95172Q ideal multi-chip modules or custom packaging to a wide variety of high-temperature applications.
Applications
- Automotive
- Process Monitoring
- Harsh-environment temperature monitoring
- Custom-package applications
- High-Temperature Modules
Features
- AEC-Q100 Grade 0 qualified and is manufactured on an
Automotive Grade Flow.
- 0.0625°C to 0.0078125°C temperature resolution
- Wide
- 40°C to +175°C temperature range
- 35 ms conversion time tracks fast temp changes
- OVERTEMP digital output switches when TDIE > THIGH
- Shutdown mode saves power yet wakes up for one-shot temperature update
Key Specifications
- Analog and Digital Supply Voltage
3.0V to 5.5V
- Total Supply Current Operating
400 µA (typ)
Shutdown - 40°C to +140°C
4 µA (max)
Shutdown - 40°C to +175°C
12 µA (max)
- Temperature Accuracy
+130°C to +160°C
±1.0°C (max)
+120°C to +130°C
±2.0°C (max)
+160°C to +175°C
±2.0°C (max)
- 40°C to +120°C
±3.5°C (max)
- Temperature Resolution
13-bit mode 0.0625°C/LSB
16-bit mode 0.0078125°C/LSB...
