Datasheet LTC2273, LTC2272 (Analog Devices) - 9

LTC2273/LTC2272
TYPICAL PERFORMANCE CHARACTERISTICS VDD = 3.3V, OVDD = 1.5V, TA = 25°C, FS = 80Msps, unless otherwise noted. LTC2273: 64k Point 2-Tone FFT, fIN = 14.01MHz and 15.8MHz, LTC2273: 64k Point FFT, LTC2273: 64k Point FFT, –15dBFS, PGA = 0 fIN = 70MHz, –1dBFS, PGA = 0 fIN = 70MHz, –1dBFS, PGA = 1
0 0 0 –10 –10 –10 –20 –20 –20 –30 –30 –30 –40 –40 –40 –50 –50 –50 (dBFS) (dBFS) (dBFS) –60 –60 –60 –70 –70 –70 –80 –80 –80 AMPLITUDE –90 AMPLITUDE –90 AMPLITUDE –90 –100 –100 –100 –110 –110 –110 –120 –120 –120 –130 –130 –130 0 10 20 30 40 0 10 20 30 40 0 10 20 30 40 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 22732 G10 22732 G11 22732 G12
LTC2273: 128k Point FFT, LTC2273: 128k Point FFT, fIN = 70MHz, –20dBFS, fIN = 70MHz, –20dBFS, LTC2273: 64k Point FFT, PGA = 0, Dither “Off” PGA = 0, Dither “On” fIN = 140.2MHz, –1dBFS, PGA = 1
0 0 0 –10 –10 –10 –20 –20 –20 –30 –30 –30 –40 –40 –40 –50 –50 –50 (dBFS) (dBFS) (dBFS) –60 –60 –60 –70 –70 –70 –80 –80 –80 AMPLITUDE –90 AMPLITUDE –90 AMPLITUDE –90 –100 –100 –100 –110 –110 –110 –120 –120 –120 –130 –130 –130 0 10 20 30 40 0 10 20 30 40 0 10 20 30 40 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 22732 G13 22732 G14 22732 G15
LTC2273: SFDR vs Input Level, LTC2273: SFDR vs Input Level, fIN = 140MHz, PGA = 1, fIN = 140MHz, PGA = 1, LTC2273: 64k Point FFT, Dither “Off” Dither “On” fIN = 170.2MHz, –1dBFS, PGA = 1
140 140 0 130 130 –10 –20 120 120 –30 ) 110 ) 110 FS FS –40 B B d 100 d 100 –50 (dBFS) AND 90 AND 90 –60 Bc 80 Bc 80 –70 (d (d 70 70 –80 DR DR SF AMPLITUDE –90 60 SF 60 –100 50 50 –110 40 40 –120 30 30 –130 –80 –70 –60 –50 –40 –30 –20 –10 0 –80 –70 –60 –50 –40 –30 –20 –10 0 0 10 20 30 40 INPUT LEVEL (dBFS) INPUT LEVEL (dBFS) FREQUENCY (MHz) 22732 G16 22732 G17 22732 G18 22732fa 9