Linear Technology LTC6752 comparators

The LTC6752 is a family of high-speed comparators capable of supporting toggle rates up to 280 MHz. The comparators exhibit low propagation delays of 2.9 ns and fast rise/fall times of 1.2 ns. The range comprises five different products, with different options for separate input and output supplies, shutdown, output latch, adjustable hysteresis, complementary outputs and package.

The comparators have rail-to-rail inputs that operate from 2.45 up to 3.5 or 5.25 V, depending on the option. The outputs are CMOS and the separate supply options can operate down to 1.71 V, allowing for directly interfacing to 1.8 V logic devices.

The low propagation delay of 2.9 ns, combined with low dispersion of 1.8 ns (10 to 125 mV overdrive variation), makes the comparators suitable for critical timing applications. Similarly, the fast toggle rate and the low jitter of 4.5 ps RMS (100 mVP-P, 100 MHz input) make them suitable for high-frequency line driver and clock recovery circuits.