Datasheet LTC2123 (Analog Devices) - 8

LTC2123
TYPICAL PERFORMANCE CHARACTERISTICS 64k Point FFT, fIN = 421.1MHz, 64k Point FFT, fIN = 567.1MHz, 64k Point FFT, fIN = 907.1MHz –1dBFS, 250Msps –1dBFS, 250Msps –1dBFS, 250Msps
0 0 0 –20 –20 –20 –40 –40 –40 –60 –60 –60 –80 AMPLITUDE (dBFS) –80 AMPLITUDE (dBFS) –80 AMPLITUDE (dBFS) –100 –100 –100 –120 –120 –120 0 20 40 60 80 100 120 0 20 40 60 80 100 120 0 20 40 60 80 100 120 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 2123 G10 2123 G11 2123 G12
64k Point 2-Tone FFT, fIN = 71.1MHz SFDR vs Input Level, fIN = 70MHz, SNR vs Input Level, fIN = 70MHz, and 69MHz, –7dBFS, 250Msps 1.5V Range, 250Msps 1.5V Range, 250Msps
0 120 80 110 dBFS 70 –20 100 dBFS 90 60 –40 80 50 70 –60 60 dBc 40 50 dBc 30 –80 AMPLITUDE (dBFS) 40 SFDR (dBc AND dBFS) SNR (dBc AND dBFS) 30 20 –100 20 10 10 –120 0 0 0 20 40 60 80 100 120 –80 –70 –60 –50 –40 –30 –20 –10 0 –70 –60 –50 –40 –30 –20 –10 0 FREQUENCY (MHz) INPUT LEVEL (dBFS) INPUT LEVEL (dBFS) 2123 G13 2123 G14 2123 G15
SFDR vs Input Frequency, SNR vs Input Frequency, –1dBFS, IVDD vs Sample Rate, –1dBFS, 1.5V Range, 250Msps 1.5V Range, 250Msps fIN = 15MHz, –1dBFS
100 75 530 95 70 510 90 490 85 65 4 LANE 470 80 60 450 75 (mA) 430 70 55 SFDR (dBFS) SNR (dBFS) I VDD 2 LANE 65 410 50 60 390 45 55 370 50 40 350 0 200 400 600 800 1000 0 200 400 600 800 1000 40 80 120 160 200 240 280 INPUT FREQUENCY (MHz) INPUT FREQUENCY (MHz) SAMPLE RATE (Msps) 2123 G16 2123 G17 2123 G18 2123fc 8 For more information www.linear.com/LTC2123 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Converter Characteristics Pin Configuration Analog Input Dynamic Accuracy Internal Reference Characteristics Power Requirements Digital Inputs and Outputs Timing Characteristics Typical Performance Characteristics Pin Functions Block Diagram Timing Diagram SPI Timing Definitions Applications Information Typical Applications Package Description Typical Application Related Parts