t
TSL1402R
256
脳
1 LINEAR SENSOR ARRAY WITH HOLD
t
TAOS041 鈥?AUGUST 2002
V
DD
1
SI1 2
CLK 3
AO1 4
GND 5
SO2 6
NC 7
Low Image Lag . . . 0.5% Typ
Operation to 8 MHz
Single 3-V to 5-V Supply
Rail-to-Rail Output Swing (AO)
No External Load Resistor Required
Replacement for TSL1402
NC 鈥?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
脳
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
碌m
by 55.5
碌m,
with 63.5-碌m center-to-center spacing and 8-碌m 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 鈥?pin numbers apply to section 1)
1
Pixel 1
Integrator
Reset
Pixel
2
Pixel
3
Pixel
128
Analog
Bus
Output
Buffer
4
AO
V
DD
_
+
Sample/Hold/
Output
Switch Control Logic
Hold
Q1
Q2
Q3
Q128
CLK
SI
3
2
128-Bit Shift Register
The
LUMENOLOGY
r
Company
t
Texas Advanced Optoelectronic Solutions Inc.
800 Jupiter Road, Suite 205
S
Plano, TX 75074
S
(972) 673-0759
t
www.taosinc.com
1
脟脟
脟脟
脟脟
脟脟
脟脟
脡脡
脡脡
脡脡
脡脡
脡脡
D
D
D
D
D
D
D
D
D
D
D
256
脳
1 Sensor-Element Organization
400 Dots-Per-Inch (DPI) Sensor Pitch
High Linearity and Uniformity
Wide Dynamic Range . . . 4000:1 (72 dB)
Output Referenced to Ground
(TOP VIEW)
14 NC
13 SO1
12 GND
11 NC
10 SI2
9 NC
8 AO2
5
GND
Gain
Trim
13
SO
Copyright
E
2002, TAOS Inc.