TMP127-Q1 Automotive SPI Temperature Sensor

Texas Instruments' TMP127-Q1 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 1.62 V to 5.5 V. The device has excellent PSR that can maintain accuracy over the supply range. The fast conversion rate, low supply current, simple SPI-compatible interface, and enhanced operating temperature range make the device ideal for a wide range of applications.

The 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 2.90 mm x 1.60 mm SOT-23 package for close placement to heat sources and quick response times.