AD7472ARU(2000) 查看數據表（PDF） - Analog Devices
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AD7472ARU Datasheet PDF : 16 Pages
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ABSOLUTE MAXIMUM RATINGS1
(TA = +25°C unless otherwise noted)
AVDD to AGND/DGND . . . . . . . . . . . . . . . . . –0.3 V to +7 V
DVDD to AGND/DGND . . . . . . . . . . . . . . . . . –0.3 V to +7 V
VDRIVE to AGND/DGND . . . . . . . . . . . . . . . . –0.3 V to +7 V
AVDD to DVDD . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V
VDRIVE to DVDD . . . . . . . . . . . . . . . –0.3 V to DVDD + 0.3 V
AGND TO DGND . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V
Analog Input Voltage to AGND . . . –0.3 V to AVDD + 0.3 V
Digital Input Voltage to DGND . . . –0.3 V to DVDD + 0.3 V
REF IN to AGND . . . . . . . . . . . . . . –0.3 V to AVDD + 0.3 V
Input Current to Any Pin Except Supplies2 . . . . . . . . ± 10 mA
Operating Temperature Range
Commercial (A and B Version) . . . . . . . . . –40°C to +85°C
Storage Temperature Range . . . . . . . . . . . –65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . .+150°C
SOIC, TSSOP Package Dissipation . . . . . . . . . . . . . +450 mW
θJA Thermal Impedance . . . . . . . . . . . . . . . 75°C/W (SOIC)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115°C/W (TSSOP)
θJC Thermal Impedance . . . . . . . . . . . . . . . 25°C/W (SOIC)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35°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 Ratings may cause perma-
nent 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.
AD7470/AD7472
PIN CONFIGURATIONS
DB7 1
24 DB6
DB8 2
23 DB5
(MSB) DB9 3
22 DB4
AVDD 4
21 VDRIVE
REF IN 5 AD7470 20 DVDD
VIN 6 TOP VIEW 19 DGND
AGND 7 (Not to Scale) 18 DB3
CS 8
17 DB2
RD 9
16 DB1
CONVST 10
15 DB0 (LSB)
CLKIN 11
14 NC
BUSY 12
13 NC
NC = NO CONNECT
DB9 1
24 DB8
DB10 2
23 DB7
(MSB) DB11 3
22 DB6
AVDD 4
21 VDRIVE
REF IN 5 AD7472 20 DVDD
VIN 6 TOP VIEW 19 DGND
AGND 7 (Not to Scale) 18 DB5
CS 8
17 DB4
RD 9
16 DB3
CONVST 10
15 DB2
CLKIN 11
14 DB1
BUSY 12
13 DB0 (LSB)
ORDERING GUIDE
Model
Temperature
Range
Resolution
(Bits)
Package
Options1
AD7470ARU
–40°C to +85°C
10
AD7472AR
–40°C to +85°C
12
AD7472BR
–40°C to +85°C
12
AD7472ARU
–40°C to +85°C
12
AD7472BRU
EVAL-AD7470CB2
–40°C to +85°C
12
EVAL-AD7472CB2
EVAL-CONTROL BOARD3
HSC-INTERFACE BOARD
RU-24
R-24
R-24
RU-24
RU-24
Evaluation Board
Evaluation Board
Controller Board
Evaluation High Speed Interface Board
NOTES
1R = SOIC; RU = TSSOP.
2This can be used as a stand-alone evaluation board or in conjunction with the EVAL-CONTROL BOARD for evaluation/demonstration purposes.
3This board is a complete unit allowing a PC to control and communicate with all Analog Devices evaluation boards ending in the CB designators.
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 AD7470/AD7472 features proprietary ESD protection circuitry, permanent dam-
age 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
REV. A
–5–
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