Datasheet LTC1749 (Analog Devices) - 8

LTC1749
W U TYPICAL PERFOR A CE CHARACTERISTICS SFDR (HD2 and HD3) vs Input SFDR (HD2 and HD3) vs Input SNR vs Input Frequency and Frequency and Amplitude, Frequency and Amplitude, Amplitude, PGA = 1 PGA = 0 PGA = 1
71.0 100 100 –10dB –20dB 70.5 –20dB –20dB 70.0 90 –10dB 90 69.5 –1dB –1dB –10dB 69.0 –1dB 80 68.5 80 SNR (dBFS) 68.0 SFDR (dBFS) SFDR (dBFS) 70 67.5 70 67.0 60 66.5 66.0 60 50 0 100 200 300 400 500 0 50 100 150 200 250 300 0 100 200 300 400 500 INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) 1749 G25 1749 G26 1749 G27
SFDR and SNR vs Sample Rate, SFDR and SNR vs VDD, 15.2MHz, 15.2MHz, –1dB Input –1dB Input Supply Current vs Sample Rate
100 100 310 95 95 300 90 90 290 SFDR SFDR 85 85 280 80 80 SNR 270 75 75 SNR SFDR AND SNR (dBFS) SFDR AND SNR (dBFS) 260 70 70 SUPPLY CURRENT (mA) 65 65 250 60 60 240 0 20 40 60 80 100 120 4.1 4.3 4.5 4.7 4.9 5.1 5.3 5.5 0 20 40 60 80 100 SAMPLE RATE (Msps) VDD (V) SAMPLE RATE (Msps) 1749 G28 1749 G29 1749 G30 1749f 8