© Seiko Instruments Inc., 2009-2010
2-WIRE DIGITAL TEMPERATURE SENSOR
S-5851A Series is a 2-wire serial I/O digital temperature sensor. This IC measures temperature with resolution of 0.0625°C
without external parts. This IC is ideal for wide-ranging temperature measurement for various applications.
A temperature sensor, a reference voltage generation circuit, a ΔΣ type A/D converter and interface bus are integrated in a
chip, and packages SNT-6A and SOT-23-6 available for this IC.
• Low voltage operation
• Low current consumption
• High accuracy
• Temperature resolution
• Digital output
• Maximum operating frequency
• Low power supply voltage detection circuit
• Lead-free, Sn 100%, halogen-free*1
: VDD (min.) = 2.7 V
: 45 μA typ. (+25°C)
1 μA typ. (+25°C at shutdown)
: ±2.0°C (max.) −25°C to +85°C
±3.0°C (max.) −40°C to +125°C
: 2-wire serial interface
: 400 kHz
*1. Refer to “ Product Name Structure” for details.
• Temperature monitor for power supply
• Temperature monitor for battery
• Air conditioning system
• Various electronics devices
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