AD605 is a dual-channel, low-noise, single-supply variable gain amplifier with a gain range of -14dB to +34dB and a bandwidth of 40MHz.
The AD605 from Analog Devices is a dual, low‑noise, single‑supply variable‑gain amplifier (VGA) offering two independent linear‑in‑dB channels. It operates from a single 5 V supply, provides differential inputs, and features programmable gain ranges from –14 dB to +34 dB (FBK shorted) or 0 dB to 48 dB (FBK open).
The device is available in 16‑lead PDIP and SOIC‑N packages, supports a supply voltage of 5.0‑5.5 V, and dissipates only 90 mW per channel. Detailed specifications, pin descriptions, typical performance curves, and an evaluation board section are included.
| Input Noise (max gain) | 1.8 nV/V·Hz |
|---|---|
| Bandwidth (‑3 dB) | 40 MHz |
The input noise at maximum gain is 1.8 nV/V·Hz.
The AD605 has a –3 dB bandwidth of 40 MHz.