±2°C Accurate, MicroPower Digital Temperature Sensor in 6-Lead SOT-23

The ADT7302 is a complete temperature monitoring system available in SOT-23 and MSOP packages. It contains a bandgap temperature sensor and a 13-bit ADC to monitor and digitize the temperature reading to a resolution of +0.03125°C.

The ADT7302 has a flexible serial interface that allows easy interfacing to most microcontrollers. The interface is compatible with SPI™, QSPI and MICROWIRE™ protocol and is also compatible with DSPs. The part features a standby mode that is controlled via the serial interface.

The ADT7302’s wide supply voltage range, low supply current and SPI-compatible interface, make it ideal for a variety of applications, including personal computers, office equipment, automotive and domestic appliances.

Product Highlights

* On-chip temperature sensor that allows an accurate measurement of the ambient temperature. The measurable temperature range is −40°C to +125°C.

* Supply voltage of 2.7 V to 5.25 V.

* Space-saving 6-lead SOT-23 and 8-lead MSOP packages.

* Maximum temperature accuracy of ±2°C.

* 13-bit temperature reading to 0.03125°C resolution.

* Shutdown mode that reduces the power consumption to 4.88 μW with VDD = 3.3 V at 1 SPS.

* Compatible with AD7814.

Applications

* Medical equipment

* Automotive

Environmental controls

Oil Termperature

Hydraulic systems

* Cellular phones

* Hard disk drives

* Personal computers

* Electronic test equipment

* Office equipment

* Domestic appliances

* Process control

* 13 - Bit Temperature-to-Digital Converter

* – 40°C to + 125°C Operating Temperature Range

* Max Temperature of 125°C

* ± 2°C Accuracy

* 0.03125°C Temperature Resolution

* Operating Current of 1 µA