The ADL5306 is a low-cost logarithmic converter designed for fiber optic photodiode interfacing. It can measure current over 3 decades with 0.1 dB law conformance. The product can operate on a single or dual supply and has full log-ratio capabilities. It is temperature stable and the slope and intercept can be adjusted using external resistors. The product has a rapid response time, miniature chip scale package, and low power consumption.
The ADL5306 is a microminiature logarithmic converter optimized for fiber‑optic photodiode interfacing and a variety of current‑ratio measurements. It offers a 60 dB dynamic range, low quiescent current, and both single‑ and dual‑supply operation.
The document provides detailed specifications, pin descriptions, typical performance curves, theory of operation, and guidance on using the optional negative supply and evaluation board configurations.
| Supply Voltage (VP‑VN) Max | ≤ 11 V |
|---|---|
| Quiescent Current | ~5 mA |
| Operating Temperature Range | –40 °C to +85 °C |
| Maximum Output Voltage | 1.7 V |
Typical quiescent current is about 5 mA.
The device operates from –40 °C to +85 °C.