CA3020_00 Datasheet, PDF (4/9 Pages) Intersil Corporation – 8MHz Power Amps For Military, Industrial and Commercial Equipment

CA3020, CA3020A
Test Circuits and Waveforms (Continued)
+
V₂₃
+9V
+2V
10 8 9 7
1
I₇
32
CA3020
CA3020A
3
I₄
300
T_A = -45^oC
25^oC
200
125^oC
100
-45^oC
25^oC
125^oC
12 6 5 4
0
-25 0 25 50 75
75 50 25 0 -25
I₄ “ON”
I₇ “ON”
DIFFERENTIAL AMPLIFIER INPUT, V₂₃ (mV)
FIGURE 2A. TEST SETUP
FIGURE 2B. CHARACTERISTICS WITH R₁₀ SHORTED OUT
FIGURE 2. TYPICAL TRANSFER CHARACTERISTICS
+
V₂₃
1
2
3
10K
+9V
300
+2V
10 8 9 7
1
I₇
32
CA3020
CA3020A
3
I₄
T_A = -45^oC
200 ^25oC
125^oC
100
-45^oC
25^oC
125^oC
12 6 5 4
0
-25 0 25 50 75
75 50 25 0 -25
I₄ “ON”
I₇ “ON”
DIFFERENTIAL AMPLIFIER INPUT, V₂₃ (mV)
FIGURE 3A. TEST SETUP
FIGURE 3B. CHARACTERISTIC WITH R₁₀ IN CIRCUIT
FIGURE 3. TYPICAL TRANSFER CHARACTERISTICS
10 8 9 7
CA3020
CA3020A
+9V
V₇
(MAX I₇ CURRENT
I₇ WITH PIN 2
RETURNED TO GND
THROUGH 10kΩ)
T_A = 25^oC
300
200
100
12 6 5 4
I₄
(MAX I₄ CURRENT
V₄
WITH PIN 3
RETURNED TO GND
THROUGH 10kΩ)
0
0
1
2
3
4
POWER AMPLIFIER COLLECTOR VOLTAGE, V₄, V₇ (V)
FIGURE 4A. TEST SETUP
FIGURE 4B. CHARACTERISTIC
FIGURE 4. “MINIMUM DRIVE” TYPICAL CURRENT-VOLTAGE SATURATION CURVE
4