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Analog Front-End. AFE0064 Datasheet

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Analog Front-End. AFE0064 Datasheet






AFE0064 Front-End. Datasheet pdf. Equivalent




AFE0064 Front-End. Datasheet pdf. Equivalent





Part

AFE0064

Description

64-Channel Analog Front-End



Feature


AFE0064 www.ti.com ..................... ....................................... ....................................... ....................................... ....................................... ....... SLAS672 – SEPTEMBER 2009 64 C hannel Analog Front End for Digital X-R ay Detector Check for Samples :AFE0064 FEATURES 1 • 64 Channels DESCRIPTIO N • 28.32 µSec Min Sc.
Manufacture

Texas Instruments

Datasheet
Download AFE0064 Datasheet


Texas Instruments AFE0064

AFE0064; an Time (including integration and data transfer for all 64 channels) The AFE0 064 is a 64 channel analog front end de signed to suit the requirements of flat panel detector based digital X-ray sys tems. • 7.5 MHz Max Data Transfer Ra te • Noise 824 e-RMS with 30 pF Senso r Capacitor in 1.2 pC Range • Integra l Nonlinearity: ±0.006% of FSR • Eig ht Adjustable Full Scale Ra.


Texas Instruments AFE0064

nges (0.13 pC min to 9.5 pC max) • Bui lt in CDS (signal sample – offset sam ple) • Selectable Integration Up/Down Mode • Low Power: 175 mW • NAP Mod e: 49.5 mW • 14 mm × 14 mm 128 Pin T QFP Package APPLICATIONS • Digital Ra diography • CT Scanners The device i ncludes 64 integrators, a PGA for full scale charge level selection, correlate d double sampler, 64 as to 2 multip.


Texas Instruments AFE0064

lexer, and two differential output drive rs. Hardware selectable Integration pol arity allows integration of a positive or negative charge and provides more fl exibility in system design. In addition , the device features TFT (Thin Film Tr ansistor from Flat Panel Detector) char ge injection compensation. This feature helps maximize the usable signal charg e range of the dev.

Part

AFE0064

Description

64-Channel Analog Front-End



Feature


AFE0064 www.ti.com ..................... ....................................... ....................................... ....................................... ....................................... ....... SLAS672 – SEPTEMBER 2009 64 C hannel Analog Front End for Digital X-R ay Detector Check for Samples :AFE0064 FEATURES 1 • 64 Channels DESCRIPTIO N • 28.32 µSec Min Sc.
Manufacture

Texas Instruments

Datasheet
Download AFE0064 Datasheet




 AFE0064
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




 AFE0064
AFE0064
SLAS672 – SEPTEMBER 2009 ........................................................................................................................................................................................ www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
FUNCTIONAL BLOCK DIAGRAM
IN
<00>
IN
<01>
IN-0
IN-1
CDS-0
Sh-s
Sh-r
CDS-1
Sh-s
Sh-r
To
integrators
CHARGE INJECTION
DF_SM,
VT-A,
VT-B
VDD
VSS
+ X1
Sig Differential
-
Rst Output
- Driver
OUTP_0
OUTM_0
IN
<62>
IN
<63>
EXT_C
AFE0064
IN-62
IN-63
CDS-62
Sh-s
Sh-r
CDS-63
Sh-s
Sh-r
+ X1
Sig Differential
-
Rst Output
- Driver
OUTP_1
OUTM_1
o/p
control
SMT_MD
ENTRI
P_REF
PREF
REF GEN
TIMINGS AND CONTROL
INTG, IRST, SHS, SHR, CLK, PDZ, STO, EOC
NAPZ, ENTRI, STI, PGA 0-2, INTUPZ
2 Submit Documentation Feedback
Product Folder Link(s) :AFE0064
Copyright © 2009, Texas Instruments Incorporated




 AFE0064
AFE0064
www.ti.com ........................................................................................................................................................................................ SLAS672 – SEPTEMBER 2009
ABSOLUTE MAXIMUM RATINGS(1)
over operating free-air temperature range (unless otherwise noted)
IN <n> to VSS
VDD to AGND
Digital input voltage to GND
Digital output to GND
Operating temperature range
Storage temperature range
Junction temperature (TJmax)
TQFP package(2)
Power dissipation
θJA Thermal impedance
VALUE / UNIT
–0.3 V to +VDD + 0.3 V
–0.3 V to 5 V
–0.3 V to (+VDD + 0.3 V)
–0.3 V to (+VDD + 0.3 V)
–40°C to 85°C
–65°C to 150°C
150°C
(TJ max – TA)/ θJA
45°C/W
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) Device confirms to MSL level 3 at 260°C as per JEDEC -033.
SPECIFICATIONS
TA = 25 to 85°C, +VDD = 3.3 V, fCLK = 15 MHz for sequential mode and 3.75 MHz for simultaneous mode, scan time = 28.32
µs (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
MAX UNIT
ANALOG INPUT RANGE
Range 0
0.13 ρC
Range 1
0.25 ρC
Range 2
0.5 ρC
Range 3
1.2 ρC
Range 4
2.4 ρC
Range 5
4.8 ρC
Range 6
7.2 ρC
Range 7
9.6 ρC
Input current
30 µA
Integrator positive input voltage
1.66 1.68
1.70 V
ANALOG OUTPUT
Differential full scale analog output
For all ranges
–(REFP-
REFM)
±1.4 (REFP-
REFM)
V
Output common-mode voltage
(REFP+REFM)/2
1.55
Copyright © 2009, Texas Instruments Incorporated
Product Folder Link(s) :AFE0064
Submit Documentation Feedback
3



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