LTC6400-8 TYPICAL PERFORMANCE CHARACTERISTICSTurn-On TimeTurn-Off Time 3.5 3.5 RL = 87.5Ω PER OUTPUT 3.0 3.0 2.5 2.5 2.0 +OUT 2.0 1.5 1.5 +OUT TAGE (V) TAGE (V) VOL –OUT 1.0 VOL 1.0 –OUT 0.5 0.5 0 0 ENABLE ENABLE RL = 87.5Ω PER OUTPUT –0.5 –0.5 –20 0 20 40 60 80 –20 0 20 40 60 80 TIME (ns) TIME (ns) 64008 G19 64008 G20 PIN FUNCTIONS V+ (Pins 1, 3, 10): Positive Power Supply (Normally tied –OUTF, +OUTF (Pins 6, 7): Filtered Outputs. These pins to 3V or 3.3V). All three pins must be tied to the same have 50Ω series resistors and a 2.7pF shunt capacitor. voltage. Bypass each pin with 1000pF and 0.1μF capacitors ENABLE (Pin 11): This pin is a logic input referenced to as close to the pins as possible. VEE. If low, the part is enabled. If high, the part is disabled VOCM (Pin 2): This pin sets the output common mode and draws very low standby current while the internal op voltage. A 0.1μF external bypass capacitor is recom- amp has high output impedance. mended. +IN (Pins 13, 14): Positive Input. Pins 13 and 14 are V– (Pins 4, 9, 12, 17): Negative Power Supply. All four internally shorted together. pins must be connected to same voltage/ground. –IN (Pins 15, 16): Negative Input. Pins 15 and 16 are –OUT, +OUT (Pins 5, 8): Unfi ltered Outputs. These pins internally shorted together. have series resistors, ROUT 12.5Ω. Exposed Pad (Pin 17): V–. The Exposed Pad must be connected to same voltage/ground as pins 4, 9, 12. 64008f 8