EVAL-AD7898CB(Rev0) Просмотр технического описания (PDF) - Analog Devices

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EVAL-AD7898CB
(Rev.:Rev0)

5 V, 12-Bit, Serial 220 kSPS ADC in an 8-Lead Package

Analog Devices 

AD7898

ABSOLUTE MAXIMUM RATINGS1

(TA = 25°C unless otherwise noted)

VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V

Analog Input Voltage to GND

AD7898-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 17 V

AD7898-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 10 V

Reference Input Voltage to GND . . . . –0.3 V to VDD + 0.3 V

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

Commercial (A, B Versions) . . . . . . . . . . . –40°C to +85°C

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

Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C

SOIC Package, Power Dissipation . . . . . . . . . . . . . . . 450 mW

θJA Thermal Impedance . . . . . . . . . . . . . . . . . . . . 170°C/W

Lead Temperature, Soldering

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

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

ESD

AD7898-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 kV

AD7898-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 kV

NOTES

1Stresses above those listed under Absolute Maximum Ratings may cause perma-

nent damage to the device. This is a stress rating; 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.

PIN CONFIGURATION

REF IN 1

8 VDD

VIN 2 AD7898 7 CS / CONVST

TOP VIEW

GND 3 (Not to Scale) 6 VDRIVE

SCLK 4

5 SDATA

200␮A

IOL

TO

OUTPUT

PIN

CL

50pF

200␮A

IOH

1.6V

Figure 1. Load Circuit for Digital Output Timing

Specifications

ORDERING GUIDE

Model

Temperature Range Linearity Error (LSB)1 SNR (dB) Package Option2

AD7898AR-10

AD7898AR-3

EVAL-AD7898CB

EVAL-CONTROL BRD23

–40°C to +85°C

–40°C to +85°C

± 1 LSB

± 1 LSB

71 dB

71 dB

SO-8

SO-8

NOTES

1Linearity Error refers to integral linearity error.

2SO = SOIC.

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 AD7898 features proprietary ESD protection circuitry, permanent damage may

occur on devices subjected to high-energy electrostatic discharges. Therefore, proper ESD pre-

cautions are recommended to avoid performance degradation or loss of functionality.

WARNING!

ESD SENSITIVE DEVICE

–4–

REV. 0

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