AD7682 datasheet(20/35 Pages) AD

20 / 35 page

AD7682/AD7689

Data Sheet

Rev. H | Page 20 of 35

TYPICAL CONNECTION DIAGRAMS

AD7689

REF

GND

VDD

VIO

DIN

MOSI

MISO

SCK

SDO

CNV

100nF

10µF2

V+

V–

1.8V TO VDD

0V TO VREF

V+

V–

1. INTERNAL REFERENCE SHOWN. SEE VOLTAGE REFERENCE OUTPUT/INPUT SECTION FOR

REFERENCE SELECTION.

NOTES

2. CREF IS USUALLY A 10µF CERAMIC CAPACITOR (X5R).

3. SEE THE DRIVER AMPLIFIER CHOICE SECTION FOR ADDITIONAL RECOMMENDED AMPLIFIERS.

4. SEE THE DIGITAL INTERFACE SECTION FOR CONFIGURING AND READING CONVERSION DATA.

IN0

IN[7:1]

COM

REFIN

100nF

0V OR

VREF/2

ADA4805-1/

ADA4807-1 3

ADA4805-1/

ADA4807-1 3

Figure 28. Typical Application Diagram with Multiple Supplies

REF

GND

VDD

VIO

DIN

MOSI

MISO

SCK

SDO

CNV

100nF

+5V

10µF2

V+

V–

1.8V TO VDD

V+

NOTES

1. INTERNAL REFERENCE SHOWN. SEE VOLTAGE REFERENCE OUTPUT/INPUT SECTION FOR

REFERENCE SELECTION.

2. CREF IS USUALLY A 10µF CERAMIC CAPACITOR (X5R).

3. SEE THE DRIVER AMPLIFIER CHOICE SECTION FOR ADDITIONAL RECOMMENDED AMPLIFIERS.

4. SEE THE DIGITAL INTERFACE SECTION FOR CONFIGURING AND READING CONVERSION DATA.

IN0

IN[7:1]

COM

REFIN

100nF

VREF/2

VREF p-p

ADA4805-1/

ADA4807-1 3

ADA4805-1/

ADA4807-1 3

AD7689

Figure 29. Typical Application Diagram Using Bipolar Input

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