S-58LM20A Series
CMOS TEMPERATURE SENSOR IC
www.sii-ic.com
Rev.3.1_00
© Seiko Instruments Inc., 2007-2015
The S-58LM20A Series is a high-accuracy temperature sensor IC on a single chip, provides output voltage which is linear
against the temperature change.
Each chip consists of a temperature sensor, a constant current circuit, and an operational amplifier.
The operating ambient temperature is from –55°C to 130°C. This IC has much better linearity than other conventional
temperature sensors such as thermistor, it is possible to achieve the extensive application for temperature control.
Features
• Accuracy against temperature
• Linear output voltage
• Nonlinearity
• Operation in wide range of power supply voltage
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Low current consumption
Built-in operational amplifier
Output voltage referred to VSS
*1
Lead-free, Sn 100%, halogen-free
±2.5°C (−55°C to +130°C)
−11.77 mV/°C Typ.
Ta = −30°C： 2.205 V Typ.
Ta = +30°C： 1.515 V Typ.
Ta = +130°C： 0.303 V Typ.
±0.4% Typ. (−20 to +80°C)
VDD = 2.4 to 5.5 V (−30°C to +130°C)
VDD = 2.7 to 5.5 V (−55°C to +130°C)
4.5 μA Typ. (+25°C) 6.0 μA Max. (−55°C to +130°C)
*1. Refer to “ Product Name Structure” for details.
Applications
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Compensation of high-frequency circuits such as cellular phones and radio equipment
Compensation of oscillation frequency in crystal oscillator
LCD contrast compensation
Compensation of amplifier gain
Compensation of auto focus circuits
Temperature detection in battery management
Overheating prevention for charged batteries or halogen lights
Package
• SC-82AB
• SNT-4A
• WLP-4B
Seiko Instruments Inc.
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