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Número de pieza | S-8120C | |
Descripción | CMOS TEMPERATURE SENSOR IC | |
Fabricantes | Seiko Instruments | |
Logotipo | ||
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No Preview Available ! S-8110C/8120C Series
www.sii-ic.com
© Seiko Instruments Inc., 2002-2015
CMOS TEMPERATURE SENSOR IC
Rev.5.1_00
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°C to +100°C)
S-8120C Series: ±2.5°C (–30°C 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°C to +80°C)
• Wide power supply voltage operation VDD = 2.4 V to 10.0 V
• Low current consumption
4.5 μA typ. (+25°C)
• Built-in operational amplifier
• VSS standard output
• Lead-free, Sn 100%, halogen-free*1
*1. Refer to “ Product Name Structure” for details.
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
• SC-82AB
• SNT-4A
Seiko Instruments Inc.
1
1 page Rev.5.1_00
Pin Configurations
SC-82AB
Top view
43
12
Figure 2
SNT-4A
Top view
14
23
Figure 3
CMOS TEMPERATURE SENSOR IC
S-8110C/8120C Series
Table 2
Pin No. Pin name
Pin description
1
VDD
Power supply pin
2
VSS
GND pin
3
NC*1
No connection
4 VOUT Output voltage pin
*1. The NC pin is electrically open.
The NC pin can be connected to VDD or VSS.
Table 3
Pin No. Pin name
Pin description
1
VSS
GND pin
2
VDD
Power supply pin
3 VOUT Output voltage pin
4
NC*1
No connection
*1. The NC pin is electrically open.
The NC pin can be connected to VDD or VSS.
Seiko Instruments Inc.
5
5 Page Rev.5.1_00
CMOS TEMPERATURE SENSOR IC
S-8110C/8120C Series
3. Nonlinearity (ΔNL)
ΔNL indicates the nonlinearity of the output voltage and is defined as the difference of the characteristic curve of
the output voltage and the approximated straight line shown below.
ΔNL is calculated using the following formula.
∆NL
=
a*1
b*2
× 100
Output voltage
a
VOUT (at −20°C)
(B) Actual measurement of output voltage
ba
VOUT (at +80°C)
a (A) Approximated straight line
−20°C 0°C
+80°C
Ambient temperature [Ta]
Figure 8
*1. The maximum deviation of the actual measurement of output voltage (B) and an approximated straight
line (A) in temperature within −20°C to +80°C. (An approximated straight line is taken as the straight line
when the “a” becomes the minimum.)
*2. The difference of the output voltage within −20°C to +80°C.
4. Line Regulation (ΔVOUT1)
ΔVOUT1 indicates the output voltage dependence on the input voltage. That is, the values express how the
output voltage changes, when input voltage is changed under the condition that output current is fixed.
5. Load regulation (ΔVOUT2)
ΔVOUT2 indicates the output voltage dependence on the output current. That is, the values express how the
output voltage changes, when output current is changed under the condition that input voltage is fixed.
Seiko Instruments Inc.
11
11 Page |
Páginas | Total 23 Páginas | |
PDF Descargar | [ Datasheet S-8120C.PDF ] |
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