Manualshelf

Datasheet

ManualsBrandsANALOG DEVICES ManualsData collecting ICsData acquisition IC - AD converter (ADC) External , Internal LFCSP 20 VQ
11121314151617181920
AD7949 Data Sheet
TYPICAL CONNECTION DIAGRAMS
AD7949
REF
GND
VDD
VIO
DIN MOSI
MISO
SS
SCK
SCK
SDO
CNV
100nF
100nF
5V
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
07351-025
Figure 25. 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
AD7949
07351-026
Figure 26. Typical Application Diagram Using Bipolar Input
Rev. E | Page 16 of 32
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.