The ADCMP572 and ADCMP573 are ultrafast comparators fabricated on Analog Devices’ proprietary XFCB3 Silicon Germanium (SiGe) bipolar process. The ADCMP572 features CML output drivers and latch inputs, and the ADCMP573 features reduced swing PECL (RSPECL) output drivers and latch inputs.
Both devices offer 150 ps propagation delay and 80 ps minimum pulse width for 10 Gbps operation with 200 fs rms random jitter (RJ). Overdrive and slew rate dispersion are typically less than 15 ps.
A flexible power supply scheme allows both devices to operate with a single 3.3 V positive supply and a ?0.2 V to +1.2 V input signal range or with split input/output supplies to support a wider ?0.2 V to +3.2 V input signal range and an independent range of output levels. 50 Ω on-chip termination resistors are