H11AV1,A H11AV2,A 4 20 I I F = 0 B = 8 µA 18 (mA) f = 1 MHz 7 µA 16 3 6 µA 14 5 µA 12 OR CURRENT C ANCE (pF) LED 2 4 µA 10 C C CB CE ACIT 8 3 µA COLLECT C 6 EB 1 2 µA C, CAP 4 TYPICAL , 2 C 1 µA I 0 0 2 4 6 8 10 12 14 16 18 20 0.5 0.1 0.2 0.5 1 2 5 10 20 50 VCE, COLLECTOR–EMITTER VOLTAGE (VOLTS) V, VOLTAGE (VOLTS) Figure 9. DC Current Gain (Detector Only)Figure 10. Capacitances versus VoltageTEST CIRCUITWAVEFORMS INPUT PULSE VCC = 10 V IC RL = 100 Ω 10% INPUT OUTPUT PULSE OUTPUT 90% t t r f INPUT CURRENT ADJUSTED TO ACHIEVE I t C = 2 mA. on toff Figure 11. Switching Time Test Circuit and Waveforms