THS4302_14 Datasheet, PDF (10/28 Pages) Texas Instruments – WIDEBAND FIXED-GAIN AMPLIFIER

THS4302
SLOS403H – OCTOBER 2002 – REVISED AUGUST 2006
TYPICAL THS4302 CHARACTERISTICS (5 V) (continued)
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POWER-DOWN OUTPUT
IMPEDANCE
vs
FREQUENCY
1000
100
V_S = 5 V
10
100 k
1M
10 M 100 M
1G
f − Frequency − Hz
Figure 31.
TURNON AND TURNOFF TIMES
DELAY TIME
80
3
70
2
60
1
50
0
40
−1
30
−2
20
10
0
−10
−15 0
−3
R_L = 100 Ω
−4
V_S = 5 V
−5
−6
15 30 45 60 75
t − Time − µs
Figure 32.
POWER-DOWN S-PARAMETER
vs
FREQUENCY
10
V_S = 5 V and 3 V
0
S22
−10 ^RG
RF
C
−20
−
−30 _{50 Ω}
−40 ^Source
+
50 Ω
50 Ω
50 Ω
S11
−50
−60
−70
S12
−80
−90
−100
1M
10 M
100 M 1 G
f − Frequency − Hz
Figure 33.
10 G
TYPICAL THS4302 CHARACTERISTICS (3 V)
SMALL SIGNAL
FREQUENCY RESPONSE
16
14
12
10
8
6
4
R_L = 100 Ω
V_O = 100 mV
2 ^{VS = 3 V}
0
100 k
1 M 10 M 100 M 1 G
f − Frequency − Hz
Figure 34.
10 G
OUTPUT VOLTAGE
vs
LOAD RESISTANCE
2.25
2
V_S = 3 V
T_A = −40 to 85°C
1.75
1.5
1.25
1
0.75
1
10
100
R_L − Load Resistance − Ω
Figure 37.
1000
LARGE SIGNAL
FREQUENCY RESPONSE
16
14
12
10
8
6
4 ^{RL = 100 Ω}
V_O = 0.5 V
2 ^VS ^{= 3 V}
0
100 k
1 M 10 M 100 M 1G
f − Frequency − Hz
Figure 35.
10 G
CAPACITIVE LOAD
FREQUENCY RESPONSE
1
R_(ISO) = 24.9 Ω,
0.5
C_L = 10 pF
0
−0.5
−1
−1.5
−2
R_(ISO) = 8 Ω,
C_L = 100 pF
R_(ISO) = 12.1 Ω,
C_L = 47 pF
−2.5 R_L = 100 Ω,
V_S = 5 V
−3
10 M
100 M
1G
f − Frequency − Hz
Figure 38.
SLEW RATE
vs
OUTPUT VOLTAGE
4000
3500
3000
2500
2000
1500
Fall
Rise
1000
500
R_L = 100 Ω
V_S = 3 V
0
0 0.25 0.5 0.75 1 1.25 1.5
V_O − Output Voltage − V
Figure 36.
14.04
14.02
GAIN
vs
CASE TEMPERATURE
V_S = 3 V
14
13.98
13.96
13.94
13.92
−40−30−20−10 0 10 20 30 40 50 60 70 80 90
Case Temperature − °C
Figure 39.
10
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