Hi guys ..... zero experience here but learning, so based on the collective experience, are there modern, suitable replacement components for:
1. LM741p
2. NJM3404AL
3. CA3240EZ
... and a better question is how do you determine what are acceptible replacements? thanks
Suitable modern replacements: LM741P, NJM3404AL & CA3240EZ
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mictester
- Old Solderhand
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mich wrote:Hi guys ..... zero experience here but learning, so based on the collective experience, are there modern, suitable replacement components for:
1. LM741p
2. NJM3404AL
3. CA3240EZ
... and a better question is how do you determine what are acceptible replacements? thanks
1. The "P" version was just a plastic-cased, cheap, general purpose op-amp, with poor slew rate and bad noise. Almost anything modern and bipolar will do - the NE5534 is bipolar and low noise, with good output drive capability (drives diodes to ground really well).
2. The 3404 is a dual 741 (more or less). Use a 4558.
3. The 3240 is still current!
Last edited by mictester on 21 Oct 2010, 22:56, edited 1 time in total.
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DrNomis
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mich wrote:Hi guys ..... zero experience here but learning, so based on the collective experience, are there modern, suitable replacement components for:
1. LM741p
2. NJM3404AL
3. CA3240EZ
... and a better question is how do you determine what are acceptible replacements? thanks
Not sure about the other two,but,you could try using a TLO71 as a replacement for an LM741,it is basically an LM741 with JFets as the input transistors,but as long as the circuit doesn't use the null pins which are to trim out the voltage offset on the output.....
Sometimes,when you run an LM741 off a +V,0V,and -V power supply,the output of the op amp doesn't sit at 0V,so the offset terminals are to trim the output to 0V
I'll just have a quick look in my semiconductor data books....
Hmmmm...all my data books say is that the NJM3404AL is the same as an NJM3404AD,but it is in an 8-pin Single In Line package....
And the closest IC to the CA3240EZ that my data books have data on,is the CA3240(A)E,and CA3240(A)E1,and they are both equivalent to two CA3140(A)E in one package.....
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