2-, 3- & 4-CHANNEL HIGH SPEED DRIVERS DDF2311 DDF3311 DDF4311 M ultiple independent high-speed drivers with 300 mA peak current spikes. 4. M ode control and input pins are interchangeable within any one channel. 1. Inputs are non-inverting when M ode control has a logic high input. 5. W hen driving anode-grounded diodes, excessive power dissipation must be avoided. V ee should be limited to -8V with -5V recommended. 2. Inputs are inverting when M ode control has a logic low input. 3. To increase switching spike currents, add a capacitor of up to 560 pF between the output and TP pins. 6. The DDF2311/3311/4311 do not have a true current source output. Instead the output is connected to a 380-ohm resistor in parallel with a 560 pF capacitor and the driven end of this RC combination is switched between +4V and V ee so that the negative output current varies directly with V ee. METAL WELDED PACKAGE 22 TOP V IEW Pkg Bottom 0.050 645 M A X DDF2311 XXXX 11 (– 5V to – 15V ) N/C 12 N/C +5V 500 M IN TY P 1 Ground Input #1 M ode Control #1 Input #2 M ode Control #2 Input #3 M ode Control #3 Input #4 M ode Control #4 +5V Ground 0.038 11 Tel: 508-485-6350 Fax: 508-485-5168 165 Cedar Hill Street, Marlborough, Ma 01752 www.SpectrumMicrowave.com 015 22 TP1 Output TP2 Output N/C TP3 Output TP4 Output N/C +12V DDF3311/4311 XXXX 125 MAX Spectrum Microwave 500 M IN TY P TOP V IEW #1 #2 0.050 1 TP Output NC Non-Inverting Input Ground M ode #1 M ode #2 Input #2 NC Output #2 TP 010 ± 002 645 SQ MAX #3 #4 067 395 MAX 12 150 MAX