Datasheet LTC2157-14, LTC2156-14, LTC2155-14 (Analog Devices) - 10

LTC2157-14/ LTC2156-14/LTC2155-14
TYPICAL PERFORMANCE CHARACTERISTICS LTC2156-14: I LTC2156-14: I VDD vs Sample Rate, OVDD vs Sample Rate, 15MHz Sine Wave Input, –1dBFS 15MHz Sine Wave Input, –1dBFS LTC2156-14: Frequency Response
80 –0.5 280 LVDS CURRENT –1.0 3.5mA 70 –1.5 –2.0 260 –2.5 60 (mA) –3.0 (mA) 240 VDD –3.5 I VDD IO 50 –4.0 LVDS CURRENT AMPLITUDE (dBFS) 220 1.75mA –4.5 40 –5.0 –5.5 200 30 –6.0 0 50 100 150 200 250 0 50 100 150 200 250 100 1000 SAMPLE RATE (Msps) SAMPLE RATE (Msps) INPUT FREQUENCY (MHz) 21576514 G32 21576514 G33 21576514 G34
LTC2155-14: Integral Nonlinearity LTC2155-14: Differential LTC2155-14: 32K Point FFT, (INL) Nonlinearity (DNL) fIN = 15MHz, –1dBFS, 170Msps
2.0 0.5 0 1.5 –20 1.0 0.25 –40 0.5 0 0 –60 –0.5 INL ERROR (LSB) AMPLITUDE (dBFS) –80 –0.25 DNL ERROR (LSB) –1.0 –100 –1.5 –2.0 –0.5 –120 0 4096 8192 12288 16383 0 4096 8192 12288 16383 0 10 20 30 40 50 60 70 80 OUTPUT CODE OUTPUT CODE FREQUENCY (MHz) 21576514 G37 21576514 G35 21576514 G36
LTC2155-14: 32K Point FFT, LTC2155-14: 32K Point FFT, LTC2155-14: 32K Point FFT, fIN = 70MHz, –1dBFS, 170Msps fIN = 121MHz, –1dBFS, 170Msps fIN = 169MHz, –1dBFS, 170Msps
0 0 0 –20 –20 –20 –40 –40 –40 –60 –60 –60 AMPLITUDE (dBFS) –80 AMPLITUDE (dBFS) –80 AMPLITUDE (dBFS) –80 –100 –100 –100 –120 –120 –120 0 10 20 30 40 50 60 70 80 0 10 20 30 40 50 60 70 80 0 10 20 30 40 50 60 70 80 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 21576514 G38 21576514 G39 21576514 G40 21576514fb 10 For more information www.linear.com/LTC2157-14 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Converter Characteristics Analog Input Dynamic Accuracy Internal Reference Characteristics Power Requirements Digital Inputs And Outputs Timing Characteristics Timing Diagrams Typical Performance Characteristics Pin Functions Functional Block Diagram Applications Information Package Description Related Parts