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 complementar y digital outputs are capable of driving 50 Ω ter minated 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 for m. 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 Differential .................... –0.5 to +0.5 V Input Voltages Input Common Mode Voltage ................. –4.0 to +5.0 V Differential Input Voltage ........................ –3.0 to +3.0 V Input Voltage, Latch Controls .................... VEE to 0.5 V Output Output Current ................................................... 30 mA Temperature Operating Temperature, ambient ............ –40 to +85 °C junction ..................... +150 °C Lead Temperature, (soldering 60 seconds) ..... +300 °C Storage Temperature ............................ –65 to +150 °C Note: 1. Operation at any Absolute Maximum Rating is not implied. See Electrical Specifications for proper nominal applied conditions in typical applications. ELECTRICAL SPECIFICATIONS T A = +25 °C, VCC = +5.0 V, VEE =–5.20 V, RL = 50 Ohm to –2 V, unless otherwise specified. PARAMETERS DC CHARACTERISTICS Input Offset Voltage Input Offset Voltage Offset Voltage Tempco Input Bias Current Input Bias Current Input Offset Current Input Offset Current Positive Supply Current Negative Supply Current Positive Supply Voltage, VCC Negative Supply Voltage, VEE Input Common Mode Range Latch Enable Common Mode Range Open Loop Gain Differential Input Resistance Input Capacitance Power Supply Sensitivity Common Mode Rejection Ratio Power Dissipation Power Dissipation Output High Level Output Low Level AC CHARACTERISTICS Propagation Delay Latch Set-up Time Latch to Output Delay Latch Pulse Width Latch Hold Time Rise Time Fall Time Slew Rate Bandwidth 1RS = Source impedance TEST CONDITIONS VIN, CM=0, RS=0 Ohms1 VIN, CM=0, RS=0 Ohms1 TMIN