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參數(shù)資料
| 型號： | 5962-8962401XAX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 運算放大器 |
| 英文描述： | OP-AMP, 6000 uV OFFSET-MAX, 175 MHz BAND WIDTH, CDSO10 |
| 封裝： | CERAMIC, SOIC-10 |
| 文件頁數(shù)： | 15/16頁 |
| 文件大?。?/td> | 530K |
| 代理商： | 5962-8962401XAX |
Simplified Schematic
Applications Tips
The LM6364 has been compensated for gains of 5 or greater
(over specified ranges of temperature, power supply voltage,
and load). Since this compensation involved adding
emitter-degeneration resistors in the op amp’s input stage,
the open-loop gain was reduced as the stability increased.
Gain error due to reduced A
VOL is most apparent at high
gains; thus, the uncompensated LM6365 is appropriate for
gains of 25 or more. If unity-gain operation is desired, the
LM6361 should be used. The LM6361, LM6364, and
LM6365 have the same high slew rate (typically 300 V/s),
regardless of their compensation.
The LM6364 is unusually tolerant of capacitive loads. Most
op amps tend to oscillate when their load capacitance is
greater than about 200 pF (in low-gain circuits). However,
load capacitance on the LM6364 effectively increases its
compensation capacitance, thus slowing the op amp’s re-
sponse and reducing its bandwidth. The compensation is not
ideal, though, and ringing or oscillation may occur in
low-gain circuits with large capacitive loads. To overcompen-
sate the LM6364 for operation at gains less than 5, a series
resistor-capacitor network should be added between the in-
put pins (as shown in the Typical Applications, Noise Gain
Compensation) so that the high-frequency noise gain rises
to at least 5.
Power supply bypassing will improve the stability and tran-
sient response of the LM6364, and is recommended for ev-
ery design. 0.01 F to 0.1 F ceramic capacitors should be
used (from each supply “rail” to ground); if the device is far
away from its power supply source, an additional 2.2 F to
10 F (tantalum) may be required for extra noise reduction.
Keep all leads short to reduce stray capacitance and lead in-
ductance, and make sure ground paths are low-impedance,
especially where heavier currents will be flowing. Stray ca-
pacitance in the circuit layout can cause signal coupling be-
tween adjacent nodes, so that circuit gain unintentionally
varies with frequency.
Breadboarded circuits will work best if they are built using
generic PC boards with a good ground plane. If the op amps
are used with sockets, as opposed to being soldered into the
circuit, the additional input capacitance may degrade circuit
performance.
DS009153-3
www.national.com
8
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參數(shù)描述 |
|---|---|
| 5962-8962701PA | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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