THS4505 Datasheet, PDF (18/38 Pages) Texas Instruments – WIDEBAND, LOW-DISTORTION, FULLY DIFFERENTIAL AMPLIFIERS

THS4504
THS4505
SLOS363C – AUGUST 2002 – REVISED MARCH 2004
TYPICAL CHARACTERISTICS (5 V Graphs) (continued)
OUTPUT VOLTAGE
vs
LOAD RESISTANCE
5
4
3
2
1
V_S = ±5 V
0
T_A = −40 to 85°C
−1
−2
−3
−4
−5
10
100
1000
R_L − Load Resistance − Ω
10000
Figure 65.
SMALL SIGNAL FREQUENCY
RESPONSE
AT V_OCM
3
Gain = 1
2
R_L = 400 Ω
R_f = 499 Ω
P_IN= −20 dBm
1 VS = 5 V
0
−1
−2
−3
1
10
100
f − Frequency − MHz
Figure 68.
1000
CLOSED-LOOP OUTPUT
IMPEDANCE
vs
FREQUENCY
100
Gain = 1
R_L = 400 Ω
R_f = 499 Ω
V_IN = −4 dBm
10 _{VS = 5 V}
1
0.1
0.1
1
10
100
f − Frequency − MHz
Figure 66.
OUTPUT OFFSET VOLTAGE
vs
OUTPUT COMMON-MODE
VOLTAGE
800
600
400
200
0
−200
−400
−600
−800
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
V_OC − Output Common-Mode Voltage − V
Figure 69.
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HARMONIC DISTORTION
vs
OUTPUT COMMON-MODE
VOLTAGE
0
Single-Ended to
−10
Differential Output
Gain = 1, V_O = 2 V_PP
R_f = 499 Ω, V_S = 5 V
−20
−30
HD2, 30 MHz
HD3, 30 MHz
−40
−50
−60
−70 HD2,
HD3, 8 MHz
8 MHz
−80
1
1.5
2 2.5
3 3.5
4
V_OC − Output Common-Mode Voltage − V
Figure 67.
QUIESCENT CURRENT
vs
POWER-DOWN VOLTAGE
25
V_S = 5 V
20
15
10
5
0
0 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.25 2.5
Power-down Voltage − V
Figure 70.
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