SM3321A Datasheet, PDF (1/9 Pages) Nippon Precision Circuits Inc – High-sensitivity preamplifier for visible to infrared detection using a single IC

SM3321A
Optical Sensor IC
OVERVIEW
The SM3321A is an image sensor IC with a built-in single element photodiode of 0.5mm². The IC can detect range of light wave from
visible to infrared in itself. It is a superior sensor with noise immunity to integrate photodetection circuits which consist of photodiodes and
operational amplifiers. The gain of amplifiers in SM3321A is settable by setting external terminals, so that it can detect range of light wave
from visible to infrared with high sensitivity.
FEATURES
▪ High-sensitivity preamplifier for visible to infrared detection using
a single IC
▪ Gain setting and output control function by pin terminal setting
(GS0, GS1, GS2, OEN)
▪ Transimpedance range: 2MΩ to 48MΩ
▪ Photodiode detector size: 0.22mm×2.34mm
(0.5mm² photodetector surface area)
▪Anti-reflection film coating with little sensitivity changing by wavelength
▪ Supply voltage range: 3.0 to 5.5V (single supply)
▪ Current consumption: 1.0mA (typ)@V_DD=5V, no load
▪ Operating temperature range: -40 to +85°C
▪ Package: 8 pin HCOB
ORDERING INFORMATION
Device
Package
PACKAGE DIMENSIONS
(Unit: mm)
2.8±0.1
1.65±0.15
IC chip
Pin No.1
A
R0.15
B
Photodiode
ʢTop Viewʣ
1.13±0.2
0.6±0.1
Photodiode detector dimensions
Origin: IC center unit : [mm]
X
Y
A
0.40
1.17
B
0.18
-1.17
Package type : 8pin HCOB
Package size : 2.8mm×3.05mm
Photodiode detector size : 0.22mm×2.34mm
(0.5mm² photo detector surface area)
SM3321A
8 pin HCOB
TYPICAL APPLICATION CIRCUIT
GS2
GS1
GS0
SM3321A -1
4.7μF
SM3321A -2
4.7μF
SM3321A -3
4.7μF
SM3321A -4
4.7μF
CPU
A/D
E0
E1
E2
E3
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