AFE0064_14 Datasheet, PDF (1/32 Pages) Texas Instruments – 64 Channel Analog Front End for Digital X-Ray Detector

AFE0064
www.ti.com ........................................................................................................................................................................................ SLAS672 – SEPTEMBER 2009
64 Channel Analog Front End for Digital X-Ray Detector
Check for Samples :AFE0064
FEATURES
1
• 64 Channels
DESCRIPTION
• 28.32 µSec Min Scan Time (including
integration and data transfer for all 64
channels)
The AFE0064 is a 64 channel analog front end
designed to suit the requirements of flat panel
detector based digital X-ray systems.
• 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
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.
• Baggage Scanners
• Infrared Spectroscopy
ORDERING INFORMATION⁽¹⁾
MODEL
AFE0064
INTEGRAL
LINEARITY
% of FS
0.006
POWER
DISSIPATION
175 mW
MIN SCAN
TIME
(µSec)
28.32
NUMBER OF PACKAGE
CHANNELS
TYPE
PACKAGE
DESIGNATOR
64
TQFP
PBK
TEMPERATURE
RANGE
–40 to 85°C
ORDERING
INFORMATION
AFE0064IPBK
AFE0064IPBKR
TRANSPORT
MEDIA
QUANTITY
90(5+1)
1000
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2009, Texas Instruments Incorporated