TI AFE0064 64 Channel Analog Front End for Digital X-Ray Detector

RS Components Part # 732-1679

Manufactured by Texas Instruments - Part # AFE0064IPBK - 128 pin TQFP Package

DESCRIPTION

The AFE0064 is a 64 channel analog front end designed to suit the requirements of flat panel detector based digital X-ray systems.
The device includes 64 integrators, a PGA for full  scale charge level selection, correlated double sampler, 64 as to 2 multiplexer, and two differential output drivers.
Hardware selectable Integration polarity allows integration of a positive or negative charge and provides more flexibility in system design. In addition, the device features TFT (Thin Film Transistor from Flat Panel Detector) charge injection compensation. This feature helps maximize the usable signal charge range of the device.
The nap feature enables substantial power saving. This is especially useful for power saving during long X-ray exposure periods.
The AFE0064 is available in a 128 pin TQFP package.

FEATURES

64 Channels
28.32 µS Min Scan Time (Including integration and data transfer for all 64 channels)
7.5 MHz Max Data Transfer Rate
Noise 824 e-RMS with 30 pF Sensor Capacitor in 1.2 pC Range
Integral Nonlinearity: ±0.006% of FSR
Eight Adjustable Full Scale Ranges (0.13 pC min to 9.5 pC max)
Built in CDS (signal sample - offset sample)
Selectable Integration Up/Down Mode
Low Power: 175 mW
NAP Mode: 49.5 mW
14 mm × 14 mm 128 Pin TQFP Package

APPLICATIONS

Digital Radiography
CT Scanners
Baggage Scanners
Infrared Spectroscopy