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參數(shù)資料
| 型號： | LM6118 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Fast Settling Dual Operational Amplifiers |
| 中文描述： | 快速沉淀雙路運算放大器 |
| 文件頁數(shù)： | 6/13頁 |
| 文件大小： | 836K |
| 代理商： | LM6118 |
Typical Performance Characteristics
(Continued)
Application Information
General
The LM6118/LM6218 are high-speed, fast-settling dual
op-amps. To insure maximum performance, circuit board lay-
out is very important. Minimizing stray capacitance at the in-
puts and reducing coupling between the amplifier’s input and
output will minimize problems.
Supply Bypassing
To assure stability, it is recommended that each power sup-
ply pin be bypassed with a 0.1 μF low inductance capacitor
near the device. If high frequency spikes from digital circuits
or switching supplies are present, additional filtering is rec-
ommended. To prevent these spikes from appearing at the
output, R-C filtering of the supplies near the device may be
necessary.
Power Dissipation
These amplifiers are specified to 20 mA output current. If ac-
companied with high supply voltages, relatively high power
dissipation in the device will occur, resulting in high junction
temperatures. In these cases the package thermal resis-
tance must be taken into consideration. (See Note 5 under
Electrical Characteristics.) For high dissipation, an N pack-
age with large areas of copper on the pc board is recom-
mended.
Amplifier Shut Down
If one of the amplifiers is not used, it can be shut down by
connecting both the inverting and non-inverting inputs to the
V pin. This will reduce the power supply current by approxi-
mately 25%.
Capacitive Loading
Maximum capacitive loading is about 50 pF for a closed-loop
gain of +1, before the amplifier exhibits excessive ringing
and becomes unstable. A curve showing maximum capaci-
tive loads, with different closed-loop gains, is shown in the
Typical Performance Characteristics section.
To drive larger capacitive loads at low closed-loop gains, iso-
late the amplifier output from the capacitive load with 50
.
Connect a small capacitor directly from the amplifier output
to the inverting input. The feedback loop is closed from the
isolated output with a series resistor to the inverting input.
Amplifier to Amplifier Coupling
DS010254-23
Settling Time, Vs =
±
15V
DS010254-7
Step Response, Av = +1, Vs =
±
15V
DS010254-8
Step Response, Av = 1, Vs =
±
15V
DS010254-9
www.national.com
6
相關PDF資料 |
PDF描述 |
|---|---|
| LM6218AN | Fast Settling Dual Operational Amplifiers |
| LM6218N | Fast Settling Dual Operational Amplifiers |
| LM6118N | Fast Settling Dual Operational Amplifiers |
| LM6218WM | UNSHLD NULL MODEM CBL DB25 MALE - DB25 MALE |
| LM73_06 | 2.7V, SOT-23, 11-to-14 Bit Digital Temperature Sensor with 2-Wire Interface |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM6118H | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
| LM6118J | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
| LM6118J/883 | 制造商:Texas Instruments 功能描述:OP Amp Dual GP ±20V 8-Pin CDIP |
| LM6118J/883 WAF | 制造商:Texas Instruments 功能描述: |
| LM6118N | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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