CAT525 Datasheet, PDF (12/16 Pages) Catalyst Semiconductor – Configured Digitally Programmable Potentiometer (DPP™): Programmable Voltage Applications

CAT525
Not Recommended for New Design
CONTROL
& DATA
+5V
2.2kΩ
V_DD
4.7µF
V_REFH
DPP1
CAT525
+5V
10kΩ
LM385-2.5
+15V
+
–
10kΩ
DPP2
GND
V_REFL
5MΩ
+
–
5MΩ
I_SINK = 2 ÷ 255mA
2N7000
39Ω 1W
39Ω 1W
2N7000
3.9kΩ
1mA steps
5µA steps
10kΩ
10kΩ
–
+
TIP30
-15V
Current Sink with 4 Decades of Resolution
51kΩ
+15V
+5V
V_DD
V_REFH
DPP1
5MΩ
CONTROL
& DATA
CAT525
10kΩ
+
TIP29
–
10kΩ
5MΩ
–
+
39Ω 1W
39Ω 1W
BS170P
1mA steps
Doc. No. MD-2001 Rev. J
DPP2
5MΩ
5MΩ
3.9kΩ
GND
V_REFL
–
+
BS170P
5µA steps
LM385-2.5
-15V
I_SOURCE = 2 ÷ 255mA
Current Source with 4 Decades of Resolution
12
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Characteristics subject to change without notice