Datasheet LTC2274 (Analog Devices) - 9

LTC2274
TYPICAL PERFORMANCE CHARACTERISTICS VDD = 3.3V, OVDD = 1.5V, TA = 25°C, FS = 105Msps, unless otherwise noted. 64k Point 2-Tone FFT, fIN = 14.2MHz and 15.8MHz, 64k FFT, fIN = 70.1MHz, –1dBFS, 64k FFT, fIN = 70.1MHz, –1dBFS, –15dBFS, PGA = 0 PGA = 0 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 50 0 10 20 30 40 50 0 10 20 30 40 50 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 2274 G10 2274 G11 2274 G12
128k Point FFT, fIN = 70.1MHz, 128k Point FFT, fIN = 70.1MHz, 64k Point FFT, fIN = 140.2MHz, –20dBFS, PGA = 0, Dither “Off” –20dBFS, PGA = 0, Dither “On” –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 50 0 10 20 30 40 50 0 10 20 30 40 50 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 2274 G13 2274 G14 2274 G15
SFDR vs Input Level, SFDR vs Input Level, fIN = 140MHz, PGA = 1, fIN = 140MHz, PGA = 1, 64k Point FFT, fIN = 170.2MHz, Dither “Off” Dither “On” –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 50 INPUT LEVEL (dBFS) INPUT LEVEL (dBFS) FREQUENCY (MHz) 2274 G16 2274 G17 2274 G18 2274fb 9