Datasheet LTC1415 (Analog Devices) - 5

LTC1415
W U TYPICAL PERFORMANCE CHARACTERISTICS S/(N + D) vs Input Frequency Signal-to-Noise Ratio vs and Amplitude Input Frequency Distortion vs Input Frequency
80 80 0 VIN = 0dB 70 –10 70 –20 60 60 VIN = –20dB –30 50 50 –40 40 40 –50 –60 30 30 –70 THD 20 VIN = –60dB 20 –80 2ND SIGNAL-TO -NOISE RATIO (dB) SIGNAL/(NOISE + DISTORTION) (dB) 10 10 –90 3RD 0 AMPLITUDE (dB BELOW THE FUNDAMENTAL) –100 0 1k 10k 100k 1M 2M 1k 10k 100k 1M 2M 1k 10k 100k 1M 2M INPUT FREQUENCY (Hz) INPUT FREQUENCY (Hz) INPUT FREQUENCY (Hz) LTC1415 • TPC01 LTC1415 • TPC02 LTC1415 • TPC03
Spurious-Free Dynamic Range vs Input Frequency Intermodulation Distortion Plot
0 0 fSAMPLE = 1.25MHz –10 f –20 IN1 = 86.97509766kHz f –20 IN2 = 113.2202148kHz –30 –40 fb – fa 2fb – fa –40 fa + fb 2fa –60 + fb –50 2fa – fb 2fa 2fb fa + 2fb 3fa 3fb –60 AMPLITUDE (dB) –80 –70 –100 SPURIOUS-FREE DYNAMIC RANGE (dB) –80 –90 –120 10k 100k 1M 2M 0 100k 200k 300k 400k 500k 600k INPUT FREQUENCY (Hz) FREQUENCY (Hz) LTC1415 • TPC04 LTC1415 • TPC05
Integral Nonlinearity vs Differential Nonlinearity vs Output Code Output Code
1.00 1.00 0.50 0.50 0.00 0.00 INL ERROR (LSBs) DNL ERROR (LSBs) –0.50 –0.50 –1.00 –1.00 0 512 1024 1536 2048 2560 3072 3584 4096 0 512 1024 1536 2048 2560 3072 3584 4096 OUTPUT CODE OUTPUT CODE LTC1415 • TPC07 LTC1415 • TPC06 5