2-WIRE DIGITAL TEMPERATURE SENSOR
S-5851A Series
www.sii-ic.com © Seiko Instruments Inc., 2009-2010
2-WIRE DIGITAL TEMPERATURE SENSOR
Rev.2.1_00
S-5851...
Description
S-5851A Series
www.sii-ic.com © Seiko Instruments Inc., 2009-2010
2-WIRE DIGITAL TEMPERATURE SENSOR
Rev.2.1_00
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.
Features
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 : 0.0625°C : 2-wire serial interface : 400 kHz
*1. Refer to “ Product Name Structure” for details.
Applications
Temperature monitor for power supply Temperature monitor for battery Air conditioning system Various electronics devices
Packages
SNT-6A
SOT-23-6
Seiko Instruments Inc.
1
2-WIRE DIGITAL TEMPERATURE SENSOR S-5851A Series
Block Diagram
Temp SCL Sensor
Control Logic
SDA
VSS
ΔΣA/D Converter
Serial Interface
AD0
AD1 Oscillator
Register
VDD
Figure 1
Rev. 2.1_00
2 Seiko Instruments Inc.
Rev. 2.1_00
2-WIRE DIGITAL TEMPERATURE SENSOR S-5851A Series
Prod...
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