Teledyne e2v : fully space-qualified 4-channel ADC

Teledyne e2v’s EV12AQ600 has just been confirmed as the industry’s first 4-channel analog-to-digital converter (ADC) to be qualified for space deployment.

Subjected to comprehensive testing, the EV12AQ600 has shown that it can withstand a total ionizing dose (TID) of 150kRad. The TID and SEE results underline the suitability of this device for space applications like long-term missions or GEO satellites.

In addition, the ADC had to endure multi-axis mechanical shock and vibration tests, plus electro-static discharge (ESD), extreme temperature and thermal cycling test procedures. Having successfully passed all of the tests described, it now meets NASA and ESA requirements, complying with the stringent MIL-PRF-38535 (QML-Y) and ESCC 9000 standards.

Teledyne e2v’s EV12AQ600 series devices are already employed in numerous mission-critical military and avionics applications, and space qualification will open up many new opportunities for their usage.

These 12-bit ADCs support 1.6GSps data sampling rates on each of their channels, or 6.4GSps across a single channel when interleaved.

Thanks to the cross-point switch which is situated after the inputs, this device is much more versatile than other solutions. The ADC can easily be reconfigured remotely, once the hardware it has been incorporated into is in orbit. The number of channels, the bit rate and the dynamic range can all be altered via the accompanying FPGA – so that new functional requirements can be attended to.

This inherent flexibility also facilitates design re-use, with engineers able to follow a platform-based strategy where the original system can be subsequently adapted to suit different application criteria.

Consequently, development times can be accelerated significantly, with less engineering resources being required. A comprehensive collection of FPGA libraries are available to further assist with project development work, leveraging Teledyne e2v’s inclusion in the Xilinx ecosystem (XQRKU060) for space implementations.

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