CAT5114_13 Datasheet, PDF (7/15 Pages) ON Semiconductor – 32‐tap Digital Potentiometer (POT)

CAT5114
APPLICATIONS INFORMATION
(a) resistive divider
(b) variable resistance
Figure 6. Potentiometer Configuration
(c) two−port
Applications
V₁ (−)
3
+
A₁
1
R₃
R₄
2_–
+5 V
28
1
7
4
CAT5113/5114
V₂ (+)
R₂
R₁
R₂
– ^A2
6
5⁺
7
+5 V
9 – ⁴ A₃
10
+
8
11
V_O
R₃
R₄
+2.5 V
A₁ = A₂ = A₃ = ¹/₄ LM6064
R₂ = R₃ = R₄ = 5 kW
R_POT = 10 kW
Figure 7. Programmable Instrumentation
Amplifier
+5 V
2
1
8
R_A
7
4
R_B
CAT5114
C
R₁
6
pR_POT
4
7
3 ^{5 (1−p)RPOT}
R₂
6
+5 V
8
3
555
5
0.01 mF
0.003 mF
2
1
0.01 mF
Figure 8. Programmable Sq. Wave Oscillator (555)
100 kW
V_OUT
V_IN (UNREG)
2952
SHUTDOWN
1.23 V
SD FB
GND
+5 V
1 mF
28
1
7
CAT5113/5114 ⁵
4
R₁
11 kW
R₂
820 W
3
R₃
10 kW
6
0.1 mF
V_O (REG)
6.8 mF
I_S
+5 V
28
1
7
CAT5113/5114
4
330 W
2 ^{+5 V}
–⁷
3_{+ 4}
pR (1−p)R
65 3
10 k
A₁
6
330 W
1 MW
+5 V
2_–
7
A₂
3₊
6
4
LT1097
V_O
+2.5 V
Figure 9. Programmable Voltage Regulator
Figure 10. Programmable I to V Convertor
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