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Comparator with high frequency input

venkat chinthapalli
Prodigy 20 points
Other Parts Discussed in Thread: TLV7031, TLV3691, TLV7041

Hi,

I am trying to find one comparator which can trigger at input signal with maximum frequency of 1KHZ with battery powered.

My power requirement should be in nSec-uSec only.

I have a signal input  going low for only 2-3mSec and comparator has to detect that low going pulse and trigger output.

Please let me know any of your comparators support fr this.

Regards

venkat  

  • 0
    TI__Mastermind 24260 points
    The best options are the TLV7031 (push-pull output stage) or TLV7041 (open-drain output stage). These comparators consume 335nA with 3us of propagation delay. They should be plenty fast enough for your application and are pretty low power. The lowest power comparator we have is the TLV3691 with quiescent current of 75nA with 10x longer propagation delay. Depending on your power requirements, the TLV70x1 family may still be your best option.
    Chuck