The ADT7311 is an automotive temperature sensor with high performance and high accuracy. It has a temperature accuracy of ±0.5°C and a resolution of 16 bits. It features fast startup conversion time and low power consumption, and can operate in a wide range of temperatures and voltages.
The ADT7311 is a high‑accuracy digital temperature sensor that integrates a band‑gap reference and a 16‑bit sigma‑delta ADC to provide temperature measurements with 0.0078 °C resolution. It operates from 2.7 V to 5.5 V and offers programmable interrupt thresholds, low power consumption, and an SPI‑compatible interface.
Designed for automotive and industrial applications, the device can be used for battery management, climate control, powertrain monitoring, and other temperature‑critical functions. Proper supply decoupling and layout are recommended to maintain accuracy, especially when powered from switching regulators.
| Temperature range | -40 °C to +150 °C |
|---|---|
| Supply voltage range | 2.7 V to 5.5 V |
| Resolution (16‑bit mode) | 0.0078 °C |
| Accuracy (automotive grade) | ±0.5 °C from −40 °C to +105 °C (2.7 V to 3.6 V) |
| Power dissipation (normal mode, 3.3 V) | 700 µW |
Typical power consumption is 700 µW at 3.3 V in the 1 sample‑per‑second mode.
The device operates from 2.7 V up to 5.5 V.
Yes, the ADT7311 is qualified for automotive use.