AD9272:  Octal LNA/VGA/AAF/ADC and Crosspoint Switch

The AD9272 is designed for low cost, low power, small size, and ease of use. It contains eight channels of a low noise preamplifier (LNA) with a variable gain amplifier (VGA), an antialiasing filter ...More

AD9272:  Octal LNA/VGA/AAF/ADC and Crosspoint Switch

Product Description

The AD9272 is designed for low cost, low power, small size, and ease of use. It contains eight channels of a low noise preamplifier (LNA) with a variable gain amplifier (VGA), an antialiasing filter (AAF), and a 12-bit, 10 MSPS to 80 MSPS analog-to-digital converter (ADC).

Each channel features a variable gain range of 42 dB, a fully differential signal path, an active input preamplifier termination, a maximum gain of up to 52 dB, and an ADC with a conversion rate of up to 80 MSPS. The channel is optimized for dynamic performance and low power in applications where a small package size is critical.

The LNA has a single-ended-to-differential gain that is selectable through the SPI. The LNA input-referred noise voltage is typically 0.75 nV/√Hz at a gain of 21.3 dB, and the combined input-referred noise voltage of the entire channel is 0.85 nV/√Hz at maximum gain. Assuming a 15 MHz noise bandwidth (NBW) and a 21.3 dB LNA gain, the input SNR is about 92 dB. In CW Doppler mode, the LNA output drives a transconductance amp that is switched through an 8 × 8 differential crosspoint switch. The switch is programmable through the SPI.

Applications

  • Medical imaging/ultrasound
  • Automotive radar

Features

  • 8 channels of LNA, VGA, AAF, and ADC
  • Low noise preamplifier (LNA) - See data sheet for additional information
  • Variable gain amplifier (VGA) - See data sheet for additional information
  • Antialiasing filter (AAF) - See data sheet for additional information
  • Analog-to-digital converter (ADC) - See data sheet for additional information
  • Includes an 8 × 8 differential crosspoint switch to support continuous wave (CW) Doppler
  • Low power, 195 mW per channel at 12 bits/40 MSPS (TGC)
  • See data sheet for additional features

Diagrams

AD9272 Functional Block Diagram
AD9272 Functional Block Diagram

Video

Specifications

Resolution (Bits) 12bit
T-Put Rate 80MSPS
# Chan 8
Supply V Multi(+1.8An,+3An,+1.8D)
Pwr Diss 1.7W
Interface LVDS,Ser
Ain Range 367 mV p-p,550 mV p-p,733 mV p-p
SNR (dB) 65dB
Pkg Type QFP

Explore Other Products

AD7357 - Differential Input, Dual, Simultaneous Sampling, 4.25 MSPS, 14-Bit, SAR ADC

AD7780 - 24-Bit Pin-Programmable Low Power Σ−Δ ADC

AD7192 - 4.8 kHz Ultra-Low Noise 24-Bit Sigma-Delta ADC with PGA

AD7949 - 14-Bit, 8-Channel, 250 kSPS PulSAR® ADC

Subscribe to New Products Feed More
Part# Bits Throughput Rate # of Inputs Operating Pwr Diss
AD9239-250 12 250MSPS 4 1.634W
AD9239-170 12 170MSPS 4 1.634W
AD9627-150 12 150MSPS 2 890mW
AD9627-80 12 80MSPS 2 490mW
AD9433-105 12 105MSPS 1 1.425W
AD9433-125 12 125MSPS 1 1.5W
AD9233-125 12 125MSPS 1 425mW
AD9230-170 12 170MSPS 1 407mW
AD9230-250 12 250MSPS 1 463mW
AD9432-105 12 105MSPS 1 1.1W
AD9432-80 12 80MSPS 1 1W
Pricing, Packaging & Availability

Help

Model
The model number is a specific version of a generic that can be purchased or sampled.

Status
Status indicates the current lifecycle of the product. This can be one of 4 stages:
  • Pre-Release: The model has not been released to general production, but samples may be available.
  • Production: The model is currently being produced, and generally available for purchase and sampling.
  • Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
  • Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).
Package Description
The package for this IC (i.e. DIP, SOIC, BGA). An Evaluation Board is a board engineered to show the performance of the model, the part is included on the board.

For detailed drawings and chemical composition please consult our  Package Site

Pin Count
Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

Temperature Range
This is the acceptable operating range of the device. The various ranges specified are as follows:
  • Commercial: 0 to +70 degrees Celsius
  • Military : -55 to +125 degrees Celsius
  • Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
  • Automotive: -40 to +125 degrees Celsius
Price
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

Production Availability
This is the date Analog Devices, Inc. anticipates that the product will ship from the warehouse. Most orders ship within 48 hours of this date.Once an order has been placed, Analog Devices, Inc. will send an Order Acknowledgement email to confirm your delivery date. It is important to note the scheduled dock date on the order entry screen. We do take orders for items that are not in stock, so delivery may be scheduled at a future date. Also, please note the warehouse location for the product ordered. We have warehouses in the United States, Europe and Southeast Asia. Transit times from these sites may vary.
Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.

RoHS Compliant
Due to environmental concerns, ADI offers many of our products in lead-free versions. For more information about lead-free parts, please consult our Pb (Lead) free information page.

*The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
**Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.

View Sales and Distribution Offices