Datasheet LTC2122 (Analog Devices) - 7

LTC2122
TYPICAL PERFORMANCE CHARACTERISTICS Integral Nonlinearity (INL) Differential Nonlinearity (DNL) AC Grounded Input Histogram
2.0 1.00 30000 1.5 0.75 25000 1.0 0.50 20000 0.5 0.25 0.0 0.00 15000 COUNT –0.5 –0.25 INL ERROR (LSB) DNL ERROR (LSB) 10000 –1.0 –0.50 5000 –1.5 –0.75 –2.0 –1.00 0 0 4096 8192 12288 16384 0 4096 8192 12288 16384 8192 8195 8198 8201 8204 8207 OUTPUT CODE OUTPUT CODE OUTPUT CODE 2122 G01 2122 G02 2122 G03
64k Point FFT, fIN = 15.0MHz, 64k Point FFT, fIN = 69.8MHz, 64k Point FFT, fIN = 140.0MHz, –1dBFS, 170Msps –1dBFS, 170Msps –1dBFS, 170Msps
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 0 20 40 60 80 0 20 40 60 80 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 2122 G04 2122 G05 2122 G06
64k Point FFT, fIN = 185.1MHz, 64k Point FFT, fIN = 223.1MHz, 64k Point FFT, fIN = 383.1MHz, –1dBFS, 170Msps –1dBFS, 170Msps –1dBFS, 170Msps
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 0 20 40 60 80 0 20 40 60 80 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 2122 G07 2122 G08 2122 G09 2122fb For more information www.linear.com/LTC2122 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Converter Characteristics Analog Input Dynamic Accuracy Internal Reference Characteristics Power Requirements Digital Inputs And Outputs Digital Inputs And Outputs Timing characteristics Typical Performance Characteristics Pin Functions Block Diagram Timing Diagram SPI Timing Definitions ADC PERFORMANCE TERMS SERIAL INTERFACE TERMS Applications Information CONVERTER OPERATION INPUT DRIVE CIRCUITS GROUNDING AND BYPASSING HEAT TRANSFER Typical Applications Package Description Revision History Typical Application Related Parts