OP-AMP LM324

[Gunasekaran]

Dear Guys,

I have an Load cell amplifier & op-amp (LM 324) is used to amplify the signals received from load cell (mv). The problem with the basic LM324 op amp is it picks the RF frequency also & amplifies it. I expect a reply from IC experts- Substituing LM324 with same characteristics RF filter OP-AMP. Kindly mention  the op amp number .

Thanks in advance

[m venugopal]

you can replace LM324 with LM358. use LM358 with two feedback resistors, then you can get non-inverting output value. the load cell output voltage may be in 0.xxmV to few mV. so, when designing amplifier circuit select the input resistors carefully. 

but i suggest to use instrumentation amplifier, AD623 to get better result. 

Please post your circuit and specification of the load cell, then i can able to answer better. 

[Author]

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