SM3320A Datasheet, PDF (1/15 Pages) Nippon Precision Circuits Inc – High-sensitivity preamplifier for ultraviolet to infrared detection using a single IC

SM3320A
Optical Sensor IC
OVERVIEW
The SM3320A is an image sensor IC with a built-in single element photodiode of 1mm² and programmable signal conditioning circuit.
The IC can detect wider range of light wave from ultraviolet to infrared. The SM3320 integrates all the elements required for optical sensor
into an ultra-miniature package. The signal condition circuit has a programmable gain amplifier with dark current compensation circuit, so
that it can operate in wider temperature range. With 3 addressing bits, up to 8 SM3320A can be paralleled.
FEATURES
▪ High-sensitivity preamplifier for ultraviolet to infrared detection using
a single IC
▪ Dark current compensation circuit built-in for stable signal output
▪ Gain setting and output control function using serial interface
(DATA, SE, CLK, OE)
▪ Connection up to 8 devices in parallel according to 3-bit address setting
▪ Transimpedance range: 500k to 240M
▪ Photodiode detector size: 2.3mm×0.6mm
(1.0mm² photodetector surface area)
▪Anti-reflection film coating with little sensitivity changing by wavelength
▪ Supply voltage range: 2.7 to 5.5V (single supply)
▪ Current consumption: 1.5mA (typ)@V_DD=5V, no load
▪ Operating temperature range: -40 to +85°C
▪ Package: 12 pin HCOB
ORDERING INFORMATION
Device
Package
SM3320A
12 pin HCOB
PACKAGE DIMENSIONS
(Unit: mm)
Y
B
X
Photodiode detector
A
3.2 ^±0.1
1.15 ±0.2
Photodiode detector dimensions(Origin:Package center)
X
Y
A
-1.15
-0.7
B
1.15
-0.1
0.35
0.5
0.25±0.05
Package type : 12pin HCOB
Package size : 3.2mm×5.5mm
Photodiode detector size : 2.3mm×0.6mm
(1.0mm² photo detector surface area)
TYPICAL APPLICATION CIRCUIT
SM3320A
IC1
SM3320A
IC2
SM3320A
IC3
ADC
ADC
CPU
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