AD7682/AD7689
TYPICAL CONNECTION DIAGRAMS
10µF
2
100nF
5V
1.8V TO VDD
100nF
100nF
V+
0V TO V
REF
ADA4841-x
3
V–
V+
INx
IN0
REF
REFIN VDD
VIO
AD7682/AD7689
DIN
SCK
SDO
CNV
MOSI
SCK
MISO
SS
0V TO V
REF
ADA4841-x
3
0V OR
V
REF
/2
V–
COM
GND
NOTES:
1. INTERNAL REFERENCE SHOWN. SEE VOLTAGE REFERENCE OUTPUT/INPUT SECTION FOR
REFERENCE SELECTION.
2. C
REF
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
V+
10µF
2
100nF
100nF
100nF
REF
ADA4841-x
3
IN0
V+
INx
REFIN VDD
VIO
AD7682/AD7689
DIN
SCK
SDO
MOSI
SCK
MISO
SS
ADA4841-x
3
CNV
V
REF
p-p
V
REF
/2
COM
GND
NOTES:
1. INTERNAL REFERENCE SHOWN. SEE VOLTAGE REFERENCE OUTPUT/INPUT SECTION FOR
REFERENCE SELECTION.
2. C
REF
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.
07353-028
07353-029
Figure 27. Typical Application Diagram Using Bipolar Input
Rev. 0 | Page 17 of 28
AD [ ANALOG DEVICES ]
