EPC903-CSP32-033

General Description 

The epc902..905 (sometimes herein after designated as epc90x)  are high-performance CCD line sensor, embedded in a CMOS  framework. Thus, they are solid state CCD/CMOS imagers. The epc90x are derivatives of the epc901 line imager chip and offer higher speed with one line of 128, 256 or 512 pixels, compared  to the epc901 chip with 1024 pixels. All imagers have in common  that they can store a total of up to 4 frames in the frame store for  ultra high-speed image acquisition (fast acquisition / slow read out). They all have in common a high performance video amplifier (single ended / differential) analog output for highest SNR. This allows  the user to select his interface of choice. The acquisition of the image is automatically controlled by a hardware control signal. Once the acquisition is completed, the imagers set a ready signal. The transmission of the frame is controlled by  the external control signal READ. When a read-out is initiated by a  pulse on the READ signal, it is sampled by a CDS stage. After a  fixed delay the frame can be shifted out through the video amplifier  by applying the appropriate number of read clock edges.

Features

Very high frame rate 

Photosensitive CCD array backside illuminated 

Very high sensitivity 

Pixel length of 120μm, various pixel pitch 

On-chip correlated-double sampling (CDS) 

Single-ended or differential analog output 

Simple 5-pin control interface for acquisition and read-out 

I2C bus interface 

Internal clock source, trimmable 

Two on-chip temperature sensors 

 Single supply voltage 

32 Pin space saving CSP package 

Chip size L x W x T: 8.0 x 1.3 x 0.23 mm

Applications 

Linear and rotary encoder

 Triangulation light barrier / distance measurement 

Line sensor / camera 

Surface scan  

Multi-touch displays / electronic white boards 

Spectrometers 

Bar code readers