Datasheet LTC2261-12, LTC2260-12, LTC2259-12 (Analog Devices) - 10

LTC2261-12 LTC2260-12/LTC2259-12
Typical perForMance characTerisTics LTC2261-12: 8k Point FFT, fIN = 30MHz LTC2261-12: 8k Point FFT, fIN = 70MHz LTC2261-12: 8k Point FFT, fIN = 140MHz –1dBFS, 125Msps –1dBFS, 125Msps –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) 226112 G04 226112 G05 226112 G06
LTC2261-12: 8k Point 2-Tone FFT, LTC2261-12: SNR vs Input fIN = 70MHz, 75MHz, –1dBFS, LTC2261-12: Shorted Input Frequency, –1dB, 2V Range, 125Msps Histogram 125Msps
0 18000 72 –10 16000 –20 71 –30 14000 –40 12000 70 –50 10000 –60 69 COUNT –70 8000 SNR (dBFS) AMPLITUDE (dBFS) –80 6000 68 –90 4000 –100 67 –110 2000 –120 0 66 0 10 20 30 40 50 60 2041 2043 2045 0 50 100 150 200 250 300 350 FREQUENCY (MHz) OUTPUT CODE INPUT FREQUENCY (MHz) 226112 G07 226112 G08 226112 G09
LTC2261-12: SFDR vs Input Frequency, –1dB, 2V Range, LTC2261-12: SFDR vs Input Level, LTC2261-12: IVDD vs Sample Rate, 125Msps fIN = 70MHz, 2V Range, 125Msps 5MHz Sine Wave Input, –1dB
95 110 80 dBFS 100 90 90 75 80 85 70 70 LVDS OUTPUTS dBc 60 80 (mA) 65 50 I VDD SFDR (dBFS) 40 CMOS OUTPUTS 75 60 SFDR (dBc AND dBFS) 30 70 20 55 10 65 0 50 0 50 100 150 200 250 300 350 –80 –70 –60 –50 –40 –30 –20 –10 0 0 25 50 75 100 125 INPUT FREQUENCY (MHz) INPUT LEVEL (dBFS) SAMPLE RATE (Msps) 226112 G10 226112 G12 226112 G13 226112fc 10 For more information www.linear.com/LTC2261-12 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configurations Order Information Converter Characteristics Analog Input Dynamic Accuracy Internal Reference Characteristics Digital Inputs and Outputs Power Requirements Timing Characteristics Timing Diagrams Typical Performance Characteristics Pin Functions Functional Block Diagram Applications Information Typical Applications Package Description Revision History Related Parts