The AD8335 is a low-noise, low-cost quad variable gain amplifier that can be used in medical imaging, sonar, and test and measurement applications. It features a low-noise preamplifier, differential output, and wideband gain control.
The AD8335 quad variable gain amplifier (VGA) combines a low‑noise preamplifier with selectable gain stages. Each channel provides a gain range of up to 48 dB, fully differential signal paths, and active input matching. The device operates from a single 5 V supply and is available in a 64‑lead lead‑frame chip‑scale package for industrial temperature ranges.
Typical applications include medical imaging (ultrasound, gamma cameras), sonar, and test‑and‑measurement systems. The datasheet details specifications, absolute maximum ratings, pin configurations, typical performance curves, and an ordering guide for the AD8335 and its evaluation board.
| Supply Voltage | 5 V |
|---|---|
| Quiescent Power per Channel (PrA and VGA enabled) | 95 mW |
| Package | 64‑lead LFCSP (9 mm × 9 mm) |
The AD8335 operates from a 5 V supply.
Each channel consumes 95 mW of quiescent power when the preamplifier and VGA are enabled.
The device is supplied in a 64‑lead lead‑frame chip‑scale package (LFCSP, CP‑64).