2-Wire Digital Temperature Sensor

Seiko Instruments S-5851A Series is a 2-wire serial I/O digital temperature sensor. This IC measures temperature with resolution of 0.0625°C without the need for external components. The S-5851A is ideal for wide-ranging temperature measurements in various applications. The S-5851A integrates a temperature sensor, reference voltage generation circuit, a delta-sigma type A/D converter and interface bus.

Features:

• 2.7 V operation @ VDD (min.)
• 45 µA (typ.) consumption (+25°C)
• 1 µA typ. (+25°C at shutdown)
• ±2.0°C (max.) accuracy ?25°C to +85°C
• ±3.0°C (max.) accuracy ?40°C to +125°C
• Temperature resolution: 0.0625°C
• Digital output: 2-wire serial interface
• 400 kHz maximum operating frequency
• Low power supply voltage detection circuit
• Lead-free, Sn 100%, halogen-free
• SNT-6A and SOT-23-6 packages

Applications:

• Temperature monitor for power supply
• Temperature monitor for battery
• Any application needing temperature monitoring