OP177_06 Datasheet, PDF (11/16 Pages) Analog Devices – Ultraprecision Operational Amplifier

OP177
BASIC CURRENT SOURCE
R₃
1kΩ
R₁
100kΩ
V_IN
2_–
R₂
OP177 ⁶
100kΩ
3₊
R₅
R₄
10Ω
990Ω
100mA CURRENT SOURCE
R₃
V_IN
R₁
R₂
2_–
OP177
3₊
6 ^50Ω
R₄
I_OUT ≤ 15mA
+15V
2N2222
2N2907
R₅
–15V
I_OUT ≤ 100mA
Figure 29. Bilateral Current Source
I_OUT
=
V_IN
R₃
R₁ × R₅
GIVEN R₃ = R₄ + R₅, R₁ = R₂
+15V
0.1µF
2_– ⁷
OP177 ⁶
V_IN
3
+
4 _0.1µF
1kΩ
1kΩ
+15V
C₁
30pF
0.1µF
D₁
1N4148
2N4393
2_– ⁷
OP177 ⁶
3₊
4
R₃
0.1µF
2kΩ
–15V
–15V
Figure 30. Precision Absolute Value Amplifier
V_OUT
0 < V_OUT < 10V
+15V
0.1µF
2_– ⁷
OP177 ⁶
V_IN
1kΩ 3
+
4
0.1µF
1kΩ
1N4148
NC
2N930
C_H
+15V
0.1µF
2_– ⁷
AD820 ⁶
1kΩ _{3 +}
4 _0.1µF
V_OUT
–15V
RESET 1kΩ
–15V
Figure 31. Precision Positive Peak Detector
Rev. E | Page 11 of 16