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PDF TL081 Data sheet ( Hoja de datos )
| Número de pieza | TL081 | |
| Descripción | WIDE BANDWIDTH JFET INPUT OPERATIONAL AMPLIFIER | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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December 1995
TL081 Wide Bandwidth JFET
Input Operational Amplifier
General Description
The TL081 is a low cost high speed JFET input operational
amplifier with an internally trimmed input offset voltage
(BI-FET IITM technology) The device requires a low supply
current and yet maintains a large gain bandwidth product
and a fast slew rate In addition well matched high voltage
JFET input devices provide very low input bias and offset
currents The TL081 is pin compatible with the standard
LM741 and uses the same offset voltage adjustment circuit-
ry This feature allows designers to immediately upgrade the
overall performance of existing LM741 designs
The TL081 may be used in applications such as high speed
integrators fast D A converters sample-and-hold circuits
and many other circuits requiring low input offset voltage
low input bias current high input impedance high slew rate
and wide bandwidth The devices has low noise and offset
voltage drift but for applications where these requirements
Typical Connection
are critical the LF356 is recommended If maximum supply
current is important however the TL081C is the better
choice
Features
Y Internally trimmed offset voltage
Y Low input bias current
Y Low input noise voltage
Y Low input noise current
Y Wide gain bandwidth
Y High slew rate
Y Low supply current
Y High input impedance
Y Low total harmonic distortion AV e 10
RL e 10k VO e 20 Vp-p
BW e 20 Hzb20 kHz
Y Low 1 f noise corner
Y Fast settling time to 0 01%
15 mV
50 pA
25 nV 0Hz
0 01 pA 0Hz
4 MHz
13 V ms
1 8 mA
1012X
k0 02%
50 Hz
2 ms
Simplified Schematic
Connection Diagram
TL H 8358 – 1
Dual-In-Line Package
TL H 8358 – 2
BI-FET IITM is a trademark of National Semiconductor Corp
C1995 National Semiconductor Corporation TL H 8358
Order Number TL081CP
See NS Package Number N08E
TL H 8358 – 4
RRD-B30M125 Printed in U S A
1 page  
Pulse Response
Small Signal Inverting
Small Signal Non-Inverting
Large Signal Inverting
TL H 8358 – 7
Large Signal Non-Inverting
TL H 8358 – 13
TL H 8358 – 14
Current Limit (RL e 100X)
TL H 8358 – 15
Application Hints
The TL081 is an op amp with an internally trimmed input
offset voltage and JFET input devices (BI-FET II) These
JFETs have large reverse breakdown voltages from gate to
source and drain eliminating the need for clamps across the
inputs Therefore large differential input voltages can easily
be accommodated without a large increase in input current
The maximum differential input voltage is independent of
the supply voltages However neither of the input voltages
should be allowed to exceed the negative supply as this
TL H 8358 – 16
will cause large currents to flow which can result in a de-
stroyed unit
Exceeding the negative common-mode limit on either input
will force the output to a high state potentially causing a
reversal of phase to the output
Exceeding the negative common-mode limit on both inputs
will force the amplifier output to a high state In neither case
does a latch occur since raising the input back within the
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet TL081.PDF ] | |
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