The AD9272 is an Octal LNA/VGA/AAF/ADC and Crosspoint Switch with input bandwidth greater than 100 MHz.
The AD9272 is an octal analog front‑end that integrates low‑noise preamplifiers, variable‑gain amplifiers, antialiasing filters and a 12‑bit ADC in a 100‑lead TQFP. Each channel provides up to 42 dB of programmable gain, a full‑scale differential output of 4.4 V p‑p, and supports sampling rates from 10 MSPS to 80 MSPS.
Typical applications include medical imaging/ultrasound and automotive radar, where low power (195 mW per channel at 12‑bit/40 MSPS) and high bandwidth (>100 MHz) are critical. The device also features an 8 × 8 differential crosspoint switch programmable via SPI for continuous‑wave Doppler operation.
| Number of channels | 8 |
|---|---|
| Input‑referred noise voltage | 0.75 nV/VHz |
| Bandwidth | > 100 MHz |
| Full‑scale output | 4.4 V p‑p differential |
| ADC resolution | 12 bits |
| Maximum sampling rate | 80 MSPS |
| Power consumption per channel | 195 mW (12‑bit/40 MSPS) |
The AD9272 has an input‑referred noise voltage of 0.75 nV/VHz at a gain of 21.3 dB.
It is intended for medical imaging/ultrasound and automotive radar applications.
Each channel consumes about 195 mW at 12‑bit resolution and 40 MSPS, and 120 mW in CW Doppler mode.