CA3078A(2001) Ver la hoja de datos (PDF) - Intersil
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CA3078A Datasheet PDF : 12 Pages
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CA3078, CA3078A
Typical Performance Curves (Continued)
1.5 RESISTOR-CAPACITOR
COMPENSATION
1.25
(R1 - C1 BETWEEN
TERMINALS 1 AND 8)
1
0.75
0.5
CAPACITOR
COMPENSATION
(BETWEEN
TERMINALS 1 AND 8)
0.25
0
0 10 20 30 40 50 60 70 80 90
CLOSED LOOP NON-INVERTING VOLTAGE GAIN (dB)
6 19.1 29.7 40 50 60 70 80 90
CLOSED LOOP INVERTING VOLTAGE GAIN (dB)
Supply Volts: V+ = +6, V- = -6
Quiescent Current (IQ) = 100µA
Ambient Temperature (TA) = 25oC
Load Impedance: RL = 10kΩ, CL = 100pF
Feedback Resistance (RF) = 0.1MΩ
Output Voltage (VOP-P) = 10V
R1 determined for transient
100mV output signal (R1 x C1
response with
= 2.5 x 10-6)
10%
overshoot
on
a
FIGURE 23. SLEW RATE vs CLOSED LOOP GAIN FOR
IQ = 100mA - CA3078
0.6 RESISTOR-CAPACITOR
COMPENSATION
0.5
(R1 - C1 BETWEEN
TERMINALS 1 AND 8)
0.4
CAPACITOR
0.3
COMPENSATION
(BETWEEN
0.2
TERMINALS 1 AND 8)
0.1
0
0 10 20 30 40 50 60 70 80 90
CLOSED LOOP NON-INVERTING VOLTAGE GAIN (dB)
6 19.1 29.7 40 50 60 70 80 90
CLOSED LOOP INVERTING VOLTAGE GAIN (dB)
Supply Volts: V+ = +6, V- = -6
Quiescent Current (IQ) = 20µA
Ambient Temperature (TA) = 25oC
Load Impedance: RL = 10kΩ, CL = 100pF
Feedback Resistance (RF) = 0.1MΩ
Output Voltage (VOP-P) = 10V
R1 determined for transient
100mV output signal (R1 x C1
response with
= 2 x 10-6)
10%
overshoot
on
a
FIGURE 24. SLEW RATE vs CLOSED LOOP GAIN FOR
IQ = 20mA - CA3078A
1000
100
10
CAPACITOR
COMPENSATION
(BETWEEN
TERMINALS 1 AND 8)
RESISTOR-CAPACITOR
COMPENSATION
(R1 - C1 BETWEEN
TERMINALS 1 AND 8)
1000
100
10
CAPACITOR
COMPENSATION
(BETWEEN
TERMINALS 1 AND 8)
RESISTOR-CAPACITOR
COMPENSATION
(R1 - C1 BETWEEN
TERMINALS 1 AND 8)
1
0 10 20 30 40 50 60 70 80 90
CLOSED LOOP NON-INVERTING VOLTAGE GAIN (dB)
6 19.1 29.7 40 50 60 70 80 90
CLOSED LOOP INVERTING VOLTAGE GAIN (dB)
Supply Volts: V+ = +6, V- = -6
Quiescent Current (IQ) = 100µA
Ambient Temperature (TA) = 25oC
Load Impedance: RL = 10kΩ, CL = 100pF
Feedback Resistance (RF) = 0.1MΩ
Output Voltage (VOP-P) = 100mV
R1 determined for transient
100mV output signal (R1 x C1
response with
= 2.5 x 10-6)
10%
overshoot
on
a
FIGURE 25. PHASE COMPENSATION CAPACITANCE vs
CLOSED LOOP GAIN - CA3078
1
0 10 20 30 40 50 60 70 80 90
CLOSED LOOP NON-INVERTING VOLTAGE GAIN (dB)
6 19.1 29.7 40 50 60 70 80 90
CLOSED LOOP INVERTING VOLTAGE GAIN (dB)
Supply Volts: V+ = +6, V- = -6
Quiescent Current (IQ) = 20µA
Ambient Temperature (TA) = 25oC
Load Impedance: RL = 10kΩ, CL = 100pF
Feedback Resistance (RF) = 0.1MΩ
Output Voltage (VOP-P) = 100mV
R1 determined for transient
100mV output signal (R1 x C1
response with
= 2 x 10-6)
10%
overshoot
on
a
FIGURE 26. PHASE COMPENSATION CAPACITANCE vs
CLOSED LOOP GAIN - CA3078A
9
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