BUF602 Datasheet, PDF (13/22 Pages) Texas Instruments – High-Speed, Closed-Loop Buffer

BUF602
www.ti.com
TYPICAL CHARACTERISTICS: V_S = +3.3V
At T_A = +25°C and R_L = 100Ω to V_S/2, unless otherwise noted.
SBOS339 – OCTOBER 2005
BUFFER BANDWIDTH vs OUTPUT VOLTAGE
3
R_L = 100Ω
0
V_O = 0.5V_PP
−3
V_O = 0.2V_PP
−6
V_O = 1V_PP
−9
−12
−15
−18
1M
10M
100M
Frequency (Hz)
1G 2G
Figure 23.
HARMONIC DISTORTION vs FREQUENCY
−40
R_L = 500Ω
−45 V_O = 1V_PP
−50
−55
3rd−Harmonic
−60
−65
−70
2nd−Harmonic
−75
−80
1
10
100
Frequency (MHz)
Figure 24.
BUFFER GAIN FLATNESS
0.5
V_O = 0.5V_PP
0.4 _{RL = 100Ω}
0.3
0.2
0.1
0.0
−0.1
−0.2
−0.3
−0.4
−0.5
1
10
100
300
Frequency (MHz)
Figure 25.
5MHz HARMONIC DISTORTION vs LOAD RESISTANCE
−50
f = 5MHz
−55 ^{VO = 1VPP}
−60
3rd−Harmonic
−65
−70
2nd−Harmonic
−75
−80
100
1k
Load Resistance (Ω )
Figure 26.
BUFFER PULSE RESPONSE
2.0 _{RL = 100Ω}
2.7
1.9 ^{f = 40MHz}
2.4
1.8
2.1
1.7
Small−Signal
Large−Signal
1.8
1.6
1.65V_DC ± 0.1V
Left Scale
1.65V_DC ± 0.7V
Right Scale
1.5
1.5
1.2
1.4
0.9
1.3
0.6
Time (2ns/div)
Figure 27.
HARMONIC DISTORTION vs OUTPUT VOLTAGE
−30
f = 5MHz
−40 ^{RL = 500Ω}
−50
3rd−Harmonic
−60
−70
2nd−Harmonic
−80
−90
0.50
0.75
1.00
1.25
Output Voltage (V_PP)
1.50
Figure 28.
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