1FEATURES

• 64 Channels

• 28.32 μSec 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

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.