Datasheet LTC2145-12, LTC2144-12, LTC2143-12 (Analog Devices) - 9

LTC2145-12/ LTC2144-12/LTC2143-12
TYPICAL PERFORMANCE CHARACTERISTICS LTC2145-12: Integral LTC2145-12: Differential LTC2145-12: 64k Point FFT, fIN = Non-Linearity (INL) Non-Linearity (DNL) 5MHz, –1dBFS, 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 0 –60 –0.2 –0.2 –70 INL ERROR (LSB) –0.4 DNL ERROR (LSB) –0.4 AMPLITUDE (dBFS) –80 –90 –0.6 –0.6 –100 –0.8 –0.8 –110 –1.0 –1.0 –120 0 1024 2048 3072 4096 0 1024 2048 3072 4096 0 10 20 30 40 50 60 OUTPUT CODE OUTPUT CODE FREQUENCY (MHz) 21454312 G01 21454312 G02 21454312 G03
LTC2145-12: 64k Point FFT, LTC2145-12: 64k Point FFT, LTC2145-12: 64k Point FFT, fIN = 30MHz, –1dBFS, 125Msps fIN = 70MHz, –1dBFS, 125Msps fIN = 140MHz, –1dBFS, 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 (dBFS) –80 AMPLITUDE (dBFS) –80 AMPLITUDE (dBFS) –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) FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 21454312 G04 21454312 G05 21454312 G05 21454312 G06 21454312 G06
LTC2145-12: 64k Point 2-Tone FFT, fIN = 69MHz, 70MHz, LTC2145-12: Shorted Input LTC2145-12: SNR vs Input Frequency, –7dBFS, 125Msps Histogram –1dBFS, 125Msps, 2V Range
0 18000 72 –10 16000 –20 14000 –30 71 –40 12000 SINGLE-ENDED ENCODE –50 10000 –60 70 COUNT 8000 –70 SNR (dBFS) DIFFERENTIAL 6000 AMPLITUDE (dBFS) –80 ENCODE –90 4000 69 –100 2000 –110 –120 0 68 0 10 10 20 30 40 50 60 2043 2044 2045 2046 2047 0 50 100 150 200 250 300 FREQUENCY (MHz) FREQUENCY (MHz) OUTPUT CODE INPUT FREQUENCY (MHz) 21454312 21454312 G07 G07 21454312 G08 21454312 G09 21454312fa 9