AD9276 is an 8-channel LNA/VGA/AAF/12-bit ADC and CW I/Q demodulator
The AD9276 is an eight‑channel device that integrates a low‑noise preamplifier (LNA), variable gain amplifier (VGA), anti‑aliasing filter (AAF), 12‑bit ADC (10‑80 MSPS), and a CW I/Q demodulator with programmable phase rotation. It is offered in a 100‑lead, 16 mm × 16 mm TQFP package and is targeted at medical imaging, ultrasound, and automotive radar applications.
The datasheet provides complete electrical specifications, absolute maximum ratings, thermal impedance data, and recommended PCB layout and power‑supply guidelines. It also includes timing diagrams, pin descriptions, and an ordering guide for the part and evaluation boards.
| Number of channels | 8 |
|---|---|
| Input‑referred noise (LNA, 5 MHz, 21.3 dB gain) | 0.75 nV/√Hz typical |
| Maximum sample rate | 80 MSPS |
| Power consumption (TGC mode) | 195 mW per channel |
| Power consumption (CW Doppler mode) | 94 mW per channel |
| Operating temperature range | ‑40 °C to +85 °C |
| Supply voltages | AVDD1 = 1.8 V, AVDD2 = 3.0 V, DRVDD = 1.8 V |
| Package | 100‑lead TQFP, 16 mm × 16 mm |
The LNA input‑referred noise is typically 0.75 nV/√Hz at 5 MHz with a gain of 21.3 dB.
In CW Doppler mode the device uses about 94 mW per channel.
It operates from –40 °C to +85 °C.
The part requires AVDD1 = 1.8 V, AVDD2 = 3.0 V, and DRVDD = 1.8 V.