OPA699: Multiple Output Comparators

Shyam Daram

Expert 1185 points

Part Number: OPA699

I am using OPA699 as limiting amplifier after a TIA stage

I wish to use mutiple comparators , arround 6 Nos each with different voltage references

what are the parameters to be considered while interfacing multiple comparators to OPA699

Kindly warn me if any such are there to be considered.

over 1 year ago

0 Sima Jalaleddine over 1 year ago

TI__Mastermind 25335 points

Hello Shyam,

We apologize for the slight delay. Today is a holiday in the US. We will send over a response to you by tomorrow.

Thank you,

Sima

+1 Clemens Ladisch over 1 year ago

Guru 280090 points

You have to check that the comparator inputs do not load the output too much.

Most CMOS comparators have high-impedance inputs, but some high-speed ones do not. The LTC6754 has input bias currents of < 5 µA, so it would be fine.

Because of the Thanksgiving holiday in the U.S., TI E2E™ design support forum responses may be delayed from November 25 through December 2. Thank you for your patience.

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OPA699: Multiple Output Comparators