TSL1402R Datasheet, PDF (1/12 Pages) List of Unclassifed Manufacturers – 256 X 1 LINEAR SENSOR ARRAY WITH HOLD

t
t
D 256 × 1 Sensor-Element Organization
D 400 Dots-Per-Inch (DPI) Sensor Pitch
D High Linearity and Uniformity
D Wide Dynamic Range . . . 4000:1 (72 dB)
D Output Referenced to Ground
D Low Image Lag . . . 0.5% Typ
D Operation to 8 MHz
D Single 3-V to 5-V Supply
D Rail-to-Rail Output Swing (AO)
D No External Load Resistor Required
D Replacement for TSL1402
TSL1402R
256 × 1 LINEAR SENSOR ARRAY WITH HOLD
TAOS041 – AUGUST 2002
(TOP VIEW)
V_DD 1
SI1 2
CLK 3
AO1 4
GND 5
SO2 6
NC 7
ÉÉÉÉÉÇÇÇÇÇÉÉÉÉÉÇÇÇÇÇ
14 NC
13 SO1
12 GND
11 NC
10 SI2
9 NC
8 AO2
NC – No internal connection
Description
The TSL1402R linear sensor array consists of two sections of 128 photodiodes each and associated charge
amplifier circuitry, aligned to form a contiguous 256 × 1 pixel array. The device incorporates a pixel data-hold
function that provides simultaneous integration start and stop times for all pixels. The pixels measure 63.5 µm
by 55.5 µm, with 63.5-µm center-to-center spacing and 8-µm spacing between pixels. Operation is simplified
by internal logic requiring only a serial-input pulse (SI) and a clock.
The TSL1402R is intended for use in a wide variety of applications including mark and code reading, OCR and
contact imaging, edge detection and positioning, and optical encoding.
Functional Block Diagram (each section – pin numbers apply to section 1)
Pixel 1
Integrator
Reset
_
+
Sample/Hold/
Output
Pixel
2
Pixel
3
Pixel
128
Analog
Bus
Output
Buffer
Hold
Q1
Switch Control Logic
Q2
Q3
Q128
Gain
Trim
1
V_DD
4
AO
5
GND
13
SO
3
CLK
SI ²
128-Bit Shift Register
The LUMENOLOGYr Company
t
Texas Advanced Optoelectronic Solutions Inc.
800 Jupiter Road, Suite 205 S Plano, TX 75074 S (972_t) 673-0759
www.taosinc.com
Copyright E 2002, TAOS Inc.
1