Datasheet for the AD9271, an octal LNA/VGA/AAF/ADC and crosspoint switch designed for low cost, low power, and small size applications.
The AD9271 is an integrated circuit featuring eight channels of low noise amplifier (LNA), variable gain amplifier (VGA), antialiasing filter (AAF), and analog-to-digital converter (ADC). It is designed for low cost, low power, small size, and ease of use, specifically targeting applications such as medical imaging/ultrasound and automotive radar. The device includes an integrated crosspoint switch to support continuous wave (CW) Doppler operation.
| Input-referred noise (LNA) | 1.1 nV/√Hz @ 5 MHz typical |
|---|---|
| LNA Gain | 14 dB/15.6 dB/18 dB |
| ADC Resolution | 12 bits |
| ADC Sampling Rate | 10 MSPS to 50 MSPS |
| Signal-to-Noise Ratio (SNR) | 70 dB |
| Supply Voltage | Single 1.8 V supply |
| Package | 100-lead TQFP |
| Operating Temperature | -40°C to +85°C |
The device is designed for medical imaging/ultrasound and automotive radar applications.
Yes, it includes a crosspoint switch to support continuous wave (CW) Doppler.
The VGA gain range is from −6 dB to +24 dB.