66136 Revision - Mii OPTICAL SCHMITT TRIGGER WITH TTL BUFFER ALL DATA IS PRELIMINARY AND SUBJECT TO CHANGE WHEN DESIGN IS FINALIZED 5/29/01 Features: Applications: • • • • • • • Optical shmitt-trigger with TTL output High input sensitivity less than 2 uW Switching frequency to 1 Mhz Spectrally matched for LED’s in the 850 to 880 nm range OPTOELECTRONIC PRODUCTS DIVISION Optical sensors Optical data links Optical isolators DESCRIPTION The 66136 series optical detector contains an integrated optical schmitt-trigger IC with a TTL buffer. The detector has an 18 mil X 18 mil active area coupled to a trans-impedance amplifier which converts the light detected light to a voltage level. This voltage is compared to an internal threshold and switches when it is greater than the internal reference. The comparator has built in hysterisis to provide a clean “snap acting” output even for slowly changing light levels. An internal buffer stage provides “light operated” rise and fall times typically in the 6-10 ns range allowing easy logic interface. The receiver is designed to operate from a single 5 volt supply and is directly compatible with TTL logic. This receiver may be screened to MIL-PRF19500 requirements. ABSOLUTE MAXIMUM RATINGS 25°C FREE AIR TEMPERATURE UNLESS NOTED Storage Temperature............................................................................................................................................. -55°C to +150°C Operating Temperature ........................................................................................................................................... -40°C to +85°C Input Voltage .........................................................................................................................................................................5.5 Vdc Soldering Temperature (1/16 inch from case for 10 seconds).............................................................................................. 240°C Transmission Rate at 100mA IF ....................................................................................................................................... 10Mbits/s NOTES: Package Dimensions Schematic Diagram MICROPAC INDUSTRIES, INC. OPTOELECTRONIC PRODUCTS DIVISION • 725 E. Walnut St., Garland, TX 75040 • (972) 272-3571 • Fax (972) 487-6918 www.micropac.com E-MAIL: [email protected] 6 - 32 66136 Revision - OPTICAL SCHMITT TRIGGER WITH TTL OUTPUT 5/29/01 ELECTRICAL CHARACTERISTICS TA = 25°C unless otherwise specified. SYMBOL MIN TYP MAX UNITS Supply voltage PARAMETER Vcc 4.5 5 5.25 V Input current Iin 8 Receiver Sensitivity R 1.5 1 2 Ma. µW Vcc = 5 V 850 nm LED Propagation Delay Tpdl, Tphl 4 µs 850 nm LED Output Rise Time tr tf 8 15 10 ns ns C=15 pf 6 0,5 V Output Fall Time Voh Vol Output High Output Low 2.7 3.4 .35 TEST CONDITIONS NOTE C=15 pf Ioh = -.4 ma. Iol = 4 ma. Vcc = 5.25 V NOTES: RECOMMENDED OPERATING CONDITIONS: PARAMETER Supply Voltage SYMBOL MIN MAX UNITS Vcc 4.5 5.25 mA SELECTION GUIDE PART NUMBER TBD PART DESCRIPTION PO Range TBD MICROPAC INDUSTRIES, INC. OPTOELECTRONIC PRODUCTS DIVISION • 725 E. Walnut St., Garland, TX 75040 • (972) 272-3571 • Fax (972) 487-6918 www.micropac.com E-MAIL: [email protected] 6 - 33