MC33178_06 Datasheet, PDF (9/19 Pages) ON Semiconductor – Low Power, Low Noise Operational Amplifiers

MC33178, MC33179
60
50
40
30
20
10
0
−55
C_L = 10 pF
C_L = 100 pF
C_L = 300 pF
V_CC = +15 V
V_EE = −15 V
R_L = 600 W
−25
0
25 50
75 100 125
T_A, AMBIENT TEMPERATURE (°C)
Figure 22. Phase Margin
versus Temperature
12
60
10
V_CC = +15 V
8.0 V_EE = −15 V
R_T = R₁+R₂
6.0
V_O = 0 V
T_A = 25°C
50
Gain Margin
40
30
4.0
R₁
−
2.0 Vin
V_O
+
R₂
0
100
1.0 k
20
Phase Margin
10
0
10 k
100 k
R_T, DIFFERENTIAL SOURCE RESISTANCE (W)
Figure 23. Phase Margin and Gain Margin
versus Differential Source Resistance
18
15
12
9.0
6.0
V_in
3.0
−
+
600 W
60
Phase Margin
V_CC = +15 V
V_EE = −15 V
50
V_O = 0 V
40
Gain Margin
30
V_O
20
C_L
10
0
0
10
100
1.0 k
C_L, OUTPUT LOAD CAPACITANCE (pF)
Figure 24. Open Loop Gain Margin and Phase
Margin versus Output Load Capacitance
150
140
130
120
110
100
100
Drive Channel
V_CC = +15 V
C_EE = −15 V
R_L = 600 W
T_A = 25°C
1.0 k
10 k
100 k
f, FREQUENCY (Hz)
1.0 M
Figure 25. Channel Separation
versus Frequency
10
V_CC = +15 V V_O = 2.0 V_pp
V_EE = −15 V T_A = 25°C
R_L = 600 W
1.0
A_V = 1000
A_V = 100
0.1
A_V = 10
A_V = 1.0
0.01
10
100
1.0 k
10 k
100 k
f, FREQUENCY (Hz)
Figure 26. Total Harmonic Distortion
versus Frequency
500
400
1. A_V = 1.0
2. A_V = 10
3. A_V = 100
300
4. A_V = 1000
V_CC = +15 V
V_EE = −15 V
V_O = 0 V
T_A = 25°C
200
100
3
2
1
4
0
1.0 k
10 k
100 k
1.0 M
10 M
f, FREQUENCY (Hz)
Figure 27. Output Impedance
versus Frequency
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