OPA2365-Q1: OPA2365-Q1

Siddharth Sangam

Intellectual 640 points

Part Number: OPA2365-Q1

Hi,

I need to know about OPA2365-Q1 if used in unity gain or voltage follower configuration.

I am not driving the capacitive load.

I am interfacing OPA2365-Q1 with window comparator circuit.

Whether there need to be any change in below design please suggest.

As i am stuck due to below information

over 5 years ago

0 Hasan Babiker31 over 5 years ago

TI__Genius 15555 points

Hey Siddharth,

Which design are you referring to. In terms of figure 24, Resistor Rs is used to help stabilize the device when driving a capacitive load. You can use TINA to simulate if the device will function as expected. I've attached the reference design schematic below.

sboc134a.tsc

Best,

Hasan Babiker

0 kai klaas69 over 5 years ago

Guru 140200 points

Hi Siddarth,

when there's no capacitive load, then there's no need for an isolation resistor either.

Can you show a schematic of your planned circuit?

Kai

0 Hasan Babiker31 over 5 years ago in reply to kai klaas69

TI__Genius 15555 points

Hello Siddharth,

Any updates? Has your question been answered?

Best,
Hasan Babiker

0 Hasan Babiker31 over 5 years ago in reply to Hasan Babiker31

TI__Genius 15555 points

Hello Siddharth,

Since we have not heard back from you, we are gonna assume this thread is "resolved." Feel free to post a reply if you need further assistance.

Best,
Hasan Babiker

0 Siddharth Sangam over 5 years ago in reply to Hasan Babiker31

Intellectual 640 points

Please provide the inputs on this circuit configuration.

Its confidential.Please Do not share the circuit globally.

0 Paul Grohe over 5 years ago in reply to Siddharth Sangam

TI__Mastermind 49896 points

Hello Siddharth.

What comparator are you using? If it is not a Rail to Rail input device, then you may be violating the upper input range.

You do not need further "capacitive isolation", the 4.7k resistors are acting as the isolation resistors.

0 Hasan Babiker31 over 5 years ago in reply to Siddharth Sangam

TI__Genius 15555 points

Hello Siddharth,

This is a public forum that can be viewed by anyone. Please remove any confidential information you do not wish to share and you can email me at h-babiker@ti.com.

Best,

Hasan Babiker

0 Siddharth Sangam over 5 years ago in reply to Paul Grohe

Intellectual 640 points

Opamp and comparator both are of rail to rail input/Output.
Need to know will using this configuration the output will not get hampered??

0 kai klaas69 over 5 years ago in reply to Siddharth Sangam

Guru 140200 points

Hi Siddharth,

should work.

Kai

0 Siddharth Sangam over 5 years ago in reply to kai klaas69

Intellectual 640 points

Need to know what will be the impact on output.
Will there be any degradation of signal or phase shift etc.

0 kai klaas69 over 5 years ago in reply to Siddharth Sangam

Guru 140200 points

Hi Siddharth,

which output do you exactly mean?

Kai

0 Siddharth Sangam over 5 years ago in reply to kai klaas69

Intellectual 640 points

As a window comparator application.
I am providing analog input from 0V to 5V at opamp input and
Threshold at comparator are set as 4.34V and 0.66V with hysteresis.

Will this circuit will work fine as per requirement i.e. between 0.66V to 4.34V output will be high and beyond them output will be low.

Siddharth Sangam

0 kai klaas69 over 5 years ago in reply to Siddharth Sangam

Guru 140200 points

Hi Siddharth,

your circuit should work. Build it up and check it with the scope.

Kai

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OPA2365-Q1: OPA2365-Q1