AD7682 View Datasheet(PDF) - Analog Devices

Part Name

Description

View to exact match

AD7682

16-Bit, 4-Channel/8-Channel, 250 kSPS PulSAR ADC

Analog Devices 

AD7682/AD7689

TYPICAL CONNECTION DIAGRAMS

5V 1.8V TO VDD

10µF2

100nF

100nF

100nF

V+

0V TO VREF

ADA4841-x 3

V–

V+

0V TO VREF

ADA4841-x 3

V–

0V OR

VREF/2

REF

REFIN VDD

VIO

IN0

AD7682/AD7689

DIN

INx

SCK

SDO

CNV

COM

GND

MOSI

SCK

MISO

SS

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 DRIVER AMPLIFIER CHOICE SECTION FOR ADDITIONAL RECOMMENDED AMPLIFIERS.

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

Figure 26. Typical Application Diagram with Multiple Supplies

5V 1.8V TO VDD

10µF2

100nF

100nF

100nF

V+

VREF p-p

VREF/2

ADA4841-x 3

V+

ADA4841-x 3

REF

REFIN VDD

VIO

IN0

AD7682/AD7689

DIN

INx

SCK

SDO

CNV

COM

GND

MOSI

SCK

MISO

SS

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 DRIVER AMPLIFIER CHOICE SECTION FOR ADDITIONAL RECOMMENDED AMPLIFIERS.

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

Figure 27. Typical Application Diagram Using Bipolar Input

Rev. 0 | Page 17 of 28

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