TSL1412S
1536 ?1 LINEAR SENSOR ARRAY WITH HOLD
TAOS045F APRIL 2007
1
The LUMENOLOGY r Company
r
r
Copyright E 2007, TAOS Inc.
www.taosinc.com
D 1536 ?/SPAN> 1 Sensor-Element Organization
D 400 Dot-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
Description
The TSL1412S linear sensor array consists of 2
sections of 768 photodiodes, each with
associated charge amplifier circuitry, aligned to
form a contiguous 1536 ?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 糾 by
55.5 糾 with 63.5-糾 center-to-center spacing
and 8-糾 spacing between pixels. Operation is
simplified by internal logic that requires only a
serial-input (SI) pulse and a clock.
The device 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)
2, 8
4, 10
SI
CLK
768-Bit Shift Register (2 each)
Q768 (Q1536)
Switch Control Logic
Q3
Q2
Q1
Hold
SO
7, 11
3, 9
Hold
5
13
6, 12
Output
Buffer
Gain
Trim
V
DD
AO
GND
Integrator
Reset
_
+
Pixel 1
(769)
Pixel
2
(770)
Pixel
768
(1536)
Pixel
3
(771)
Sample/Hold/
Output
Analog
Bus
S1
S2
2
1
3
1
2
r
r
Texas Advanced Optoelectronic Solutions Inc.
1001 Klein Road S Suite 300 S Plano, TX 75074 S (972) 673-0759
(TOP VIEW)
V
PP
SI1
HOLD1
CLK1
GND
AO1
SO1
SI2
HOLD2
CLK2
SO2
AO2
V
DD
1
2
3
4
5
6
7
8
9
10
11
12
13
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