Datasheet

23
®
DAC7744
FIGURE 12. 4-to-20mA Digitally-Controlled Current Source (1/2 DAC7744).
NC
NC
NC
NC
V
OUT
A Sense
V
OUT
A
V
REF
L AB Sense
V
REF
L AB
V
REF
H AB
V
REF
H AB Sense
V
OUT
B Sense
V
OUT
B
48
47
46
45
44
43
42
41
40
39
38
37
DAC7744
I
OUT
V
PROGRAMMED
R
SENSE
250Ω
I
OUT
V
PROGRAMMED
R
SENSE
250Ω
GND
80kΩ
+1.0V
20kΩ
+V
1000pF
2200pF
+V
OPA2350
100Ω
1000pF
2200pF
100Ω