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Well, i think you should find a very cheep op-amp and cheak it datasheets then you will know it maximum freq, but you can try TL084 and download it datasheet for more info.
Try finding one that doesn't work over that range!
Very few op-amps have a lower frequency limit and 100KHz is still a relatively low frequency for an upper limit. Unless you have special needs, such as unusual supply voltage or load conditions you can use almost any device, I would suggest looking at the TL081 to TL084 as examples.
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