Alternate to LM358

[abuhafss]

Hi

I am looking for some alternate to LM358.
I want to use it as an integrator to generate a linear ramp 0-32V (actually 0-30V).
LM358's maximum supply voltage is 32V, and the output is 0-28V.
I need output up to 32V or at least 30V.

p.'s, The alternate part should not be expensive, please.

 

[Arouse1973]

You might have trouble finding a cheap one because of the common mode input range of most op amps being less than the supply voltage you need one that does include the supply. I'll have a look for you.
Adam

 

[Arouse1973]

You need to look for a true rail to rail op amp like the LT1490A but you may have to look for a cheaper type. This allows input voltages that include the supply rails and has rail to rail output also.
Adam

Edit: Have a look at Microchip also. They tend to be cheaper than most
http://www.microchip.com/pagehandle.../linear/operational-amplifiers.html#Jump2Grid

 

[abuhafss]

Yes, LT1490A is quite expensive.
Microchip's maximum supply voltage is 16V (as per data shown on their website).

 

[Arouse1973]

Yes, LT1490A is quite expensive.
Microchip's maximum supply voltage is 16V (as per data shown on their website).

What for all devices?

 

[Arouse1973]

Unfortunately I think you are going to have to pay a bit more for the op-amp unless you can run the opamp from a slightly higher voltage and then you could go for a standard type. I have had a look quickly on the major players and they all seem to be between £1.50 and the £2.00 mark.

 

[abuhafss]

Unfortunately I think you are going to have to pay a bit more for the op-amp unless you can run the opamp from a slightly higher voltage and then you could go for a standard type. I have had a look quickly on the major players and they all seem to be between £1.50 and the £2.00 mark.

I found two other, MC1556 and MC1558.