Datasheet

AD7682/AD7689 Data Sheet
Rev. D | Page 18 of 32
TYPICAL CONNECTION DIAGRAMS
AD7689
REF
GND
VDD
VIO
DIN MOSI
MISO
SS
SCK
SCK
SDO
CNV
100nF
100nF
5
V
10µF
2
V+
V–
1.8V TO VDD
0V TO
V
REF
0V TO
V
REF
V+
V–
ADA4841-x
3
ADA4841-x
3
1. INTERNAL REFERENCE SHOWN. SEE VOLTAGE REFERENCE OUTPUT/INPUT SECTION FOR
REFERENCE SELECTION.
NOTES
2. C
REF
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
V
REF
/2
07353-028
Figure 26. Typical Application Diagram with Multiple Supplies
REF
GND
VDD
VIO
DIN MOSI
MISO
SS
SCK
SCK
SDO
CNV
100nF
100nF
+5V
10µF
2
V+
V–
V–
1.8V TO VDD
V+
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 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
V
REF
/2
V
REF
p-p
ADA4841-x
3
ADA4841-x
3
07353-029
AD7689
Figure 27. Typical Application Diagram Using Bipolar Input