參數(shù)資料
型號(hào)： THS4011JG
廠(chǎng)商： Texas Instruments, Inc.
英文描述： 290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
中文描述： 290 - MHz的低失真高速放大器
文件頁(yè)數(shù)： 17/30頁(yè)
文件大小： 439K
代理商： THS4011JG
THS4011, THS4012
290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
SLOS216B – JUNE 1999 – FEBRUARY 2000
17
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
driving a capacitive load
Driving capacitive loads with high performance amplifiers is not a problem as long as certain precautions are
taken. The first is to realize that the THS401x has been internally compensated to maximize its bandwidth and
slew rate performance. When the amplifier is compensated in this manner, capacitive loading directly on the
output will decrease the device’s phase margin leading to high frequency ringing or oscillations. Therefore, for
capacitive loads of greater than 10 pF, it is recommended that a resistor be placed in series with the output of
the amplifier, as shown in Figure 27. A minimum value of 20
should work well for most applications. For
example, in 75-
transmission systems, setting the series resistor value to 75
both isolates any capacitance
loading and provides the proper line impedance matching at the source end.
+
_
THS401x
CLOAD
1.3 k
Input
Output
1.3 k
20
Figure 27. Driving a Capacitive Load
offset nulling
The THS401x has very low input offset voltage for a high-speed amplifier. However, if additional correction is
required, an offset nulling function has been provided on the THS4011. The input offset can be adjusted by
placing a potentiometer between terminals 1 and 8 of the device and tying the wiper to the negative supply. This
is shown in Figure 28.
_
+
THS4011
VCC–
VCC+
0.1
μ
F
0.1
μ
F
10 k
Figure 28. Offset Nulling Schematic
相關(guān)PDF資料
PDF描述
THS4011DGN 290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
THS4011EVM 290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
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THS4011MFK 290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
THS4011MFK 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
THS4011MFKB 制造商:Texas Instruments 功能描述:290-MHZ LOW-DISTORTION VOLTAGE-FEEDBACK
THS4011MJG 制造商:Texas Instruments 功能描述:OP AMP SGL VOLT FDBK 16.5V/33V 8CDIP - Rail/Tube
THS4011MJGB 制造商:Texas Instruments 功能描述:OP Amp Single Volt Fdbk ±16.5V/33V 8-Pin CDIP Tube 制造商:Texas Instruments 功能描述:OP AMP SGL VOLT FDBK 16.5V/33V 8CDIP - Rail/Tube
THS4012 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:290-MHz LOW-DISTORTION HIGH-SPEED AMPLIFIERS
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