Datasheet LTC2261-14, LTC2260-14, LTC2259-14 (Analog Devices) - 10

LTC2261-14 LTC2260-14/LTC2259-14
Typical perForMance characTerisTics LTC2261-14: 8k Point FFT, fIN = 30MHz LTC2261-14: 8k Point FFT, fIN = 70MHz LTC2261-14: 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) 226114 G04 226114 G05 226114 G06
LTC2261-14: 8k Point 2-Tone FFT, LTC2261-14: SNR vs Input fIN = 70MHz, 75MHz, –1dBFS, LTC2261-14: Shorted Input Frequency, –1dB, 2V Range, 125Msps Histogram 125Msps
0 6000 74 –10 73 –20 5000 –30 72 –40 4000 71 –50 –60 3000 70 COUNT –70 SNR (dBFS) 69 AMPLITUDE (dBFS) –80 2000 –90 68 –100 1000 67 –110 –120 0 66 0 10 20 30 40 50 60 8178 8180 8182 8184 8186 0 50 100 150 200 250 300 350 FREQUENCY (MHz) OUTPUT CODE INPUT FREQUENCY (MHz) 226114 G07 226114 G08 226114 G09
LTC2261-14: SFDR vs Input Frequency, –1dB, 2V Range, LTC2261-14: SFDR vs Input Level, LTC2261-14: IVDD vs Sample Rate, 125Msps fIN = 70MHz, 2V Range, 125Msps 5MHz Sine Wave Input, –1dB
95 110 80 dBFS 100 90 90 75 80 LVDS OUTPUTS 85 70 70 dBc 60 (mA) 80 65 50 DDIV CMOS OUTPUTS SFDR (dBFS) 40 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) 226114 G10 226114 G12 226114 G13 226114fc 10 For more information www.linear.com/LTC2261-14 Document Outline Features Applications Description 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