AD768 Analog Devices, AD768 Datasheet - Page 17

• Manufacturer Part Number: AD768
• Description: 16-Bit, 30 MSPS D/A Converter
• Manufacturer: Analog Devices

Specifications of AD768

• Resolution (bits): 16bit
• Dac Update Rate: 30MSPS
• Dac Settling Time: 25ns
• Max Pos Supply (v): +5.25V
• Single-supply: No
• Dac Type: Current Out
• Dac Input Format: Par

REV. B
TP1
J1
J1
J1
J1
J1
J1
J1
J1
J1
31
29
27
25
23
21
19
17
33
R13
R14
R15
R16
R17
R18
R19
R20
SW2
R12
10k
0
0
0
0
0
0
0
0
1
2
A
499
R1
R8
CLOCK
1
1µF
C1
2
2
3
A
A
U2
AD811
–V
+V
Figure 35. AD768 Evaluation Board Schematic
EE
CC
100
499
R7
R5
7
4
1µF
R11
50
C2
SW1
0.1µF
0.1µF
6
C5
C6
0.1µF
C18
1
2
A
A
10
11
12
13
14
1
2
3
4
5
6
7
8
9
IOUTA
NR
REFOUT
NC
REFCOM
IREFIN
DB0 (LSB)
DB1
DB2
DB3
DB4
DB5
DB6
DB7
J1
J1
J1
J1
J1
J1
J1
4
24.9
R2
10
12
14
–17–
2
4
6
8
AD768
3
5
U1
50
T1
4:1
(MSB) DB15
A
(+5V) V
(–5V) V
LADCOM
1
24.9
CLOCK
R3
IOUTB
DCOM
DB14
DB13
DB12
DB11
DB10
6
DB9
DB8
J1
J1
J1
J1
J1
J1
J1
EE
DD
16
18
1
20
22
24
26
28
28
27
26
25
24
23
22
21
20
19
18
17
16
15
2
A
JP2
JP1
JP3
JP4
A
A
J1
J1
J1
J1
J1
J1
100
C3
1µF
C4
1µF
R9
30
32
34
36
38
40
1
2
B
C17
0.1µF
C19
0.1µF
R6
JP5
47µF, 25V
47µF, 25V
47µF, 25V
47µF, 25V
C11
C13
C15
C9
2
3
A
AGND CONNECTED TO DGND
U3
IN BETWEEN PINS 5 AND 25
ON GND PLANE UNDER U1
AD811
+V
R10
499
–V
R21
R23
R24
R25
R26
R27
R28
R29
CC
A
4
EE
7
0.1µF
A
A
0.1µF
50
C7
6
C8
0.1µF
0.1µF
0.1µF
0.1µF
C14
C10
C12
C16
AD768
0
0
0
0
0
0
0
0
A
A
11
13
15
1
3
5
7
9
J1
J1
J1
J1
J1
J1
J1
J1
DGND
AGND
–V
+V
–5A
+5D
EE
CC