Datasheet LTC2298, LTC2297, LTC2296 (Analog Devices) - 10

LTC2298/LTC2297/LTC2296
W U TYPICAL PERFOR A CE CHARACTERISTICS LTC2296: 8192 Point FFT, LTC2296: 8192 Point FFT, LTC2296: 8192 Point FFT, fIN = 30MHz, –1dB, 2V Range, fIN = 70MHz, –1dB, 2V Range, fIN = 140MHz, –1dB, 2V Range, 25Msps 25Msps 25Msps
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 2 4 6 8 10 12 0 2 4 6 8 10 12 0 2 4 6 8 10 12 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 2296 G04 2296 G05 2296 G06
LTC2296: 8192 Point 2-Tone FFT, fIN = 10.9MHz and 13.8MHz, LTC2296: Grounded Input LTC2296: SNR vs Input Frequency, –1dB, 2V Range, 25Msps Histogram, 25Msps –1dB, 2V Range, 25Msps
0 25000 75 –10 22016 –20 20000 18803 74 –30 –40 –50 15000 73 13373 –60 COUNT –70 10000 SNR (dBFS) 72 AMPLITUDE (dB) –80 6919 –90 5000 71 –100 3227 –110 853 278 43 –120 0 70 0 2 4 6 8 10 12 8179 8180 8181 8182 8183 8184 8185 8186 0 50 100 150 200 FREQUENCY (MHz) CODE INPUT FREQUENCY (MHz) 2296 G07 2296 G08 2296 G09
LTC2296: SFDR vs Input LTC2296: SNR and SFDR vs Frequency, –1dB, 2V Range, Sample Rate, 2V Range, LTC2296: SNR vs Input Level, 25Msps fIN = 5MHz, –1dB fIN = 5MHz, 2V Range, 25Msps
100 110 80 dBFS 95 70 100 60 90 SFDR 50 85 90 dBc 40 80 SFDR (dBFS) 80 30 SNR 75 SNR (dBc AND dBFS) SNR AND SFDR (dBFS) 20 70 70 10 65 60 0 0 50 100 150 200 0 10 20 30 40 50 –60 –50 –40 –30 –20 –10 0 INPUT FREQUENCY (MHz) SAMPLE RATE (Msps) INPUT LEVEL (dBFS) 2296 G10 2296 G11 2296 G12 229876fa 10