AD7682 Analog Devices, AD7682 Datasheet - Page 18

• Manufacturer Part Number: AD7682
• Manufacturer: Analog Devices

Specifications of AD7682

• Resolution (bits): 16bit
• # Chan: 4
• Sample Rate: 250kSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni,SE-Bip,SE-Uni
• Ain Range: Bip (Vref) x 0.5,Uni (Vref)
• Adc Architecture: SAR
• Pkg Type: CSP

AD7682/AD7689
TYPICAL CONNECTION DIAGRAMS
V
NOTES
1. INTERNAL REFERENCE SHOWN. SEE VOLTAGE REFERENCE OUTPUT/INPUT SECTION FOR
2. C
3. SEE THE DRIVER AMPLIFIER CHOICE SECTION FOR ADDITIONAL RECOMMENDED AMPLIFIERS.
4. SEE THE DIGITAL INTERFACE SECTION FOR CONFIGURING AND READING CONVERSION DATA.
REF
0V TO V
0V TO V
NOTES
1. INTERNAL REFERENCE SHOWN. SEE VOLTAGE REFERENCE OUTPUT/INPUT SECTION FOR
2. C
3. SEE THE DRIVER AMPLIFIER CHOICE SECTION FOR ADDITIONAL RECOMMENDED AMPLIFIERS.
4. SEE THE DIGITAL INTERFACE SECTION FOR CONFIGURING AND READING CONVERSION DATA.
REFERENCE SELECTION.
V
REFERENCE SELECTION.
REF
REF
0V OR
V
REF
p-p
REF
ADA4841-x
ADA4841-x
/2
IS USUALLY A 10µF CERAMIC CAPACITOR (X5R).
REF
REF
IS USUALLY A 10µF CERAMIC CAPACITOR (X5R).
/2
3
3
Figure 26. Typical Application Diagram with Multiple Supplies
V–
V+
V–
V+
Figure 27. Typical Application Diagram Using Bipolar Input
V–
V–
V+
V+
ADA4841-x
ADA4841-x
10µF
10µF
3
3
2
2
IN[7:1]
COM
IN0
Rev. C | Page 18 of 32
IN[7:1]
COM
IN0
REF
REF
100nF
+5V
100nF
AD7689
REFIN
REFIN
GND
AD7689
GND
VDD
VDD
100nF
100nF
5V
VIO
SCK
SDO
CNV
DIN
VIO
100nF
1.8V TO VDD
SCK
SDO
CNV
DIN
100nF
1.8V TO VDD
MOSI
SCK
MISO
SS
MOSI
SCK
MISO
SS
Data Sheet