參數(shù)資料
型號： EVAL-AD7843CB
廠商： Analog Devices, Inc.
英文描述： Touch Screen Digitizer
中文描述： 觸摸屏數(shù)字轉換器
文件頁數(shù)： 4/16頁
文件大?。?/td> 193K
代理商： EVAL-AD7843CB
REV. 0
AD7843
–4–
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the AD7843 features proprietary ESD protection circuitry, permanent damage may occur on
devices subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are
recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
ABSOLUTE MAXIMUM RATINGS
1
(T
A
= 25
°
C unless otherwise noted)
+V
CC
to GND . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
Analog Input Voltage to GND . . . . . . . –0.3 V to V
CC
+ 0.3 V
Digital Input Voltage to GND . . . . . . . –0.3 V to V
CC
+ 0.3 V
Digital Output Voltage to GND . . . . . –0.3 V to V
CC
+ 0.3 V
V
REF
to GND . . . . . . . . . . . . . . . . . . . . –0.3 V to V
CC
+ 0.3 V
Input Current to Any Pin Except Supplies
2
Operating Temperature Range
Commercial . . . . . . . . . . . . . . . . . . . . . . . . –40
°
C to +85
°
C
Storage Temperature Range . . . . . . . . . . . –65
°
C to +150
°
C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 150
°
C
. . . . . . .
±
10 mA
QSOP, TSSOP Package, Power Dissipation . . . . . . . 450 mW
θ
JA
Thermal Impedance . . . . . . . . . . . 149.97
°
C/W (QSOP)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150.4
°
C/W (TSSOP)
θ
JC
Thermal Impedance . . . . . . . . . . . . . 38.8
°
C/W (QSOP)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.6
°
C/W (TSSOP)
Lead Temperature, Soldering
Vapor Phase (60 secs) . . . . . . . . . . . . . . . . . . . . . . . 215
°
C
Infrared (15 secs) . . . . . . . . . . . . . . . . . . . . . . . . . . 220
°
C
NOTES
1
Stresses above those listed under Absolute Maximum Rating may cause permanent
damage to the device. This is a stress rating only; functional operation of the device
at these or any other conditions above those listed in the operational sections of this
specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability.
2
Transient currents of up to 100 mA will not cause SCR latch-up.
ORDERING GUIDE
Temperature
Range
Linearity
Error (LSB)
1
Package
Option
Package
Description
Branding
Information
Model
AD7843ARQ
AD7843ARQ-REEL
AD7843ARQ-REEL7
AD7843ARU
AD7843ARU-REEL
AD7843ARU-REEL7
EVAL-AD7843CB
3
EVAL-CONTROL BRD2
4
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
Evaluation Board
Controller Board
±
2
±
2
±
2
±
2
±
2
±
2
RQ-16
2
RQ-16
2
RQ-16
2
RU-16
RU-16
RU-16
QSOP
QSOP
QSOP
TSSOP
TSSOP
TSSOP
AD7843ARQ
AD7843ARQ
AD7843ARQ
AD7843ARU
AD7843ARU
AD7843ARU
NOTES
1
Linearity error here refers to integral linearity error.
2
RQ = 0.15" Quarter Size Outline Package.
3
This can be used as a stand-alone evaluation board or in conjunction with the EVALUATION BOARD CONTROLLER for evaluation/demonstration purposes.
4
This EVALUATION BOARD CONTROLLER is a complete unit allowing a PC to control and communicate with all Analog Devices evaluation boards ending in the
CB designators.
PIN CONFIGURATION QSOP/TSSOP
TOP VIEW
(Not to Scale)
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
+V
CC
X+
Y+
X
–
Y
–
GND
IN3
IN4
DCLK
CS
DIN
BUSY
DOUT
PENIRQ
+V
CC
VREF
AD7843
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相關代理商/技術參數(shù)
參數(shù)描述
EVAL-AD7843CB3 制造商:AD 制造商全稱:Analog Devices 功能描述:Touch Screen Digitizer
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