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How does LM358DR work?

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Kynix

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All operational amplifiers have two power pins, which are generally in the data, and their identities are visual c + and Visual C - but some of the times they are identified as visual c + and GND. This is because some data manuals attempt to distinguish the difference between the single power supply and the dual power amplifier. But this does not mean that they must use that way - they may be able to work at other voltages. When the operational amplifier is not supplied by default voltage, it is necessary to refer to the operational data manual, especially the absolute maximum supply voltage and voltage swing instructions.
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Most analog circuit designers know how to use an operational amplifier under the condition of a dual power supply, such as the circuit on the left of the figure, and a dual power is made up of a positive power and an equal voltage negative power. Generally, positive and negative 15V, plus minus 12V and plus minus 5V are also frequently used. The input voltage and the output voltage are given in the reference area, and the swing amplitude limit Vom of the positive and negative voltage as well as the maximum output swing are also included.
Here I would like to ask that something about LM358DR, like the **broken link removed** data shows:
The Universal Standard family LM358 / 324, LM2904 / 2902 monolithic ICs integrate two independent op-amps and phase compensation capacitors on a single chip and feature high-gain, low power consumption, and an operating voltage range of 3[V] to 32[V] (single power supply.)

● Features
1) Operating temperature range
Commercial Grade LM358/324 family : 0[℃ ] to + 70[℃ ]
Extended Industrial Grade LM2904/2902 family : -40[℃ ] to +125[℃ ]
2) Wide operating supply voltage
+3[V] to +32[V] (single supply)
± 1.5[V] to ± 16[V] (dual supply)
3) Low supply current
4) Common-mode input voltage range including ground
5) Differential input voltage range equal to maximum rated supply voltage
6) High large signal voltage gain
7) Wide output voltage range

But how does it work on the circuit?
 

Hi,

But how does it work on the circuit?
Not clear what you mean.
Please ask a more detailed question and/or give example (circuit).

****
Generally:
An OPAMP doesn´t necessarily need a GND connection.
But there are standard OPAMP circuits that use GND.

Every usual OPAMP can be driven on single supply, symmetric spilt supply or unsymmetric split supply. Even didicated "single supply OPAMPs"
Let´s use neutral terminology for the supply pins: V+ and V-. You may connect V+ or V- or none to GND.
The input voltage specification is referenced to V+ and/or V- (but datasheets may use different names)
The output voltage specification is referenced to V+ and/or V- (but datasheets may use different names)

To make it more visible:
A usual OPAMP has just 5 connections. And it can only "see" the voltages between those 5 points.
Use a simulation tool. And measure the voltages of an OPAMP only at the 5 connections with respect to one of these 5 connections.
(The OPAMP doesn´t know about ony other voltage potential outside it´s package)

Klaus
 

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