The ADL5380 is a broadband quadrature I-Q demodulator that covers an RF/IF input frequency range from 400 MHz to 6 GHz. It features high input IP3, high noise figure, high voltage conversion gain, high demodulation bandwidth and low power consumption.
The ADL5380 is a broadband quadrature I‑Q demodulator that operates from 400 MHz to 6 GHz. It provides a voltage conversion gain of about 7 dB, a demodulation bandwidth of roughly 390 MHz, and excellent amplitude and phase balance (≈0.07 dB and ≈0.2°). The device runs from a single 4.75 V‑5.25 V supply and can be configured via an external resistor on the ADJ pin to trade current for linearity.
The datasheet includes detailed specifications, absolute maximum ratings, pin descriptions, typical performance curves, and evaluation‑board layout guidelines. It also provides ordering information for the 24‑lead exposed‑paddle LFCSP package and various evaluation board options for low‑, mid‑, and high‑band operation.
| Operating frequency range | 400 MHz to 6 GHz |
|---|---|
| Voltage conversion gain | ~7 dB |
| Demodulation bandwidth | ~390 MHz |
| Phase accuracy | ~0.2° |
| Amplitude balance | ~0.07 dB |
| Input third‑order intercept (IIP3) at 900 MHz | 30 dBm |
| Supply voltage | 4.75 V to 5.25 V |
The ADL5380 operates from 400 MHz up to 6 GHz.
It requires a single supply between 4.75 V and 5.25 V.
The part is offered in a 24‑lead exposed‑paddle LFCSP package.