Teledyne e2v Introduces 12-bit ADC that Can Directly Sample 26 GHz Signals

Teledyne e2v has successfully demonstrated next-generation data converter technology that its engineering team is currently in the process of testing. Representing a new milestone in the progression of analog-to-digital converters (ADCs), the 12-bit EV12PS640 complements Teledyne e2v’s recently announced microwave digital-to-analog converter (DAC) devices, the EV12DD700. This pioneering ADC proof of concept can deliver performance parameters that are beyond the scope of anything currently on the market. Supporting 11 GSamples/s operation, it can achieve super-high frequency (SHF) direct sampling – reaching into the Ka frequency band (26 GHz and above).

Direct microwave sampling has numerous benefits. Firstly, it eliminates the need for frequency translation, which means that the risk of signal distortion occurring is reduced considerably. Next, it offers software-defined versatility across multiple frequency bands up to Ka. This means that systems are much easier to optimize for different application scenarios, as well as providing a platform for them to be reconfigured on the fly. Through a direct microwave sampling approach, it is possible to streamline data conversion hardware significantly. Teledyne e2v is introducing, for the first time, 50 Ohm single-ended inputs (for both clock and analog inputs). This thereby suppresses the need for a balun, resulting in a lower bill-of-materials and associated real estate savings. It is thus easier to interface with the RF system (which is classically working under 50 Ohms characteristic impedance).

As a result of all this, direct microwave sampling is starting to prove itself to be highly advantageous in systems where there are power budget or space limitations that need to be respected. Now, by taking direct sampling into Ka-band frequencies, Teledyne e2v is set to enable a broad range of high-end RF applications to be addressed. The EV12PS640 will therefore be of particular relevance to the future architecture of avionics, military, space, as well as the test and measurement sectors.

Click here to learn more about the EV12DD700.