Datasheet LTC1408 (Analog Devices) - 5

LTC1408
W U TYPICAL PERFOR A CE CHARACTERIST V ICS DD = 3V, TA = 25
°
C THD, 2nd and 3rd THD, 2nd and 3rd SINAD, ENOBs vs Frequency vs Input Frequency vs Input Frequency
77 12.5 –44 –44 UNIPOLAR SINGLE ENDED BIPOLAR SINGLE ENDED 74 12 –50 –50 VCM = 1.5V –56 5 HARMONIC THD –56 71 11.5 2nd –62 –62 ENOBS (bits) 68 11 –68 –68 3rd 5 HARMONIC THD 65 10.5 –74 –74 3rd SINAD (dB) THD (dB) –80 THD (dB) –80 62 10 –86 –86 2nd 59 9.5 UNIPOLAR SINGLE ENDED –92 –92 56 9 BIPOLAR –98 –98 DIFFERENTIAL 53 8.5 –104 –104 0.1 1 10 100 0.1 1 10 100 0.1 1 10 100 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 1408 G01 1408 G02 1408 G03
98kHz Unipolar Sine Wave 4096 SFDR vs Input Frequency SNR vs Input Frequency Point FFT Plot, 100 ksps
104 76 0 98 75 BIPOLAR –10 74 DIFFERENTIAL –20 92 BIPOLAR DIFFERENTIAL 73 –30 86 72 –40 80 UNIPOLAR 71 SINGLE ENDED –50 74 70 –60 SFDR (dB) 68 SNR (dB) 69 –70 68 –80 62 UNIPOLAR SINGLE ENDED 67 OUTPUT MAGNITUDE (dB) –90 56 66 –100 50 65 –110 44 64 –120 0.1 1 10 100 0.1 1 10 100 0 10 20 30 40 50 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY(kHz) 1408 G04 1408 G05 1408 G06
591kHz Bipolar Differential Sine 101kHz Unipolar Single Ended 98kHz Bipolar Sine Wave 4096 Wave 4096 Point FFT Plot, Sine Wave 4096 Point FFT Plot, Point FFT Plot, 100 ksps 100 ksps 625 ksps
0 0 0 –10 –10 –10 –20 –20 –20 –30 –30 –30 –40 –40 –40 –50 –50 –50 –60 –60 –60 –70 –70 –70 –80 –80 –80 OUTPUT MAGNITUDE (dB) –90 OUTPUT MAGNITUDE (dB) –90 OUTPUT MAGNITUDE (dB) –90 –100 –100 –100 –110 –110 –110 –120 –120 –120 0 10 20 30 40 50 0 10 20 30 40 50 0 62.5 125 188 250 313 FREQUENCY(kHz) FREQUENCY(kHz) FREQUENCY(kHz) 1408 G07 1408 G08 1408 G09 1408fa 5