Datasheet LTC2253, LTC2252 (Analog Devices) - 7

LTC2253/LTC2252
W U TYPICAL PERFOR A CE CHARACTERISTICS LTC2253: SFDR vs Input Frequency, LTC2253: SNR and SFDR vs Sample LTC2253: SNR vs Input Level, –1dB, 2V Range, 125Msps Rate, 2V Range, fIN = 5MHz, –1dB fIN = 70MHz, 2V Range, 125Msps
95 90 80 SFDR 70 90 dBFS 80 60 85 50 SNR dBc 80 70 40 SFDR (dBFS) 30 75 SNR AND SFDR (dBFS) SNR (dBc AND dBFS) 60 20 70 10 65 50 0 0 50 100 150 200 250 300 350 0 20 40 60 80 100 120 140 160 –60 –50 –40 –30 –20 –10 0 INPUT FREQUENCY (MHz) SAMPLE RATE (Msps) INPUT LEVEL (dBFS) 22532 G10 22532 G11 22532 G13
LTC2253: SFDR vs Input Level, LTC2253: IVDD vs Sample Rate, fIN = 70MHz, 2V Range, 125Msps 5MHz Sine Wave Input, –1dB
110 145 100 140 dBFS 90 135 80 130 70 2V RANGE dBc 125 60 1V RANGE (mA) 120 50 I VDD 115 40 SFDR (dBc AND dBFS) 110 30 20 105 10 100 0 95 –60 –50 –40 –30 –20 –10 0 0 20 40 60 80 100 120 140 INPUT LEVEL (dBFS) SAMPLE RATE (Msps) 22532 G14 22532 G15
LTC2253: IOVDD vs Sample Rate, 5MHz Sine Wave Input, –1dB, LTC2253: SNR vs SENSE, OVDD = 1.8V fIN = 5MHz, –1dB
8 72 7 71 6 70 5 69 (mA) 4 68 I OVDD 3 SNR (dBFS) 67 2 66 1 65 0 64 0 20 40 60 80 100 120 140 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 SAMPLE RATE (Msps) SENSE PIN (V) 22532 G16 22532 G32 22532fa 7