Analog-to-Digital Converter Targets Wireless Applications

This from the press release for the AD9467, an analog-to-digital converter, capable of 16-bit conversions at data rates up to 250 MHz:

Norwood, MA (09/27/2010) – The industry’s fastest 16-bit ADC (analog-to-digital converter)–at 250 MSPS (mega samples per second)–was unveiled today by data converter market share leader* Analog Devices, Inc. (ADI). The AD9467 16-bit, 250 MSPS ADC operates on 35% less power at 25% higher sampling rate than any other 16-bit data converter, providing a new level of signal processing performance for test and measurement instrumentation, defense electronics, and communications applications where high resolution over a wide bandwidth is needed.

The AD9467 delivers resolution and a fast sample rate while simultaneously achieving a high SFDR (spurious-free dynamic range) of up to 100 dBFs and SNR (signal-to-noise ratio) performance of 76.4 dBFS. The device’s SFDR of 90 dBFS up to 300 MHz analog input and 60-femtosecond rms (root mean square) jitter helps lower the signal chain bill of materials component count by allowing engineers to increase system performance at higher intermediate frequencies, thereby reducing the number of signal down-conversion stages. Download data sheet or order samples and evaluation boards.

The AD9467 can be used with ADI’s AD9523/24 low-jitter clock generators and ADL5562 3.3 GHz ultra-low distortion RF/IF differential amplifier to provide a data conversion signal chain solution.

AD9467 16-bit, 250 MSPS ADC Key Features and Benefits:

  • 16-bit resolution with high signal bandwidths up to 300 MHz enables advanced signal acquisition subsystems in common radio platforms, radar systems, and spectrum analysis.
  • On-chip IF (intermediate frequency) sampling circuit and buffered analog inputs optimize the AD9467 for the highest ENOB and ease of use.
  • High dynamic range over broad signal bandwidth enables software-defined radios for use with multiple standards, such as LTE/W-CDMA, MC-GSM (class 1) and CDMA.
  • Programmable full-scale input range allows trade-off between SNR and SFDR enabling the design of more sensitive radar systems with the ability to acquire and track smaller targets with better accuracy.

The 200MHz part will cost $100 in quantity, while the 250 MHz part will cost $120.

Can anyone say “software-defined radio”??

Comments

  1. I am interested in the device you wrote about in todays infoblog. I have a pc based oscilloscope that I baught hoping to use it as a modulation monitor. It poops out @ 200kc analogue and 8Mhz didgtal. I know nothing about scopes and contacted the manufacturers rep and the answer was “Sorry Charely” about my intended usage. Im hoping that the device you wrote of would do the trick for me. Please let me know if it would work.

    Brian Lenten KB7RNG
    Thanks

    • Dan KB6NU says:

      Well, the answer is yes and no. You could use this part for the application you describe, but you would also need to build the rest of the circuit. This is only a component and not an entire instrument.

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