Datasheet LTC1420 (Analog Devices) - 5

LTC1420
W U TYPICAL PERFOR A CE CHARACTERISTICS S/(N+D) vs Input Frequency Spurious-Free Dynamic Range and Amplitude vs Input Amplitude Distortion vs Input Frequency
75 100 –50 dBFS DUAL SUPPLIES VIN = 0dB –55 ±2.048V RANGE 90 GAIN = 1× 70 –60 AIN = 0dBFS VIN = –6dB 80 –65 65 dBc –70 70 DUAL SUPPLIES –75 60 ±2.048V RANGE S/(N + D) (dB) GAIN = 1× 60 DISTORTION (dB) –80 SFDR (dBc AND dBFS) DUAL SUPPLIES THD –85 55 50 ±2.048V RANGE V 3RD 2ND IN = –20dB GAIN = 1× –90 fIN = 5MHz 50 40 –95 0.1 1 10 100 –50 –40 –30 –20 –10 0 0 1 10 100 INPUT FREQUENCY (MHz) INPUT AMPLITUDE (dBFS) INPUT FREQUENCY (MHz) 1420 G01 1420 G03 1420 G04
S/(N+D) vs Input Frequency Spurious-Free Dynamic Range and Amplitude vs Input Amplitude Distortion vs Input Frequency
75 100 –50 SINGLE SUPPLY SINGLE SUPPLY dBFS –55 ±1.024V RANGE V ±1.024V RANGE IN = 0dB GAIN = 2 90 GAIN = 2× 70 × –60 AIN = 0dBFS V 80 –65 IN = –6dB 65 dBc –70 70 –75 60 S/(N + D) (dB) 60 DISTORTION (dB) –80 SFDR (dBc AND dBFS) SINGLE SUPPLY THD 3RD –85 55 50 ±1.024V RANGE 2ND GAIN = 2× V –90 IN = –20dB fIN = 5MHz 50 40 –95 0.1 1 10 100 –50 –40 –30 –20 –10 0 0 1 10 100 INPUT FREQUENCY (MHz) INPUT AMPLITUDE (dBFS) INPUT FREQUENCY (MHz) 1420 G02 1420 G05 1420 G06
SFDR vs Input Frequency, SFDR vs Input Frequency, Differential Input Differential Input Grounded Input Histogram
–50 –50 DUAL SUPPLIES SINGLE SUPPLY VREF = 4.096V 410554 –55 ±2.048V RANGE –55 ±1.024V RANGE GAIN = 1× GAIN = 1× GAIN = 2× –60 A –60 IN = 0dBFS AIN = 0dBFS –65 –65 –70 –70 –75 –75 HITS SFDR (dB) –80 SFDR (dB) –80 –85 –85 –90 –90 –95 –95 1570 1572 –100 –100 0.1 1 10 100 0.1 1 10 100 N – 1 N N + 1 INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) CODE 1420 F07 1420 F08 1420 F09 1420fa 5