Datasheet LTC2253, LTC2252 (Analog Devices) - 6

LTC2253/LTC2252
W U TYPICAL PERFOR A CE CHARACTERISTICS LTC2253: 8192 Point FFT, LTC2253: Typical INL, 2V Range, LTC2253: Typical DNL, 2V Range, fIN = 5MHz, –1dB, 2V Range, 125Msps 125Msps 125Msps
1.0 1.0 0 –10 0.8 0.8 –20 0.6 0.6 –30 0.4 0.4 –40 0.2 0.2 –50 0 0 –60 –0.2 –0.2 –70 INL ERROR (LSB) AMPLITUDE (dB) DNL ERROR (LSB) –80 –0.4 –0.4 –90 –0.6 –0.6 –100 –0.8 –0.8 –110 –1.0 –1.0 –120 0 1024 2048 3072 4096 0 1024 2048 3072 4096 0 10 20 30 40 50 60 CODE 22532 G01 CODE 22532 G02 FREQUENCY (MHz) 22532 G03
LTC2253: 8192 Point FFT, LTC2253: 8192 Point FFT, LTC2253: 8192 Point FFT, fIN = 30MHz, –1dB, 2V Range, fIN = 70MHz, –1dB, 2V Range, fIN = 140MHz, –1dB, 2V Range, 125Msps 125Msps 125Msps
0 0 0 –10 –10 –10 –20 –20 –20 –30 –30 –30 –40 –40 –40 –50 –50 –50 –60 –60 –60 –70 –70 –70 AMPLITUDE (dB) –80 AMPLITUDE (dB) –80 AMPLITUDE (dB) –80 –90 –90 –90 –100 –100 –100 –110 –110 –110 –120 –120 –120 0 10 20 30 40 50 60 0 10 20 30 40 50 60 0 10 20 30 40 50 60 FREQUENCY (MHz) 22532 G04 FREQUENCY (MHz) 22532 G05 FREQUENCY (MHz) 22532 G06
LTC2253: 8192 Point 2-Tone FFT, fIN = 28.2MHz and 26.8MHz, –1dB, LTC2253: Grounded Input LTC2253: SNR vs Input Frequency, 2V Range, 125Msps Histogram, 125Msps –1dB, 2V Range, 125Msps
0 70000 73 –10 58717 72 –20 60000 –30 71 50000 –40 70 –50 40000 –60 69 –70 COUNT 30000 SNR (dBFS) AMPLITUDE (dB) 68 –80 20000 –90 67 –100 10000 66 –110 4249 2562 0 0 –120 0 65 0 10 20 30 40 50 60 2044 2045 2046 2047 2048 0 50 100 150 200 250 300 350 FREQUENCY (MHz) 22532 G07 CODE 22532 G08 INPUT FREQUENCY (MHz) 22532 G09 22532fa 6