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quad up amp ??

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MikeMl

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Don't understand your question. Yes, there are quad opamps.
 

MikeMl

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I dont think a quad opamp with a tri-state enable for each amplifier exists. That would be four pins per opamp (+,-,out, En) plus Vds and Vss for a total of 16+2 pins = 18 pins. Maybe in Surface Mount. Check National.com or TI.com.
 

drno503

New Member
pin out

I dont think a quad opamp with a tri-state enable for each amplifier exists. That would be four pins per opamp (+,-,out, En) plus Vds and Vss for a total of 16+2 pins = 18 pins. Maybe in Surface Mount. Check National.com or TI.com.
pi out of 24 ok otherwise 2c 14 pin dips
thanks gerald
 

Hero999

Banned
Please use proper spelling, not txt speak.

The only solution is to could connect a quad op-amp to a CD4066, or similar, quad analogue switch.
 

gary350

Well-Known Member
LM358 and LM2904 - Low Power Dual Operational Amplifier use 2 of them.
 
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audioguru

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LM358 and LM2904 - Low Power Dual Operational Amplifier use 2 of them.
They are not tri-state. Two LM358 dual opamps are exactly the same as one LM324 quad opamp. They are lousy opamps.
 
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