Datasheet LTC1744 (Analog Devices) - 8

LTC1744
W U TYPICAL PERFOR A CE CHARACTERISTICS (Note 5) SFDR vs Input Frequency and SFDR vs Input Frequency and 2nd and 3rd Harmonic vs Input Amplitude, 3.2V Range Amplitude, 2V Range Frequency, 3.2V Range, –1dB
120 120 –60 T T A = 25°C A = 25°C TA = 25°C – 20dBFS – 20dBFS 3rd HARMONIC 110 110 –70 100 100 – 6dBFS – 6dBFS –80 90 90 SFDR (dBFS) SFDR (dBFS) –1dBFS –90 80 80 AMPLITUDE (dBc) –1dBFS –100 70 70 2nd HARMONIC 60 60 –110 1 10 100 1 10 100 1 10 100 INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) 1744 G33 1744 G32 1744 G28
2nd and 3rd Harmonic vs Input Worst Harmonic 4th or Higher vs Worst Harmonic 4th or Higher vs Frequency, 2V Range, –1dB Input Frequency, 3.2V Range, –1dB Input Frequency, 2V Range, –1dB
–60 –60 –60 TA = 25°C TA = 25°C TA = 25°C –70 –70 –70 3rd HARMONIC –80 –80 –80 –90 –90 –90 AMPLITUDE (dBc) AMPLITUDE (dBc) –100 AMPLITUDE (dBc) –100 –100 2nd HARMONIC –110 –110 –120 –110 1 10 100 1 10 100 1 10 100 INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) 1744 G26 1744 G29 1744 G27
SFDR vs Input Amplitude, 2V Range, 5MHz Input Frequency Power Dissipation vs Sample Rate
110 1175 T T A = 25°C A = 25°C 1150 100 SFDR dBFS 1125 90 SFDR dBc 1100 80 1075 70 POWER (mW) 1050 SFDR (dBc AND dBFS) 60 1025 50 1000 40 975 –60 –40 –20 0 0 10 20 30 40 50 INPUT AMPLITUDE (dBFS) SAMPLE RATE (Msps) 1744 G34 1744 G35 1744f 8