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testing sfdr snr etc of a flash adc, also bit error rate

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niket_jmd

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hi ,

i have implemented an flash adc in .35u process.......i want to check its dynamic specification..........please tell me in detail how to perform the test........(snr,sfdr)

i have designed a new rom and want to cehck the error rate..........plzsz help me out in this
 

niket_jmd

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that i know..............but exactly how??

and bit error rate???
 

mitrobge

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Apply a sine wave input for many periods and perform an fft analysis of the output stream. The SFDR is the difference between the signal level and the highest harmonic you see in your waveform. The more periods you simulate the more accurate results you can have.

dm
 

    niket_jmd

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niket_jmd

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and wat abt error rate...............and perfroming fft analysis on output stream means............as output is a digital data........6-bit??
 

Alex_IC

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You should place an ideal DAC after ADC (DUT) to get the analog output and simulate what you need :)
 

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