MC33078, MC33079
14
12
Am, GAIN MARGIN (dB)
10
R
1
70
Gain
Phase
−
+
V
O
60
50
40
30
20
10
8.0
6.0
4.0
2.0
0
R
2
V
CC
= +15 V
V
EE
= −15 V
R
T
= R
1
+R
2
A
V
= +100
V
O
= 0 V
T
A
= 25°C
10
100
1.0 k
10 k
R
T
, DIFFERENTIAL SOURCE RESISTANCE (W)
0
100 k
Figure 30. Phase Margin and Gain Margin versus
Differential Source Resistance
V O , OUTPUT VOLTAGE (5.0 V/DIV)
V
CC
= +15 V
V
EE
= −15 V
A
V
= −1.0
R
L
= 2.0 kW
C
L
= 100 pF
T
A
= 25°C
V O , OUTPUT VOLTAGE (5.0 V/DIV)
V
CC
= +15 V
V
EE
= −15 V
A
V
= +1.0
R
L
= 2.0 kW
C
L
= 100 pF
T
A
= 25°C
t, TIME (2.0
ms/DIV)
t, TIME (2.0
ms/DIV)
Figure 31. Inverting Amplifier Slew Rate
Figure 32. Non−inverting Amplifier Slew Rate
V
CC
= +15 V
V
EE
= −15 V
R
L
= 2.0 kW
C
L
= 100 pF
A
V
= +1.0
T
A
= 25°C
e n , INPUT NOISE VOLTAGE (100 nV/DIV)
V O , OUTPUT VOLTAGE (5.0 V/DIV)
V
CC
= +15 V
V
EE
= −15 V
BW = 0.1 Hz to 10 Hz
T
A
= 25°C
t, TIME (200
ms/DIV)
t, TIME (1.0 sec/DIV)
Figure 33. Non−inverting Amplifier Overshoot
Figure 34. Low Frequency Noise Voltage
versus Time
http://onsemi.com
9
φ
m , PHASE MARGIN (DEGREES)
ONSEMI [ ON SEMICONDUCTOR ]
