Datasheet

AD9244
Rev. C | Page 28 of 36
AVDD AVDD AGND AGND SENSE VREF REFGND REFB REFB REFT REFT CML VIN+ VIN– CLK+ CLK– AGND AGND AVDD AVDD DGND DRVDD DRVDD DGND
OTR
MSB-D13
D12
D11
D10
D9 D8 D7 D6 D5 D4 D3 D2 D1
LSB-D0
NIC
OEB
VR
DFS
DCS
AGND
NIC
DRVDD
DGND
OTRO
U1
AD9244
D13O D12O D11O D10O D9O D8O D7O D6O D5O D4O D3O D2O D1O D0O
+
C56 DNP
C57 DNP
JP2
JP24 JP25 JP23
JP8
JP22
AVDD
C2 0.1μF
R6
1kΩ
C40
0.001μF
C45
0.001μF
C1
10μF
10V
DUTDRVDD
C50
0.1μF
JP12
SECLK
R4
DNP
R3
DNP
WHT
TP5
VIN+
VIN–
1
2
D3
CW
A
VDD
R16
2.55kΩ
C29
0.1μF
+IN –IN
OUT
R20
2kΩ
C28
0.1μF
C27
10μF
10V
22 23 29 30 34 31 33 32
6 7
47 46 45 42 41 40 39 38 37 36
2 1 4 3
14 15 44
5
43 35 48
9 8
10
11
12 13 16 17 18 19 20 21 24 25 26 27 28
JP6 JP1
R42
1kΩ
R10
1kΩ
C37
0.1μF
+
C41
0.001μF
C42
0.001μF
C23
10μF
10V
DUTAVDD
C38
0.1μF
+
C39
0.001μF
C22
10μF
10V
DUTAVDD
C36
0.1μF
+
C35
0.1μF
C21
10μF
10V
+
+
JP11
DIFFA
JP14 JP13
DIFFB
JP15
C30
0.1μF
C33
0.1μF
C20
10μF
10V
+
C32
0.1μF
C34
0.1μF
2 3
1
7
AGND; 4 AVDD; 8
R17 2kΩ
R26
2kΩ
U5
AD822
+IN –IN
OUT
6 5
AGND; 4 AVDD; 8
U5
AD822
AVDD
FBEAD
L1
TP2
RED
DUTAVDD
C59
0.1μF
C58
22μF
25V
DUTAVDDIN
+
2
TB1
AGND
3TB1
FBEAD
L2
TP1
RED
AVDD
C52
0.1μF
C47
22μF
25V
AVDDIN
+
1TB1
FBEAD
L3
TP3
RED
DUTDRVDD
C53
0.1μF
C48
22μF
25V
DRVDDIN
+
5TB1
AGND
4TB1
FBEAD
L4
TP4
RED
DVDD
C14
0.1μF
C6
22μF
25V
DVDDIN
+
6TB1
TP11
BLK
TP12
BLK
TP13
BLK
TP14
BLK
02404-065
1.2V
Figure 65. AD9244 Evaluation Board, ADC, External Reference, and Power Supply Circuitry