Datasheet LTC2145-14, LTC2144-14, LTC2143-14 (Analog Devices) - 10

LTC2145-14/ LTC2144-14/LTC2143-14
TYPICAL PERFORMANCE CHARACTERISTICS LTC2145-14: 2nd, 3rd Harmonic LTC2145-14: 2nd, 3rd Harmonic vs Input Frequency, –1dBFS, vs Input Frequency, –1dBFS, LTC2145-14: SFDR vs Input Level, 125Msps, 2V Range 125Msps, 1V Range fIN = 70MHz, 125Msps, 2V Range
100 100 120 dBFS 110 95 95 100 90 90 3RD 90 3RD 2ND 85 85 80 dBc 2ND 80 80 70 60 75 75 SFDR (dBc AND dBFS) 50 2ND AND 3RD HARMONIC (dBFS) 70 2ND AND 3RD HARMONIC (dBFS) 70 40 65 65 30 0 50 100 150 200 250 300 0 50 100 150 200 250 300 –80 –70 –60 –50 –40 –30 –20 –10 0 INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) INPUT LEVEL (dBFS) 21454314 G10 218543 G11 21454314 G12
LTC2145-14: IVDD vs Sample LTC2145-14: IOVDD vs Sample Rate, 5MHz, –1dBFS, Sine Wave Rate, 5MHz, –1dBFS, Sine Wave LTC2145-14: SNR vs SENSE, Input on Each Channel on Each Input fIN = 5MHz, –1dBFS
110 70 74 3.5mA LVDS 105 60 73 72 100 50 LVDS OUTPUTS 71 95 40 (mA) (mA) 1.75mA LVDS 70 CMOS OUTPUTS 90 VDD I VDD 30 IO SNR (dBFS) 69 85 20 68 80 10 1.8V CMOS 67 75 0 66 0 25 50 75 100 125 0 25 50 75 100 125 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 SAMPLE RATE (Msps) SAMPLE RATE (Msps) SENSE PIN (V) 21454314 G13 21454314 G14 21454314 G15
LTC2144-14: Integral LTC2144-14: Differential LTC2144-14: 64k Point FFT, Nonlinearity (INL) Nonlinearity (DNL) fIN = 5MHz, –1dBFS, 105Msps
2.0 1.0 0 –10 1.5 0.8 –20 0.6 1.0 –30 0.4 –40 0.5 0.2 –50 0 0 –60 –70 –0.5 –0.2 INL ERROR (LSB) DNL ERROR (LSB) –0.4 AMPLITUDE (dBFS) –80 –1.0 –90 –0.6 –100 –1.5 –0.8 –110 –2.0 –1.0 –120 0 4096 8192 12288 16384 0 4096 8192 12288 16384 0 10 20 30 40 50 OUTPUT CODE OUTPUT CODE FREQUENCY (MHz) 21454314 G16 21454314 G17 21454314 G1 21454314fa 10