Product category:
Analogue and Mixed Signal ICs
News Release from: Maxim Integrated Products | Subject: MAX109
Edited by the Electronicstalk Editorial
Team on 19 July 2007
Super-fast ADC digitises RF signals
Top-performing silicon-germanium-based 8bit A/D convertor is optimised for capturing input frequencies in the second Nyquist zone.
Maxim Integrated Products describes the MAX109 as the industry's highest performance 8bit 2.2Gsample/s analogue-to-digital convertor (ADC) The new device offers excellent wideband dynamic performance that has been optimised for capturing input frequencies in the second Nyquist zone
This article was originally published on Electronicstalk on 27 Aug 2002 at 8.00am (UK)
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Fabricated using an advanced SiGe process, the MAX109 integrates a high-performance track/hold (T/H) amplifier, a quantiser, and a 1:4 demultiplexer on a single monolithic die.
At a sample rate of 2.2Gsps and an input frequency of 300MHz, the ADC achieves a spurious-free dynamic range (SFDR) of 62dBc and a signal-to-noise ratio (SNR) of 45dB.
The SNR remains flat (within 1.6dB) for input frequencies all the way up to 2GHz.
The MAX109 can also digitise/synthesise signals directly at RF, thus reducing or eliminating the need for RF downconvertors.
This excellent wideband dynamic performance and integrated functionality make the MAX109 ideal for applications such as broadband communication receivers, radar systems, and high-end instrumentation systems.
The ADC supports either differential or single-ended inputs with a +/-250mV voltage range.
The output data is in standard LVDS format and is demultiplexed internally by a 1:4 demultiplexer.
The LVDS outputs operate from a supply-voltage range of 3.0V to 3.6V, which enables compatibility with single 3V-reference systems.
Control inputs allow interleaving of additional MAX109 devices to increase the effective system-sampling rate.
The MAX109 is offered in a 256-pin SBGA package and is specified over the extended (-40 to +85C) temperature range.
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