AD8304 is a monolithic logarithmic detector optimized for the measurement of eight full decades of input signals from 100 pA to 10 mA with 0.1 dB conformance
The AD8304 is a monolithic logarithmic detector optimized for low‑frequency signal power measurement in fiber‑optic systems. It offers a 160 dB dynamic range (100 pA – 10 mA) with single‑supply operation (3.0 V – 5.5 V) and optional negative supply for ground‑referenced operation.
The datasheet provides full electrical specifications, pin descriptions, typical performance curves, and ordering information. Key parameters include a 10 mV/dB logarithmic slope, 2 V reference output, and up to 10 MHz output bandwidth. The device is supplied in a 14‑lead TSSOP package and is rated for –40 °C to +85 °C operation.
| Positive Supply Voltage | 3.0 V – 5.5 V |
|---|---|
| Quiescent Current (enabled) | ~4.5 mA |
It operates from a single positive supply of 3.0 V to 5.5 V, with an optional negative supply for ground‑referenced operation.
When enabled, the device draws about 4.5 mA of quiescent current.