Key facts
- Brand
- Analog Devices
- Model
- AD9271
- Category
- Other Electronics
- Industry
- Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2026-10-26
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AD9271 Rev. B Octal LNA/VGA/AAF/ADC and Crosspoint Switch Datasheet
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.
Read onlineAnalog Devices AD9271 specifications
| 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 |
Source: AD9271 Rev. B Octal LNA/VGA/AAF/ADC and Crosspoint Switch Datasheet
All Analog Devices AD9271 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What are the applications for the AD9271?
The device is designed for medical imaging/ultrasound and automotive radar applications.
From: AD9271 Rev. B Octal LNA/VGA/AAF/ADC and Crosspoint Switch Datasheet
Does the AD9271 support CW Doppler operation?
Yes, it includes a crosspoint switch to support continuous wave (CW) Doppler.
From: AD9271 Rev. B Octal LNA/VGA/AAF/ADC and Crosspoint Switch Datasheet
What is the input‑referred noise of the AD9271?
The input‑referred noise is typically 1.1 nV/VHz at 5 MHz.
What is the full‑scale output voltage swing?
The full‑scale output is 2 V peak‑to‑peak differential.