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參數(shù)資料
| 型號： | LM6162 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | High Speed Operational Amplifier |
| 中文描述： | 高速運算放大器 |
| 文件頁數(shù)： | 7/13頁 |
| 文件大?。?/td> | 248K |
| 代理商： | LM6162 |
Application Tips
The LM6362 has been decompensated for a wider gain-
bandwidth product than the LM6361. However, the LM6362
still offers stability at gains of 2 (and
b
1) or greater over the
specified ranges of temperature, power supply voltage, and
load. Since this decompensation involved reducing the emit-
ter-degeneration resistors in the op amp’s input stage, the
DC precision has been increased in the form of lower offset
voltage and higher open-loop gain.
Other op amps in this family include the LM6361, LM6364,
and LM6365. If unity-gain stability is required, the LM6361
should be used. The LM6364 has been decompensated for
operation at gains of 5 or more, with corresponding greater
gain-bandwidth product (125 MHz, typical) and DC preci-
sion. The fully-uncompensated LM6365 offers gain-band-
width product of 725 MHz, typical, and is stable for gains of
25 or more. All parts in this family, regardless of compensa-
tion, have the same high slew rate of 300 V/
m
s (typ).
The LM6362 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 LM6362 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 may occur in low-gain circuits
with large capacitive loads.
Power supply bypassing is not as critical for LM6362 as it is
for other op amps in its speed class. However, bypassing
will improve the stability and transient response of the
LM6362, and is recommended for every design. 0.01
m
F to
0.1
m
F ceramic capacitors should be used (from each sup-
ply ‘‘rail’’ to ground); if the device is far away from its power
supply source, an additional 2.2
m
F to 10
m
F of tantalum
may be required for extra noise reduction.
Keep all leads short to reduce stray capacitance and lead
inductance, and make sure ground paths are low-imped-
ance, especially where heavier currents will be flowing.
Stray capacitance in the circuit layout can cause signal cou-
pling from one pin, input or lead to another, and can cause
circuit gain to unintentionally vary 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 frequency response. At low gains (
a
2 or
b
1), a
feedback capacitor C
f
from output to inverting input will
compensate for the phase lag caused by capacitance at the
inverting input. Typically, values from 2 pF to 5 pF work well;
however, best results can be obtained by observing the am-
plifier pulse response and optimizing C
f
for the particular
layout.
Typical Applications
Offset Voltage Adjustment
TL/H/11061–11
Inverting Amplifier, 30 MHz Bandwidth
Operation
supplies results in wider
bandwidth,
(typ).
on
g
15V
50
MHz
TL/H/11061–12
7
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PDF描述 |
|---|---|
| LM6162N | High Speed Operational Amplifier |
| LM6165W883 | High Speed Operational Amplifier |
| LM6165 | High Speed Operational Amplifier |
| LM6172AMJ-QML | JT 55C 55#20 SKT RECP |
| LM6172AMWG-QML | Circular Connector; No. of Contacts:7; Series:MS27505; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:11; Circular Contact Gender:Pin; Circular Shell Style:Box Mount Receptacle; Insert Arrangement:11-99 RoHS Compliant: No |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM6162E/883 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| LM6162J/883 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:High Speed Operational Amplifier |
| LM6162N | 制造商:Texas Instruments 功能描述:OP AMP HIGH-SPEED |
| LM6162W/883 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:High Speed Operational Amplifier |
| LM6162WG/883 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:High Speed Operational Amplifier |
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