NATIONAL SEMICONDUCTOR LM7341 Owner's Manual
Summary
The LM7341 is a compact, high-performance operational amplifier featuring rail-to-rail input and output capability, making it ideal for low voltage signal conditioning. This SOT-23 package component delivers excellent performance with a 4.6 MHz gain bandwidth and robust stability across extreme temperatures (-40°C to 125°C). The manual provides comprehensive details on the device's electrical characteristics, including high Common Mode Rejection Ratio (CMRR) and wide voltage compatibility (up to $\pm 15V$). It is the professional choice for demanding applications such as automotive electronics, industrial sensing systems, and battery-powered devices.
Page 1 Text Content
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October 13, 2008
LM7341 Rail-to-Rail Input/Output ±15V, 4.6 MHz GBW, Operational Amplifier in SOT-23 Package General Description Features The LM7341 is a rail-to-rail input and output amplifier in a (VS = ±15V, TA = 25°C, typical values.) small SOT-23 package with a wide supply voltage and tem- Tiny 5-pin SOT-23 package saves space perature range. The LM7341 has a 4.6 MHz gain bandwidth
Greater than rail-to-rail input CMVR −15.3V to 15.3V
and a 1.9 volt per microsecond slew rate, and draws 0.75 m A
Rail-to-rail output swing −14.84V to 14.86V
of supply current at no load.
Supply current 0.7 m A
The LM7341 is tested at −40°C, 125°C and 25°C with modern
Gain bandwidth 4.6 MHz
automatic test equipment. Detailed performance specifica-
Slew Rate 1.9 V/µs
tions at 2.7V, ±5V, and ±15V and over a wide temperature
Wide supply range 2.7V to 32V
range make the LM7341 a good choice for automotive, in-
High power supply rejection ratio 106 d B
dustrial, and other demanding applications.
High common mode rejection ratio 115 d B
Greater than rail-to-rail input common mode range with a
Excellent gain 106 d B
minimum 76 d B of common mode rejection at ±15V makes
Temperature range −40°C to 125°C
the LM7341 a good choice for both high and low side sensing
applications. Tested at −40°C, 125°C and 25°C at 2.7V, ±5V and ±15V
LM7341 performance is consistent over a wide voltage range,
making the part useful for applications where the supply volt- Applications
age can change, such as automotive electrical systems and
Automotive
battery powered electronics.
Industrial robotics
The LM7341 uses a small SOT23-5 package, which takes up
Sensor output buffers
little board space, and can be placed near signal sources to
Multiple voltage power supplies
reduce noise pickup.
Reverse biasing of photodiodes Low current optocouplers High side sensing Comparator Battery chargers Test point output buffers Below ground current sensing
Typical Performance Characteristics
Open Loop Frequency Response Open Loop Frequency Response
© 2008 National Semiconductor Corporation www.national.com
Page Summary Contents For NATIONAL SEMICONDUCTOR LM7341 Owner's Manual
Manual Details
| Brand | National |
|---|---|
| Pages | 20 |
| File Size | 575.00 KB |
| Published | June 01, 2026 |
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Frequently Asked Questions
What is the function of the LM7341?
It is a rail-to-rail input and output operational amplifier available in a small SOT-23 package.
What types of applications suit the LM7341 due to its wide voltage range?
It is suitable for automotive, industrial robotics, battery powered electronics, and other demanding applications where supply voltage can change.
How does the amplifier perform at extreme temperatures?
The device operates from -40°C to 125°C, making it good for both high and low side sensing in harsh environments.
What is the maximum operating supply voltage range?
The recommended operating range is 2.7V to 32V.