AD7923(Rev0) 查看數據表（PDF） - Analog Devices

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AD7923
(Rev.:Rev0)

4-Channel, 200 kSPS, 12-Bit ADC with Sequencer in 16-Lead TSSOP

Analog Devices 

ABSOLUTE MAXIMUM RATINGS1

(TA = 25∞C, 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) . . . . . . . . . . . . . . –40∞C to +85∞C

Storage Temperature Range . . . . . . . . . . . –65∞C to +150∞C

Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . 150∞C

AD7923

TSSOP Package, Power Dissipation . . . . . . . . . . . . . 450 mW

qJA Thermal Impedance . . . . . . . . . . . . 150.4∞C/W (TSSOP)

qJC Thermal Impedance . . . . . . . . . . . . . 27.6∞C/W (TSSOP)

Lead Temperature, Soldering

Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . 215∞C

Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . 220∞C

ESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 kV

NOTES

1Stresses 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.

2Transient 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

AD7923BRU

–40∞C to +85∞C ± 1

EVAL-AD7923CB2

EVAL-CONTROL BRD23

RU-16

TSSOP

Evaluation Board

Controller Board

NOTES

1Linearity error here refers to integral linearity error.

2This can be used as a standalone evaluation board or in conjunction with the Evaluation Controller 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.

To order a complete evaluation kit, the you will need to order the particular ADC evaluation board, e.g., EVAL-AD7923CB, 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

AD7923 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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