signal generators purpose

[insomnia]

hi hero just wondering will a op amp,s like this do what im looking for cause i have some here if they will do

 

[Hero999]

I found an op-amp which will be good up to 100kHz with a +/-15V supply and has a high output current of 80mA which is good TLE2144.
https://www.electro-tech-online.com/custompdfs/2010/04/0900766b80c82844.pdf

RS sell it and it's not that expensive considering it's quite a high performance op-amp.
Texas Instruments | Semiconductors | Amplifiers | Operational Amplifiers | Quad Operational Amplifiers, Texas Instruments, 5.0 to 99MHz |TLE2144CN

 

[insomnia]

thanks once agian hero

 

[Hero999]

I know this is a bit of an old thread but I just realised something which will help, if you do return.

If the fist op-amp (the one on the left with the output connected to the square wave output) is replaced with a comparator (LM311 or LM293) the maximum output frequency can easily be increases without using a state of the art op-amp. One of the reasons for using a good op-amp was to ensure a fast rise and fall time. A comparator would solve this problem, but it means using an extra IC, although it should be cheaper than a top of the range op-amp. Note that the output for the comparator will need a pull-up resistor: 1k should do.