Answer / khurram_bhati01

OP-AMP IS BASICALLY AN IC, E.G 741 WHICH HAVE THE FOLLOWING
CHARACTERISTICS.
HIGH INPUT IMPEDENCE
LOW OUTPUT IMPEDANCE
HIGH GAIN

AN OP-AMP CAN BE USED AS AMPLIFIER AND AS A COMPARATOR.
THESE ARE ITS APPLICATION.

IN AMPLIFER MODE ITS JUST AMPLIFY THE INPUT SIGNAL.
IN COMPARATOR MODE IT IS USED TO SENCE THE TWO INPUT
VOLTAGE, ONE IS REFERANCE AND OTHER VARIES. COMPARATOR
CHANGES ITS OUTPUT STATE AS THE VARING VOLTAGE INCREADED OR
DECREASED FROM THE REFERANCE.

Answer / rupesh raj karn

OP AMP is just an IC741 found in market.
Comparator is an OP AMP used in open loop configuration.
Amplifier is OP AMP in closed loop configuration

what are the advantages and disadvantages of embedded compare to vlsi,dsp?

0 Answers  

---

hi i wnt to know the general hr questions aked in wipro with answers

0 Answers  

---

Why r-c filters are suitable only for light loads?

0 Answers  

---

Please somebody tell me the call flow for MO & MT call with diagram & complete explaination ?

0 Answers  

---

What's the difference between looping 0s and 1s in K map?

0 Answers   DRDO,

---

I gave interviews for infosys and accenture in my college after which my college said I was selected in infosys. After some days I got a mail from accenture that we have dispatched the offer letter to ur college. I talked to my training officer and he is not ready to give me my letter. So how do i contact them to get my letter online ?

0 Answers   Infosys,

---

What are the main classification of inverter?

0 Answers  

---

What is the difference in usage between TRIAC and SCR ..

2 Answers  

---

What is meant by load commutation?

0 Answers  

---

AC is normaly 230v 50Hzs why ?

6 Answers  

---

why dont call datareader is backward

0 Answers  

---

what is the difference b/w cascading bts's and making bts master and slave?

1 Answers   Vodafone,

---