AMIS-721250: Contact Image Sensor
Data Sheet
1.0 General Description
AMI Semiconductor’s AMIS-721250 (PI6050D) contact image sensor (CIS) is a selectable 600 or 1200 dot per inch (dpi) resolution
linear image sensor, which 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.
an output amplifier circuit with a power down feature. The sensors pixel-pixel spacing is approximately 21.15µm. The size of each
sensor without the scribe lines is 14560µm by 425µm.
2.0 Key Features
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600 or 1200dpi selectable resolutions
344 or 688 image sensor elements (pixels)
21.15µm (1200dpi) pixel center-to-center spacing (47.24dots/mm)
On-chip amplifier
Single 5.0V power supply
3.3V input clocks
3.0MHz maximum pixel rate
Parallel / integrate and transfer
Power-down circuit
High sensitivity
Low power
Low noise
14560µm
21.15µm
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1
2
2
3
3
4
4
Row of 688 Pixels (1200dpi)
or Selectable
Row of 344 Pixels (600dpi)
and Video Line Multiplexer
342
686
343
687
344
688
Parallel Transfer, Storage Cells and Readout Registers
425µm
Amplifier, Power-
Down and Offset
Control
SI
GBST
CLK
SIC
SC
VDD
VOUT
VSS
VREF
SO
Figure 1: Sensor Block Diagram
AMI Semiconductor
– Dec. 05, M-20496-004
www.amis.com
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AMI [ AMI SEMICONDUCTOR ]
