Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Difference between Differentiators and Comparators

Status
Not open for further replies.

sirkiosta

Newbie level 3
Joined
Jul 5, 2019
Messages
3
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
34
Please, I'm a bit confused about the concept of this two amplifiers. In what ways/why are Differentiators different from comparators?
 

differentiators produce the differentiation of input signal waveform.
(i.e. d/dt of input signal)

comparator compares the voltages between the NonInv and Inv i/ps of opamp and produce a polarised output based on their difference in magniudes.
 

Hi,

In addition to what srizbf said, a differentiator detects transitions of the input signal. It produces a spike at the output when the input transitions.

The comparator output switches from low to high as the input signal increases and equals the reference and from high to low as the input signal decreases and equals the reference. Usually, there is a hysteresis implemented around the reference voltage.
 

A differential detector is the input stage of a comparator.

A differentiator performs a calculus function, differentiation. Its the counterpart of integration.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top