Datasheet LTC2251, LTC2250 (Analog Devices) - 6

LTC2251/LTC2250
W U TYPICAL PERFOR A CE CHARACTERISTICS LTC2251: 8192 Point FFT, LTC2251: Typical INL, LTC2251: Typical DNL, fIN = 5MHz, –1dB, 2V Range, 2V Range, 125Msps 2V Range, 125Msps 125Msps
1.0 1.0 0 0.8 0.8 –10 –20 0.6 0.6 –30 0.4 0.4 –40 0.2 0.2 –50 0 0 –60 –0.2 –0.2 –70 INL ERROR (LSB) AMPLITUDE (dB) –0.4 DNL ERROR (LSB) –0.4 –80 –90 –0.6 –0.6 –100 –0.8 –0.8 –110 –1.0 –1.0 –120 0 256 512 768 1024 0 256 512 768 1024 0 10 20 30 40 50 60 CODE 22510 G01 CODE 22510 G02 FREQUENCY (MHz) 22510 G03
LTC2251: 8192 Point FFT, LTC2251: 8192 Point FFT, LTC2251: 8192 Point FFT, f f IN = 30MHz, –1dB, 2V Range, IN = 70MHz, –1dB, 2V Range, fIN = 140MHz, –1dB, 2V Range, 125Msps 125Msps 125Msps
0 0 0 –10 –10 –10 –20 –20 –20 –30 –30 –30 –40 –40 –40 –50 –50 –50 –60 –60 –60 –70 –70 –70 AMPLITUDE (dB) –80 AMPLITUDE (dB) –80 AMPLITUDE (dB) –80 –90 –90 –90 –100 –100 –100 –110 –110 –110 –120 –120 –120 0 10 20 30 40 50 60 0 10 20 30 40 50 60 0 10 20 30 40 50 60 FREQUENCY (MHz) FREQUENCY (MHz) 22510 G04 FREQUENCY (MHz) 22510 G05 22510 G06
LTC2251: 8192 Point 2-Tone FFT, f LTC2251: Grounded Input LTC2251: SNR vs Input Frequency, IN = 28.2MHz and 26.8MHz, –1dB, 2V Range, 125Msps Histogram, 125Msps –1dB, 2V Range, 125Msps
0 70000 65 65528 –10 64 –20 60000 63 –30 50000 62 –40 –50 61 40000 –60 60 –70 COUNT 30000 SNR (dBFS) 59 AMPLITUDE (dB) –80 20000 58 –90 57 –100 10000 –110 56 0 0 –120 0 55 0 10 20 30 40 50 60 510 511 512 0 50 100 150 200 250 300 350 FREQUENCY (MHz) 22510 G07 CODE INPUT FREQUENCY (MHz) 22510 G08 22510 G09 22510fa 6