The ADT7302 is a micropower digital temperature sensor with a -40°C to +125°C operating temperature range, ±2°C accuracy, 0.03125°C temperature resolution, 1 μA shutdown current, and 0.631 mW power dissipation.
The ADT7302 is a complete temperature monitoring system available in space‑saving SOT‑23 and MSOP packages. It integrates a band‑gap temperature sensor with a 13‑bit ADC, providing a resolution of 0.03125 °C and an operating temperature range of –40 °C to +125 °C. The device features a low shutdown current of 1 pA and a flexible serial interface compatible with SPI, QSPI, MICROWIRE, and DSP protocols.
Key specifications include a supply voltage range of 2.7 V to 5.25 V, normal‑mode supply current of 1.6 mA–2.2 mA, and power dissipation of 0.631 mW at 3.3 V. The ADT7302 is suited for applications such as medical equipment, automotive controls, cell phones, hard‑disk drives, and various consumer and industrial devices.
| Operating temperature range | –40 °C to +125 °C |
|---|---|
| Temperature resolution | 0.03125 °C |
| Supply voltage | 2.7 V to 5.25 V |
| Shutdown current | 1 pA |
| Power dissipation (normal mode) | 0.631 mW at 3.3 V |
| Normal‑mode supply current | 1.6 mA–2.2 mA (3.3 V) |
| Serial interface compatibility | SPI, QSPI, MICROWIRE, DSP |
The ADT7302 provides a temperature resolution of 0.03125 °C.
In shutdown mode the device draws only 1 pA of current.
The ADT7302 supports SPI, QSPI, MICROWIRE, and DSP‑compatible serial interfaces.
The device operates from 2.7 V up to 5.25 V.