ADCMP551 Datasheet | Analog Devices

FEATURES Single Supply High Speed PECL parators ADCMP551/ADCMP552/ADCMP553 FUNCTIONAL BLOCK DIAGRAM NONINVERTING INPUT Q OUTPUT Single power supply 750 ps propagation delay input to output 100 ps propagation delay dispersion Differential PECL patible outputs Differential latch control Internal latch pull-up resistors Power supply rejection greater than 70 d B 750 ps minimum pulse width Equivalent input rise time bandwidth > 750 MHz Typical output rise/fall of 500 ps Programmable Hysteresis INVERTING INPUT ADCMP551/ ADCMP552/ ADCMP553 Q OUTPUT 04722-0-001 LATCH ENABLE INPUT LATCH ENABLE INPUT Figure 1. GENERAL DESCRIPTION The ADCMP551/ADCMP552/ADCMP553 are single supply, high speed parators fabricated on Analog Devices’ proprietary XFCB process. The devices feature a 750 ps propagation delay with less than 150 ps overdrive dispersion. Dispersion, a measure of the difference in propagation delay under differing overdrive conditions, is a particularly important characteristic of high speed parators. A separate programmable hysteresis pin is available on the ADCMP552. A differential input stage permits consistent propagation delay with a mon-mode range from - 0.2 V to VCCI - 2.0 V. Outputs are plementary digital signals are fully patible with PECL 10 K and 10 KH logic families. The outputs provide sufficient drive current to directly drive transmission lines terminated in 50 Ω to VCCO - 2 V. A latch input is included and permits tracking, track-and-hold, or sample-and-hold modes of operation. The latch input pins contain internal pullups that set the latch in tracking mode when left open. The ADCMP551/ADCMP552/ADCMP553 are specified over the - 40°C to +85°C industrial temperature range. The ADCMP551 is available in a 16-lead QSOP package; the ADCMP552 is available in a 20-lead QSOP package; and the ADCMP553 is available in an 8-lead MSOP package. APPLICATIONS Automatic test equipment High speed instrumentation Scope and logic analyzer front ends Window parators...