AD9712BAN Analog Devices, AD9712BAN Datasheet - Page 11

• Manufacturer Part Number: AD9712BAN
• Description: 12-Bit/ 100 MSPS D/A Converters
• Manufacturer: Analog Devices

REV. B
D
12
TTL
R
IN
+5V
2.5k
R
REFERENCE
D
TTL Input Buffer
11
CONTROL
AMP IN
2R
OUT
16pF
R
10 k
D
20
19
10
Full-Scale Current Control Loop
2R
R
R-2R DAC (for 6 LSBs)
24
I
D
14
OUT
9
Output Circuit
R
+
SET
–
CONTROL
2R
AMP
–V S
R
D
ECL
8
I
IN
CONTROL
OUT
AMP OUT
16
2R
Figure 11. Equivalent Circuits
18
16pF
R
ECL Input Buffer
D
–5.2 V
7
REFERENCE
2R
D
17
R
IN
1
–
–11–
ANALOG
RETURN
D
6
13
2.5k
–5.2 V
14
13
or
16
ECL V
ANALOG
I
RETURN
I
OUT
OUT
MID
V
BIAS
REFERENCE
IN
CONTROL
Control Amplifier Input
Control Amp Output
Reference Output
–5.2 V
AMP IN
AD9712B/AD9713B
17
–5.2 V
Reference Input
19
–5.2 V
–5.2 V
138 CURRENT SOURCES
20
18
REFERENCE
CONTROL
AMP OUT
OUT