Datasheet LTC1407-1, LTC1407A-1 (Analog Devices) - 6

LTC1407-1/LTC1407A-1
TYPICAL PERFORMANCE CHARACTERISTICS VDD = 3V, TA = 25°C. Single-ended signals drive +CH0/+CH1 with –CH0/–CH1 = 1.5V DC, differential signals drive both inputs with VCM = 1.5V DC (LTC1407A-1) ENOBs and SINAD THD, 2nd and 3rd vs Input Sinewave Frequency vs Input Frequency SFDR vs Input Frequency
12.0 74 –44 104 –50 98 11.5 71 –56 92 11.0 68 –62 86 SINAD (dB) 10.5 65 –68 80 THD 10.0 62 –74 74 3RD –80 SFDR (dB) 68 ENOBs (BITS) 9.5 59 2ND THD, 2ND, 3RD (dB) –86 62 9.0 56 –92 56 8.5 53 –98 50 8.0 50 –104 44 0.1 1 10 100 0.1 1 10 100 0.1 1 10 100 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 14071 G01 14071 G02 14071 G03
ENOBs and SINAD THD, 2nd and 3rd vs Input Sinewave Frequency vs Input Frequency for SNR vs Input Frequency for Differential Input Signals Differential Input Signals
74 12.0 74 –44 –50 71 11.5 71 –56 68 11.0 68 –62 65 SINAD (dB) 10.5 65 –68 62 10.0 62 –74 SNR (dB) THD –80 3RD 59 ENOBs (BITS) 9.5 59 THD, 2nd, 3rd (dB) –86 56 9.0 56 –92 53 8.5 53 2ND –98 50 8.0 50 –104 0.1 1 10 100 0.1 1 10 100 0.1 1 10 20 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 14071 G04 14071 G05 14071 G06
SFDR vs Input Frequency for 98kHz Sine Wave 4096 Point 748kHz Sine Wave 4096 Point Differential Input Signals FFT Plot FFT Plot
104 0 0 98 –10 –10 –20 –20 92 –30 –30 86 –40 –40 80 –50 –50 74 –60 –60 SFDR (dB) 68 –70 –70 MAGNITUDE (dB) –80 MAGNITUDE (dB) –80 62 –90 –90 56 –100 –100 50 –110 –110 44 –120 –120 0.1 1 10 100 0 100 200 300 400 500 600 700 0 100 200 300 400 500 600 700 FREQUENCY (MHz) FREQUENCY (kHz) FREQUENCY (kHz) 14071 G07 14071 G08 14071 G09 14071fb 6