VCA810_16 Datasheet, PDF (11/40 Pages) Texas Instruments – VCA810 High Gain Adjust Range, Wideband and Variable Gain Amplifier

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VCA810
SBOS275G – JUNE 2003 – REVISED DECEMBER 2015
7.7 Typical Characteristics
At R_L = 500 Ω and V_IN = single-ended input on V+ with V− at ground, V_S = ±5 V, unless otherwise noted.
60
V_IN = 10mV_PP, V_OUT = 1V_PP
40
V_IN = 100mV_PP, V_OUT = 1V_PP
20
V_IN = 1V_PP, V_OUT = 1V_PP
0
V_OUT = 2V_PP, V_IN = 200mV_PP
-20
V_OUT = 2V_PP, V_IN = 20mV_PP
-40
-60
1
10
100
Frequency (MHz)
1000
Figure 1. Small-Signal Frequency Response
150
G = -20dB
100
V_IN = 2V_PP
50
G = -40dB
0
-50
-100
-150
Time (20ns/div)
Figure 3. Attenuated Pulse Response
1.2
G = 0dB to -40dB, V_IN = 1V_DC
1.0
0.8
0.6
0.4
0.2
0
-0.2
G = 0dB to +40dB, V_IN = 10mV_DC
Time (20ns/div)
Figure 5. Gain Control Pulse Response
3
R_L = 500W
0
-3
-6
-9
-12
-15
V_C = -1V_DC + 10mV_PP
-18
1
10
100
Frequency (MHz)
Figure 2. Gain Control Frequency Response
0.6
G = +40dB
0.4
V_IN = 10mV_PP
0.2
G = +20dB
0
-0.2
-0.4
-0.6
Time (20ns/div)
Figure 4. High Gain Pulse Response
60
Specified Operating Range
40
20
0
-20
-40
-60
Output Disabled for
-80
+0.15V £ V_C £ +2V
-100
0.5
0
-0.5 -1.0 -1.5 -2.0 -2.5
Control Voltage, V_C (V)
Figure 6. Gain vs Control Voltage
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