Operational amplifiers are perhaps the most versatile, important, and widely used components in analog electronic circuits. The construction of analog electronic circuits cannot be imagined without operational amplifiers. An operational amplifier is essentially differential voltage amplifying device. When used with different combinations of capacitors, resistors, transistors, and other electronic devices, there are literally hundreds of op-amp based circuits which can be formed. Operational amplifiers are extensively used in signal conditioning, filtering, buffering, referencing, instrumentation, and analog-to-digital conversion applications. The great advantage of op-amps is that they can be used in negative feedback configuration which makes them very useful for signal processing and control system applications.
What is LM358DR?
The LM358DR is the next generation of industry standard LM358 operational amplifier manufactured by Texas Instruments. The device package houses two high-voltage operational amplifiers. The device features include low offset, unity gain stability, common mode input range to ground, and high differential input voltage capability. The LM358DR provides great value-for-money for the cost-sensitive applications. These devices are able to perform in rugged and rough environments due to high ESD rating and built-in EMI/RF filters. The device is available in 8-pin SOIC package.
Pin Configuration
The pin configuration of the LM358DR operational amplifier is given in the table below:
Pin name |
Pin description |
IN1+, IN1- |
First set of inputs |
IN2+, IN2- |
Second set of inputs |
OUTPUT1 |
First op-amp output |
OUTPUT2 |
Second op-amp output |
V+ |
Positive power supply terminal |
V- |
Negative or ground power supply terminals |
NC |
Not connected |
Features
- Wide input voltage range from 3V to 36V
- 300uA supply current
- 2MHz unity gain bandwidth
- Common mode input range includes ground
- Low input offset voltage of 3mV
- Internal RF and EMI filters
- High ESD rating
Applications
The applications of LM358DR operational amplifier are provided as following:
- Server power supply units
- Merchant network power supply units
- Multi-functional printers
- Switch mode power supplies and mobile chargers
- DC, BLDC, AC induction, PMDC and stepper motor control applications
- PC motherboard circuits
- Air conditioner units
- Washers, dryers, and refrigerators
- AC inverter, string inverters, and central inverters
- Variable frequency drives for motors and pumps
- Uninterruptable power supplies
- Programmable logic controllers
- Electronic point-of-sale systems
Specifications
The major technical specifications of the LM358DR operational amplifier are provided as following:
- Terminals: 8
- Package: 8-pin SOIC
- Input voltage range: 3V to 36V
- Typical supply current: 300uA
- Unity gain bandwidth: 1.2MHz
- Low input offset voltage: 3mV
- Differential input voltage: +32V
- Operating junction temperature: 150 degrees
- ESD rating: 2000V (HBM)
- CMMR: 96dB
Alternatives
LM358DRG3 , LM358DRE4, LM358DRG4;
How LM358DR work?
The LM358DR is a dual-package high-performance linear operational amplifier from Texas Instruments. This is an excellent general-purpose operational amplifier which is widely used in analog circuits. These amplifiers are used in a huge variety of applications. Common applications include control circuits, signal processing circuits, audio circuits, instrumentation circuits and A/D converter circuits. One of the prominent applications of these amplifiers is their use in audio and microphone based circuit. They are also used as amplifiers and pre-amplifiers in audio applications.
Following is an application circuit in which LM358DR is used as an audio pre-amplifier.
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