SPT9689

SPT9689 DUAL ULTRAFAST VOLTAGE COMPARATOR TECHNICAL DATA FEBRUARY 20, 2001 FEATURES 650 ps propagation delay 100 ps propagation delay variation 70 dB CMRR Low feedthrough and crosstalk Differential latch control ECL compatible APPLICATIONS Automated test equipment High-speed instrumentation Window comparators High-speed timing Line receivers High-speed triggers Threshold detection Peak detection GENERAL DESCRIPTION The SPT9689 is a Subnanosecond monolithic dual comparator. The propagation delay variation is less than 100 ps from 5 to 50 mV input overdrive voltage. The input slew rate is 10 V/ns. The device utilizes a high precision differential input stage with a common-mode range of –2.5 V to +4.0 V. ECL-compatible complementary digital outputs are capable of driving 50 Ω terminated transmission lines and providing 30 mA output drive. The SPT9689 is pin compatible with the SPT9687. It is available in 20-lead PLCC and 20-contact LCC packages over the industrial temperature range. The SPT9689 is also available in die form. BLOCK DIAGRAM INVERTING INPUT LATCH ENABLE NONINVERTING INPUT – A + LATCH ENABLE Q OUTPUT Q OUTPUT VEE VCC GNDB GNDA Q OUTPUT Q OUTPUT LATCH ENABLE B – + LATCH ENABLE NONINVERTING INPUT INVERTING INPUT ABSOLUTE MAXIMUM RATINGS (Beyond which damage may occur)1 25 °C Supply Voltages Positive Supply Voltage (VCC to GND) .... –0.5 to +6.0 V Negative Supply Voltage (VEE to GND) .. –6.0 to +0.5 V Ground Voltage Differe...