Datasheet LTC2251, LTC2250 (Analog Devices) - 9

LTC2251/LTC2250
W U TYPICAL PERFOR A CE CHARACTERISTICS LTC2250: SNR and SFDR vs LTC2250: SFDR vs Input Frequency, LTC2250: SNR vs Input Level, Sample Rate, 2V Range, f –1dB, 2V Range, 105Msps f IN = 70MHz, 2V Range, 105Msps IN = 5MHz, –1dB
95 90 80 70 SFDR 90 dBFS 80 60 85 50 80 70 40 dBc SFDR (dBFS) 30 75 SNR SNR (dBc AND dBFS) SNR AND SFDR (dBFS) 60 20 70 10 65 50 0 0 50 100 150 200 250 300 350 0 20 40 60 80 100 120 140 –50 –40 –30 –20 –10 0 INPUT FREQUENCY (MHz) 55210 G25 SAMPLE RATE (Msps) 22510 G26 INPUT LEVEL (dBFS) 22510 G27
LTC2250: SFDR vs Input Level, LTC2250: IVDD vs Sample Rate, f 5MHz Sine Wave Input, –1dB IN = 70MHz, 2V Range, 105Msps
100 120 dBFS 90 115 80 110 70 dBc 105 60 2V RANGE 100 50 (mA) 1V RANGE 95 40 I VDD 90 SFDR (dBc AND dBFS) 30 85 20 10 80 0 75 –50 –40 –30 –20 –10 0 0 20 40 60 80 100 120 INPUT LEVEL (dBFS) 22510 G28 SAMPLE RATE (Msps) 22510 G29
LTC2250: IOVDD vs Sample Rate, 5MHz Sine Wave Input, –1dB, LTC2250: SNR vs SENSE, OVDD = 1.8V fIN = 5MHz, –1dB
7 61.8 6 61.6 61.4 5 61.2 4 (mA) 61.0 3 I OVDD SNR (dBFS) 60.8 2 60.6 1 60.4 0 60.2 0 20 40 60 80 100 120 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 SAMPLE RATE (Msps) SENSE PIN (V) 22510 G32 22510 G30 22510fa 9