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Old 4th October 2007, 07:16 PM   #1
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Question Dual Operational Amplifier Question?

I am with a problem in the ClassD repair.
This turned off the value of the component.
Is a Dual Operational Amplifier?
Package SOIC 8 Pin.
In component botton is values:
53288 and MALAY

Exist LT1220 DUAL in ONE?

Is Circuit....

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Old 5th October 2007, 10:52 PM   #2
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Hi, lindomar

The answer is probably no! You should find another replacement fast opamp for this. eg, TLC082, LT1362 etc..
Was your circuit working? I saw you are getting the FB after the filter. However IRAUDamps get this before the filter inductor for analog sigma delta modulation.

I do not have an idea about the 53288 &Malay
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Old 7th October 2007, 08:05 AM   #3
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Yes... the circuit works.
It is an identical copy of the original.

Thanks.
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Old 7th October 2007, 08:09 PM   #4
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Ok,
Try LT1362, it is a fast dual opamp that can be replacement of LT1220 for this purpose.

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