CAT525 CATALYST [Catalyst Semiconductor], CAT525 Datasheet - Page 10

• Manufacturer Part Number: CAT525
• Manufacturer: CATALYST [Catalyst Semiconductor]

CAT525
APPLICATION CIRCUITS (Cont.)
Doc. No. 25078-00 4/01 - A M-1
CONTROL
& DATA
CONTROL
& DATA
+5V
+5V
GND
GND
OPT 505
CAT525
CAT525
V DD
V DD
2.2K
DPP1
DPP2
DPP1
DPP2
Current Source with 4 Decades of Resolution
Current Sink with 4 Decades of Resolution
V
V
V
V REF
REF
REF
REF
L
H
L
51K
4.7 A
+5V
LM385-2.5
5M
5M
10K
10K
5M
10K
10
LM385-2.5
–
+
–
+
-15V
+
–
+
–
+15V
5M
5M
10K
5M
+
–
+15V
–
+
BS170P
BS170P
39 1W
39
2N7000
2N7000
3.9K
10K
39 1W
39
1W
3.9K
10K
-15V
I
SOURCE
1W
I
TIP 29
SINK
TIP 30
= 2 - 255 mA
= 2 - 255 mA
1 mA steps
5 A steps
1 mA steps
5 A steps