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THS3096PWPR データシート(PDF) 16 Page - Texas Instruments

部品番号 THS3096PWPR
部品情報  HIGH-VOLTAGE, LOW-DISTORTION, CURRENT-FEEDBACK OPERATIONAL AMPLIFIERS
PDF  34 Pages
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

THS3096PWPR データシート(HTML) 16 Page - Texas Instruments

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APPLICATION INFORMATION
WIDEBAND, NONINVERTING OPERATION
_
+
RF
909
Ω
49.9
Ω
0.1
µF
6.8
µF
−VS
−15 V
RG
50
Ω Source
+
VI
0.1
µF
6.8
µF
+
+VS
15 V
909
Ω
49.9
Ω
50
Ω LOAD
THS3092
THS3096
SLOS428A – DECEMBER 2003 – REVISED FEBRUARY 2004
Current-feedback amplifiers are highly dependent on
the feedback resistor RF for maximum performance
The THS3092/6 are unity gain stable 135-MHz
and stability. Table 1 shows the optimal gain setting
current-feedback operational amplifiers, designed to
resistors RF and RG at different gains to give
operate from a
±5-V to ±15-V power supply.
maximum bandwidth with minimal peaking in the
Figure 52 shows the THS3092 in a noninverting gain
frequency response. Higher bandwidths can be
of 2-V/V configuration typically used to generate the
achieved, at the expense of added peaking in the
performance
curves.
Most
of
the
curves
were
frequency response, by using even lower values for
characterized using signal sources with 50-
Ω source
RF.
Conversely,
increasing
RF
decreases
the
impedance,
and
with
measurement
equipment
bandwidth, but stability is improved.
presenting a 50-
Ω load impedance.
Table 1. Recommended Resistor Values for
Optimum Frequency Response
THS3092 and THS3096 RF and RG values for minimal peaking
with RL = 100 Ω
SUPPLY VOLTAGE
GAIN (V/V)
RG (Ω)
RF (Ω)
(V)
±15
--
1.1 k
1
±5
--
1.1 k
±15
909
909
2
±5
909
909
±15
178
715
5
±5
178
715
±15
66.5
604
10
±5
66.5
604
-1
±15 and ±5
909
909
Figure 52. Wideband, Noninverting Gain
-2
±15 and ±5
402
806
Configuration
-5
±15 and ±5
143
715
-10
±15 and ±5
60.4
604
16



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