Datasheet LTC2274 (Analog Devices) - 10

LTC2274
TYPICAL PERFORMANCE CHARACTERISTICS VDD = 3.3V, OVDD = 1.5V, TA = 25°C, FS = 105Msps, unless otherwise noted. 64k Point FFT, fIN = 250.2MHz, SFDR (HD2 and HD3) vs –1dBFS, PGA = 1 Input Frequency SNR vs Input Frequency
0 105 78 –10 100 –20 76 –30 95 PGA = 0 –40 74 –50 ) 90 ) (dBFS) S 72 –60 (dBc PGA = 1 85 (dBF PGA = 1 –70 DR R 70 –80 SF 80 SN PGA = 0 AMPLITUDE –90 68 –100 75 –110 70 66 –120 –130 65 64 0 10 20 30 40 50 0 100 200 300 400 500 0 100 200 300 400 500 FREQUENCY (MHz) INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) 2274 G19 2274 G20 2274 G21
SNR and SFDR vs Sample Rate, SNR and SFDR vs Supply Voltage fIN = 5.1MHz (VDD), fIN = 5.2MHz
110 110 105 105 SFDR SFDR 100 100 95 95 LIMIT LOWER LIMIT UPPER LIMIT 90 90 85 85 80 SNR SNR AND SFDR (dBFS) 80 SNR SNR (dBFS) AND SFDR (dBC) 75 75 70 70 20 40 60 80 100 120 2.8 3.0 3.2 3.4 SAMPLE RATE (Msps) SUPPLY VOLTAGE (V) 2274 G22 2274 G23
SFDR vs Analog Input Common Mode Voltage, 5MHz IVDD vs Sample Rate, 5MHz Sine, and 70MHz, –1dBFS –1dBFS
110 420 410 105 5MHz 400 100 390 95 380 ) 370 90 (dBc (mA) 360 85 DR DD 350 80 70MHz IV SF 340 75 330 320 70 310 65 300 60 290 0.50 0.75 1.00 1.25 1.50 1.75 2.00 0 40 80 120 ANALOG INPUT COMMON MODE VOLTAGE (V) SAMPLE RATE (Msps) 2274 G25 2274 G02 2274fb 10