Texas Instruments TMP127-Q1 SPI Temperature Sensor
Texas Instruments TMP127-Q1 SPI Temperature Sensor is a high accuracy 0.8°C digital temperature sensor that supports an ambient temperature range of -55°C to 175°C. The TMP127-Q1 features a 14-bit signed temperature resolution (0.03125°C per LSB) while operating over a supply range of 1.62V to 5.5V. The device has excellent PSR, able to maintain accuracy over the entire supply range. It is ideal for various applications with a fast conversion rate, low supply current, simple SPI compatible interface, and an enhanced operating temperature range.
The Texas Instruments TMP127-Q1 SPI interface features a simplified no register map protocol, with a read-only 3-Wire configuration and an optional read-write 4-Wire configuration. The TMP127-Q1 is a drop-in, software-compatible replacement to the LM71 and is available in a small SOT package for close placement to heat sources and quick response times.
Features
- AEC-Q100 qualified for automotive applications
- Device temperature grade-0 (–55°C to 175°C ambient operating temperature)
- Device HBM classification level 2
- Device CDM classification level C2b
- Functional Safety Capable
- Documentation available to aid functional safety system design
- High accuracy
- ±0.8°C (maximum) from –55°C to 150°C
- ±1°C (maximum) from 150°C to 175°C
- Supply range of 1.62V to 5.5V
- Automated continuous conversion mode
- Shutdown mode
- Low power consumption
- Typical standby current of 0.5µA
- Typical shutdown current of 0.35µA
- Factory calibrated
- 3-wire SPI interface
Applications
- Transmission control units
- On-board chargers (OBC)
- Brake systems
- Field transmitters
- Building and factory automation
- Avionics
- Ultrasonic level sensing
- Vehicle control units (VCU)
- Powertrain exhaust sensor
- Electric power steering (EPS)
Simplified Application
Additional Resources
Related Development Tool
Texas Instruments TMP126EVM Evaluation Module
Ideal for development with the TMP126 high-accuracy, 0.5°C digital temperature sensor.
Inilathala: 2022-05-10
| Na-update: 2025-03-11