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AD7843ARU 数据表(PDF) 4 Page - Analog Devices

部件名 AD7843ARU
功能描述  Touch Screen Digitizer
Download  16 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD7843ARU 数据表(HTML) 4 Page - Analog Devices

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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
(TA = 25
°C unless otherwise noted)
+VCC to GND . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
Analog Input Voltage to GND . . . . . . . –0.3 V to VCC + 0.3 V
Digital Input Voltage to GND . . . . . . . –0.3 V to VCC + 0.3 V
Digital Output Voltage to GND . . . . . –0.3 V to VCC + 0.3 V
VREF to GND . . . . . . . . . . . . . . . . . . . . –0.3 V to VCC + 0.3 V
Input Current to Any Pin Except Supplies
2
. . . . . . .
±10 mA
Operating Temperature Range
Commercial . . . . . . . . . . . . . . . . . . . . . . . . –40
°C to +85°C
Storage Temperature Range . . . . . . . . . . . –65
°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 150
°C
QSOP, TSSOP Package, Power Dissipation . . . . . . . 450 mW
θ
JA Thermal Impedance
. . . . . . . . . . . 149.97
°C/W (QSOP)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150.4
°C/W (TSSOP)
θJC 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
1Stresses 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.
2Transient currents of up to 100 mA will not cause SCR latch-up.
ORDERING GUIDE
Temperature
Linearity
Package
Package
Branding
Model
Range
Error (LSB)1
Option
Description
Information
AD7843ARQ
–40
°C to +85°C
±2
RQ-16
2
QSOP
AD7843ARQ
AD7843ARQ-REEL
–40
°C to +85°C
±2
RQ-16
2
QSOP
AD7843ARQ
AD7843ARQ-REEL7
–40
°C to +85°C
±2
RQ-16
2
QSOP
AD7843ARQ
AD7843ARU
–40
°C to +85°C
±2
RU-16
TSSOP
AD7843ARU
AD7843ARU-REEL
–40
°C to +85°C
±2
RU-16
TSSOP
AD7843ARU
AD7843ARU-REEL7
–40
°C to +85°C
±2
RU-16
TSSOP
AD7843ARU
EVAL-AD7843CB
3
Evaluation Board
EVAL-CONTROL BRD2
4
Controller Board
NOTES
1Linearity error here refers to integral linearity error.
2RQ = 0.15" Quarter Size Outline Package.
3This can be used as a stand-alone evaluation board or in conjunction with the EVALUATION BOARD CONTROLLER for evaluation/demonstration purposes.
4This 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
+VCC
X+
Y+
X–
Y–
GND
IN3
IN4
DCLK
CS
DIN
BUSY
DOUT
PENIRQ
+VCC
VREF
AD7843


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