Logarithmic converter for fiber optic power monitoring
It accepts a wide dynamic range input current and produces a voltage output proportional to the logarithm of the input, making it suitable for optical power monitoring, receiver signal-strength indication (RSSI), and other fiber-optic link measurements.
Package and thermal considerations for layout
The exposed paddle is the primary thermal path; without adequate via stitching, junction temperature rises quickly under continuous high input current. The pad is electrically connected to ground, so the PCB footprint should mirror the datasheet recommended land pattern.