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AD7927 View Datasheet(PDF) - Unspecified

Part NameDescriptionManufacturer
AD7927 8-Channel, 200 kSPS, 12-Bit ADC with Sequencer in 20-Lead TSSOP ETC
Unspecified 
AD7927 Datasheet PDF : 20 Pages
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AD7927
ABSOLUTE MAXIMUM RATINGS1
(TA = 25C, unless otherwise noted.)
AVDD to AGND . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to +7 V
VDRIVE to AGND . . . . . . . . . . . . . . . . 0.3 V to AVDD + 0.3 V
Analog Input Voltage to AGND . . . . 0.3 V to AVDD + 0.3 V
Digital Input Voltage to AGND . . . . . . . . . . . . 0.3 V to +7 V
Digital Output Voltage to AGND . . . . . 0.3 V to AVDD + 0.3 V
REFIN to AGND . . . . . . . . . . . . . . . . 0.3 V to AVDD + 0.3 V
Input Current to Any Pin Except Supplies2 . . . . . . . . ± 10 mA
Operating Temperature Range
Commercial (B Version) . . . . . . . . . . . . . . 40C to +85C
Storage Temperature Range . . . . . . . . . . . 65C to +150C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 150C
TSSOP Package, Power Dissipation . . . . . . . . . . . . . 450 mW
qJA Thermal Impedance . . . . . . . . . . . . . . 143C/W (TSSOP)
qJC Thermal Impedance . . . . . . . . . . . . . . . 45C/W (TSSOP)
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . 215C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220C
ESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 kV
NOTES
1 Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only and 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
Model
Temperature
Range
Linearity
Error (LSB)1
Package
Option
Package
Description
AD7927BRU
EVAL-AD7927CB2
EVAL-CONTROL BRD23
40C to +85C
±1
RU-20
TSSOP
Evaluation Board
Controller Board
NOTES
1 Linearity error here refers to integral linearity error.
2 This can be used as a standalone evaluation board or in conjunction with the Evaluation Controller Board for evaluation/demonstration purposes.
3 This board is a complete unit allowing a PC to control and communicate with all Analog Devices evaluation boards ending in the CB designators.
To order a complete evaluation kit, you will need to order the particular ADC evaluation board, e.g., EVAL-AD7927CB, the EVAL-CONTROL
BRD2, and a 12 V ac transformer. See the relevant Evaluation Board Application Note for more information.
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
AD7927 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.
REV. 0
–5–
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