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Chip Amps Amplifiers based on integrated circuits

Lm1875, Single Or Dual Supply
Lm1875, Single Or Dual Supply
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Old 24th May 2006, 11:54 AM   #1
alcuemar is offline alcuemar  Spain
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Post Lm1875, Single Or Dual Supply

Dear Friends,

Another doubt,

What and Why is more recommended dual or single power supply for LM1875?

Thanks in advance!!

Alcuemar
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Old 24th May 2006, 11:57 AM   #2
richie00boy is offline richie00boy  United Kingdom
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Lm1875, Single Or Dual Supply
Do you mean single as in one for each channel, or single as in single rail and AC (capacitor) coupled input and output?
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Old 24th May 2006, 12:08 PM   #3
alcuemar is offline alcuemar  Spain
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I mean.

Single supply powering the LM1875 with V+ and GNd.

And Split supply or dual supply powering the LM1875 with V+, GND and V-.

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Old 24th May 2006, 01:50 PM   #4
richie00boy is offline richie00boy  United Kingdom
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Lm1875, Single Or Dual Supply
OK that's clear now.

I would use a split supply +ve gnd -ve as then you can use DC coupled output which gives better performance.
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Old 24th May 2006, 03:46 PM   #5
alcuemar is offline alcuemar  Spain
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Thanks richie,

So at the end It is better to use Split supply to have better performance, isn't it?
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Old 24th May 2006, 04:02 PM   #6
richie00boy is offline richie00boy  United Kingdom
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Lm1875, Single Or Dual Supply
If performance takes priority over cost and easy build then yes.
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