POWER CONSUMPTION

MisterBill2

Joined Jan 23, 2018
27,508
Power consumption of an op-amp IC varies with type and performance rather than by power supply arrangement. So the answer indeed will be in the data sheet.
If you are unable to understand the data sheet then how will you be able to see if a specific type will satisfy the requirements of the application? The variety of Op-Amps is very broad and the range of performance is also very wide. Thus understanding the data sheet is very important.
 

crutschow

Joined Mar 14, 2008
38,503
Reading and understanding data sheets is a must, if you want to design electronics of any sort.

Below is a snip from the LTC1050 data sheet.
It should seem reasonably apparent that the power consumption is simply that current times the power supply voltage(s).

1592749593079.png
 

bertus

Joined Apr 5, 2008
22,922
Hello,

In addition to the 2.3 mA that @crutschow showed you, you must add the output current.
There is a short circuit current picture given in the datasheet:

LTC1050 output short current.png

Bertus
 

OBW0549

Joined Mar 2, 2015
3,566
Is power consumption of single supply opamp is diffrent from daul supply opamp?
No.

I can't under stand how from data sheet I will know, note that I use ltc1050
Then learn to read data sheets and understand the information in them, and learn what op amp characteristics are important for the circuits you're trying to design. You'll never get very far in electronics until you do that, and you'll be limited to copying circuits that other people have designed.

Here's a hint: look on page 3 of the LTC1050 data sheet. Down near the bottom you'll see a line labeled Supply Current:

LTC1050.png

That tells you how much current the LTC1050 will draw; 1 milliamp typical, 2.3 milliamps under worst-case conditions. Multiply that current by the voltage across the supply terminals (V+ and V-) to get the power consumption.
 

Thread Starter

MAINAHNOUD

Joined Jul 24, 2019
67
No.


Then learn to read data sheets and understand the information in them, and learn what op amp characteristics are important for the circuits you're trying to design. You'll never get very far in electronics until you do that, and you'll be limited to copying circuits that other people have designed.

Here's a hint: look on page 3 of the LTC1050 data sheet. Down near the bottom you'll see a line labeled Supply Current:

View attachment 210353

That tells you how much current the LTC1050 will draw; 1 milliamp typical, 2.3 milliamps under worst-case conditions. Multiply that current by the voltage across the supply terminals (V+ and V-) to get the power consumption.
I have +5v as V+ and -5v as V-
So, power = current *10v
Or, power = current *5v
 

OBW0549

Joined Mar 2, 2015
3,566
I have +5v as V+ and -5v as V-
So, power = current *10v
Or, power = current *5v
Read what I said: "Multiply that current by the voltage across the supply terminals (V+ and V-) to get the power consumption."

You have a total voltage of 10 volts across the supply terminals.

This stuff is not that difficult.
 
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