Figure 7-7 through Figure 7-9 show the control signal input, LMH34400 output, and TLV3601 output, respectively, with a 10‑ns wide, 1‑ns edge rate input current pulse. The figures show the ability of the LMH34400 to convert a small 25‑µA input signal to a 1‑V output, and then use the TLV3601 to increase the edge rate and amplitude of the received pulse. Also, the shape of this output pulse stays approximately constant over a large range of optical input power levels. In this specific case, be aware that the output swing of the TLV3601 is limited because the TLV3601 is driving a matched 100‑Ω load to interface with the test equipment.

Figure 7-7 Equivalent Input Current Signal to LMH34400

Figure 7-9 TLV3601 Output Voltage Driving 100‑Ω Load

Figure 7-8 LMH34400 Output Voltage