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LM143 Datasheet

  • LM143

  • High Voltage Operational Amplifier

  • 12頁

  • NSC

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LM143 LM343 High Voltage Operational Amplifier
February 1995
LM143 LM343 High Voltage
Operational Amplifier
General Description
The LM143 is a general purpose high voltage operational
amplifier featuring operation to
g
40V complete input over-
voltage protection up to
g
40V and input currents compara-
ble to those of other super-b op amps Increased slew rate
together with higher common-mode and supply rejection
insure improved performance at high supply voltages Oper-
ating characteristics in particular supply current slew rate
and gain are virtually independent of supply voltage and
temperature Furthermore gain is unaffected by output
loading at high supply voltages due to thermal symmetry on
the die The LM143 is pin compatible with general purpose
op amps and has offset null capability
Application areas include those of general purpose op
amps but can be extended to higher voltages and higher
output power when externally boosted For example when
used in audio power applications the LM143 provides a
power bandwidth that covers the entire audio spectrum In
addition the LM143 can be reliably operated in environ-
ments with large overvoltage spikes on the power supplies
where other internally-compensated op amps would suffer
catastrophic failure
The LM343 is similar to the LM143 for applications in less
severe supply voltage and temperature environments
Features
Y
Y
Y
Y
Y
g
4 0V to
g
40V
Wide supply voltage range
g
37V
Large output voltage swing
g
38V
Wide input common-mode range
Input overvoltage protection
Full
g
40V
Supply current is virtually independent of supply voltage
and temperature
Unique Characteristics
Y
Y
Y
Y
Y
Y
Y
Low input bias current
8 0 nA
Low input offset current
1 0 nA
High slew rate essentially independent of temperature
and supply voltage
2 5V
ms
High voltage gain virtually independent of resistive
loading temperature and supply voltage
100k min
Internally compensated for unity gain
Output short circuit protection
Pin compatible with general purpose op amps
Connection Diagram
Metal Can Package
Top View
TL H 7783 鈥?1
Order Number LM143H LM143H 883 or LM343H
See NS Package Number H08C
Available per SMD
7800303
TL H 7783
RRD-B30M115 Printed in U S A
C
1995 National Semiconductor Corporation

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