TDC Is Compact And Precise

The AS6500 time-to-digital converter (TDC) from ams comes in a 6 mm x 6 mm package and measures time intervals as short as 5ns to a resolution of 10 ps. Providing CMOS inputs, the AS6500 is based on ams’ TDC-GPX2 and delivers a sampling rate up to 1.5 Msamples/s.

 

Like the TDC-GPX2, the AS6500 is an integrated four-channel converter IC offering single-measurement resolution of up to 20 psrms per channel in normal mode, and 20 ns pulse-to-pulse spacing. Operating in dual-channel high-resolution mode, it can achieve a maximum resolution of 10 psrms with 5-ns pulse-to-pulse spacing.

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The device is housed in a smaller 40-lead QFN package with a footprint 56% smaller than the TDC-GPX2. Operating from a 3.3V supply, the AS6500 typically consumes 60 mW in normal operation, and draws 60 µA in stand-by mode. It supports CMOS interfaces from a host system and provides its calibrated output as a digital signal over a standard serial peripheral interface (SPI).

 

The AS6500 is available now in production volume. Unit pricing is available on request from ams. For more technical information, get a look at the AS6500 datasheet.

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