CMOS TEMPERATURE SENSOR IC

S-8110C/8120C Series

Seiko Instruments Inc.

1

The S-8110C/8120C Series is a family of high-precision

temperature sensor ICs on a single chip with a linear

output voltage for temperature changes.

Each chip is composed of a temperature sensor, a

constant current circuit, and an operational amplifier.

It can be used at temperatures ranging from –40

°C to

100

°C. These devices have much better linearity than

other temperature sensors such as thermistors, and can

be used for a wide range of temperature control

applications.

Features

• Temperature accuracy

S-8110C Series:

±5.0 °C (–30 to 100 °C)

S-8120C Series:

±2.5 °C (–30 to 100 °C)

• Linear output voltage

–8.20 mV/

°C Typ.

Ta

=–30 °C:

1.951 V Typ.

Ta

=+30 °C:

1.474 V Typ.

Ta

=+100 °C: 0.882 V Typ.

• Nonlinearity

±0.5 % typ. (–20 to 80 °C)

• Wide power supply voltage operation V

• Low current consumption

4.5

μA typ. (25 °C)

• Built-in operational amplifier

• V

• Ultra-small plastic package

SC-82AB, SNT-4A

• Lead-free products

Applications

• 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

Packages

Package name

Drawing code

Package

Tape

Reel

Land

SC-82AB

NP004-A

NP004-A

NP004-A

⎯

SNT-4A

PF004-A

PF004-A

PF004-A

PF004-A