EVAL-AD7782EB Просмотр технического описания (PDF) - Analog Devices
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EVAL-AD7782EB Datasheet PDF : 12 Pages
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AD7782
CH1/CH2 (I)
t2
CS (I)
DOUT/RDY
t3
t4
MSB
LSB
MSB
SLAVE MODE
SCLK (I)
MASTER MODE
SCLK (O)
t5
t10
t7
t6
t5
t11
t7
t6
I = INPUT TO AD7782, O = OUTPUT FROM AD7782
SLAVE MODE IS SELECTED BY TYING THE MODE PIN LOW, WHILE MASTER MODE IS SELECTED BY TYING THE MODE PIN HIGH.
Figure 2. Slave/Master Mode Timing Diagram
t9
t8
LSB
ABSOLUTE MAXIMUM RATINGS*
(TA = 25°C unless otherwise noted)
VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
Analog Input Voltage to GND . . . . . . . . –0.3 V to VDD + 0.3 V
Reference Input Voltage to GND . . . . . –0.3 V to VDD + 0.3 V
Total AIN/REFIN Current (Indefinite) . . . . . . . . . . . . . 30 mA
Digital Input Voltage to GND . . . . . . . . –0.3 V to VDD + 0.3 V
Digital Output Voltage to GND . . . . . . –0.3 V to VDD + 0.3 V
Operating Temperature Range . . . . . . . . . . . . –40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . . –65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
TSSOP Package
θJA Thermal Impedance . . . . . . . . . . . . . . . . . . . . .97.9°C/W
θJC Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . 14°C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . 215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220°C
*Stresses above those listed under Absolute Maximum Ratings may cause per-
manent 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.
Model
AD7782BRU
EVAL-AD7782EB
ORDERING GUIDE
Temperature Range
–40°C to +85°C
Package Description
TSSOP
Evaluation Board
Package Option
RU-16
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 AD7782 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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