AD7720 Просмотр технического описания (PDF) - Analog Devices
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AD7720 Datasheet PDF : 16 Pages
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ABSOLUTE MAXIMUM RATINGS1
(TA = +25°C unless otherwise noted)
DVDD to DGND . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
AVDD to AGND . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
AVDD to DVDD . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V
AGND to DGND . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V
Digital Input Voltage to DGND . . –0.3 V to DVDD + 0.3 V
Analog Input Voltage to AGND . . . –0.3 V to AVDD + 0.3 V
Input Current to Any Pin Except Supplies2 . . . . . . . ± 10 mA
Operating Temperature Range
Industrial (B Version) . . . . . . . . . . . . . . . –40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Maximum Junction Temperature . . . . . . . . . . . . . . . +150°C
TSSOP Package
θJA Thermal Impedance . . . . . . . . . . . . . . . . . . . . 120°C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . +215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . +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 latchup.
AD7720
PIN CONFIGURATION
REF2 1
28 AVDD
AGND 2
27 REF1
NC 3
26 AGND
STBY 4
25 AVDD
DVAL 5
24 AGND
DGND
GC
BIP
6
23
AD7720
7 TOP VIEW 22
8 (Not to Scale) 21
VIN(+)
RESET
VIN(–)
MZERO 9
20 AGND
DATA 10
19 DVDD
SCLK 11
18 AGND
RESETO 12
17 XTAL2
NC 13
16 XTAL1/MCLK
AGND 14
15 DGND
NC = NO CONNECT
Model
AD7720BRU
ORDERING GUIDE
Temperature
Range
–40°C to +85°C
Package
Description
28-Lead Thin Shrink Small Outline
Package
Option
RU-28
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 AD7720 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
REV. 0
–5–
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