The Tetra 2k sensor is a 2048 resolution, high performance, digital, quadlinear CMOS image sensor. The sensor has four individual lines for independent red, green, blue, and near infrared or monochrome channels (RGB + NIR / mono). The sensor readout chain is designed for 100 kHz operation, processing the four pixel rows in 40 μs.
 
The 14 μm x 14 μm pixel is optimized for high quantum efficiency (QE) with a high fill factor. The pixel signal capacity allows for high SNR imaging. Low read noise and high dynamic range are achieved through the use of correlated double sampling (CDS) and 12-bit A/D conversion. Low fixed pattern noise is achieved by using Digital Double Sampling (DDS). In addition, each color has its own exposure control, resulting in an easy-to-perform white calibration.
 
Digitized data is transmitted via six LVDS ports, operating at up to 600 Mbps data rate. The sensor can operate in “master mode” where the line rate is defined by an SPI register; or in “slave mode” where the line rate is defined by an external trigger.
 
The 70-pin package offers high signal integrity and simple interfacing for quick system integration. Access to the sensor control registers is handled through a Serial-Peripheral-Interface (SPI).
 
Features
 
CMOS
RGB+N IR/mono
On-board 12-bit ADC
4 pixel rows with exposure control
High speed: 25kHz x 4 max line rate
High responsivity and full well
Maximized fill factor
Low noise
Ease of integration
LVDS data streaming (6 ports)
Low cost
 
Applications
 
Food sorting
Mineral sorting
Recycling
Document scanning