AD6640AST Analog Devices Inc, AD6640AST Datasheet - Page 15

• Manufacturer Part Number: AD6640AST
• Description: IC ADC 12BIT 65MSPS 44-LQFP
• Manufacturer: Analog Devices Inc

Specifications of AD6640AST

• Rohs Status: RoHS non-compliant
• Function: A/D Converter
• Rf Type: Cellular/PCS, GPS
• Secondary Attributes: 12 Bit, 65MSPS
• Package / Case: 44-LQFP

REV. A
J1
J2
0.01 F
+5V ANALOG
ENCODE
ANALOG
INPUT
INPUT
COMMON
SUPPLY
+5VA
DV
+5VA
CC
0.1 F
+
+
348
C6
10 F
C4
10 F
100
6
348
4
T4–1T
GND
1:4
0.1 F
+5VA
3
C7
0.1 F
C8
0.1 F
2
1
1
2
0.1 F
6
4
E2
T4–1T
E1
1:4
0.01 F
74LVQ00
(+5VA)
+5VA
3
2
1
U5
C11
0.1 F
C9
0.1 F
270
3
J4
DV
4
5
CC
10
11
C12
0.1 F
C17
0.1 F
1
2
3
4
5
6
7
8
9
ENCODE
DV
DV
ENCODE
GND
GND
AIN
AIN
V
C1
AV
REF
6
CC
CC
CC
12 13 14 15
44
C13
0.1 F
BUFLAT
43
42
NC = NO CONNECT
41
C15
0.1 F
Figure 18. AD6640ST/PCB Schematic
AD6640
40
16 17 18 19 20 21 22
348
DUT
39 38
C16
0.1 F
348
37
36 35
348
(LSB) D0
34
–15–
DV
GND
NC
D8
D7
D6
D5
D4
D3
D2
D1
CC
33
32
31
30
29
28
27
26
25
24
23
348
348
348
348
348
348
348
BUFFERED OUTPUTS
TWO COMPLEMENT
348
348
BUFLAT
4
3
9
8
7
6
5
2
8
7
6
5
4
3
9
2
74LCX574
11
74LCX574
11
8D
7D
6D
5D
4D
3D
2D
1D
(DV
8D
7D
6D
5D
4D
3D
2D
1D
CK
(DV
CK
U4
CC
DV
CC
1
)
OE
OE
8Q
7Q
6Q
5Q
4Q
3Q
2Q
1Q
CC
8Q
7Q
6Q
5Q
4Q
3Q
2Q
1Q
)
1
12
13
14
15
16
17
18
19
12
13
14
15
16
17
18
19
GND
GND
GND
GND
GND
AD6640
348
348
348
348
348
348
B11
B10
B09
B08
B07
B06
B05
B04
B03
B02
B01
B00
348
348
348
348
348
348
10
11
12
13
14
15
16
17
18
19
20
DV
1
2
3
4
5
6
7
8
9
CC
J3
B00
B01
B02
B03
B04
B05
B06
B07
B08
B09
B10
B11
(+3.3V OR +5.0V)
40
39
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
38
37
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND