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LM324-N-MIL Datenblatt(Datasheet) 10 Page - Texas Instruments

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Teile-Nr. LM324-N-MIL
Beschreibung  Low-Power, Quad-Operational Amplifier
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Hersteller  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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10
LM324-N-MIL
SNOSD66 – JUNE 2017
www.ti.com
Product Folder Links: LM324-N-MIL
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Copyright © 2017, Texas Instruments Incorporated
8
Application and Implementation
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
8.1 Application Information
The LM324-N-MIL amplifier is specified for operation from 3 V to 32 V (±1.5 V to ±16 V). Many of the
specifications apply from –40°C to 125°C. Parameters that can exhibit significant variance with regards to
operating voltage or temperature are presented in Typical Characteristics.
8.2 Typical Applications
Figure 13 emphasizes operation on only a single power supply voltage. If complementary power supplies are
available, all of the standard op amp circuits can be used. In general, introducing a pseudo-ground (a bias
voltage reference of V+/2) will allow operation above and below this value in single power supply systems. Many
application circuits are shown which take advantage of the wide input common-mode voltage range which
includes ground. In most cases, input biasing is not required and input voltages which range to ground can easily
be accommodated.
8.2.1 Non-Inverting DC Gain (0 V Input = 0 V Output)
*R not needed due to temperature independent IIN
Figure 13. Non-Inverting Amplifier with G = 100
8.2.1.1 Design Requirements
For this example application, the required signal gain is a non-inverting 100x±5% with a supply voltage of 5 V.
8.2.1.2 Detailed Design Procedure
Using the equation for a non-inverting gain configuration, Av = 1+R2/R1. Setting the R1 to 10 kΩ, R2 is 99 times
larger than R1, which is 990 kΩ. A 1MΩ is more readily available, and provides a gain of 101, which is within the
desired specification.




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