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ADI comparator has 300ps propagation delay

Posted: 02 Sep 2002 ?? ?Print Version ?Bookmark and Share

Keywords:analog devices? ad53519? dual voltage comparator? voltage comparator ic?

The AD53519 dual voltage comparator from Analog Devices Inc. features a propagation delay of 300ps and >75ps overdrive dispersion that provides for minimal timing variation across the full input amplitude range.

The 20-lead PLCC provides an ECL logic output indicating the relative potentials on its two inputs for use in clock recovery, clock distribution, and to adjust timing in high speed systems such as telecommunications and military communications equipment, ATE, instrumentation, process control, medical equipment, environmental controls, and servers and memory banks.

It also incorporates a latch function that captures and stores events, allowing slower speed logic to respond at a later time.

The AD53519 has a true differential input - as opposed to one high-speed input plus a reference input - allowing it to be used as a line receiver. Additional features include a 5Gbps toggle rate for high-speed data conditioning, a 200ps minimum pulse width (2.5GHz equivalent bandwidth) for reshaping single event waveforms, and a wide input differential voltage range (-2V to 3V), which offers increased input protection.

The AD53519 is priced at $4.50 per unit in 1,000 piece quantities.

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