Datasheet LTC1742 (Analog Devices) - 8

LTC1742
W U TYPICAL PERFOR A CE CHARACTERISTICS SFDR vs Input Frequency and SFDR vs Input Frequency and Amplitude, 3.2V Range, Amplitude, 2V Range, 2nd and 3rd Harmonic 2nd and 3rd Harmonic Shorted Input Histogram
100 100 35000 T T T –20dB A = 25°C A = 25°C –20dB A = 25°C 95 95 –10dB 30000 90 90 –10dB –6dB –6dB 25000 85 85 –1dB 20000 80 80 –1dB COUNT 15000 SFDR (dBFS) 75 SFDR (dBFS) 75 10000 70 70 65 65 5000 60 60 0 0 20 40 60 80 100 0 20 40 60 80 100 8140 8141 8142 8143 8144 8145 8146 8147 INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) CODE 1742 G25 1742 G26 1742 G27
SNR vs Input Frequency SNR vs Sample Rate, 5MHz Input, – 3.2V and 2V Range 1dB, 3.2V Range
77.0 78 TA = 25°C TA = 25°C 76.5 3.2V RANGE 76.0 77 75.5 76 75.0 74.5 75 74.0 SNR (dBFS) 73.5 SNR (dBFS) 74 73.0 2V RANGE 72.5 73 72.0 71.5 72 0 10 20 30 40 50 60 70 80 90 100 0 10 20 30 40 50 60 70 80 90 INPUT FREQUENCY (MHz) SAMPLE RATE (Msps) 1742 G28 1742 G29
SFDR vs Sample Rate, 5MHz Input, –1dB, 3.2V Range Supply Current vs Sample Rate
100 270 T T A = 25°C A = 25°C 95 260 90 250 85 80 240 SFDR (dBFS) 75 230 70 SUPPLY CURRENT (mA) 220 65 60 210 0 10 20 30 40 50 60 70 80 90 0 20 40 60 80 SAMPLE RATE (Msps) SAMPLE RATE (Msps) 1742 G30 1742 G31 1742f 8