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gainclone chips in Parallel
gainclone chips in Parallel
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Old 21st November 2005, 02:47 AM   #1
steven344 is offline steven344  United States
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Default gainclone chips in Parallel

Interesting way TI runs opa chips,wonder if this can be done with lm3875,lm3886,lower parts count,dont have to match gain of each chip with precision resistors,second chip runs at unity gain,any thoughts on this?

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Old 21st November 2005, 06:27 AM   #2
jcx is offline jcx  United States
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few power chip amps are unity gain stable, nor does the input common mode voltage range extend to the rails
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Old 21st November 2005, 05:52 PM   #3
youyoung21147 is offline youyoung21147  France
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Nice ! It looks a bit like the TDA7293 parallel mode in the datasheet if I remember.

But LM chips are not stable at unity gain according to the datasheet
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