AMIS-722402 Datasheet, PDF (1/15 Pages) AMI SEMICONDUCTOR – Contact Image Sensor

AMIS-722402: Contact Image Sensor
Data Sheet
1.0 General Description
AMI Semiconductor’s AMIS-722402 (PI5002D) contact image sensor (CIS) consists of 1376 active pixels which enables the selection of
2400, 1200, 600, or 300 dots per inch (dpi) resolutions, and employs AMI Semiconductor’s proprietary CMOS image sensing
technology. The sensor contains an on-chip output amplifier, power down circuitry and parallel transfer features that are uniquely
combined with the present-day active-pixel-sensor technology. The image sensors are designed to be cascaded end-to-end on a
printed circuit board (PCB) and packaged in an image sensing module. Applications for the sensor array includes facsimiles, PC
scanners, check readers, and office automation equipment.
Figure 1 is a block diagram of the sensor, showing 1376 active pixels, their associated multiplexing switches, buffers, and an output
amplifier circuit with a power down feature. The sensors pixel-pixel spacing is approximately 10.58µm. The size of each sensor without
the scribe lines is 14560µm by 230µm.
2.0 Key Features
• 2400, 1200, 600, and 300dpi selectable resolutions
• 1376 image sensor elements (pixels)
• 10.58µm (2400dpi) pixel center-to-center spacing
• On-chip amplifier
• Single 3.3V power supply
• 3.3V input clocks and control signals
• 3MHz maximum pixel rate
• Parallel / integrate and transfer
• Power-down circuit
• High sensitivity
• Low power
• Low noise
7.26µm
1
10.58µm
2
3
4
14560µm
Row of 1376 Pixels (2400dpi)
1374 1375 1376
Parallel Transfer, Storage Cells and Readout Registers
Scan Direction
Amplifier, Power-
Down and Offset
Control
Biasing
SI GBST
CLK
SIC WS
VOUT VREF
VSS VDD VBIAS
SR1 SR2
SO
230µm
Figure 1: Sensor Block Diagram
AMI Semiconductor – Jan. 06, M-20499-004
1
www.amis.com