Datasheet LTC2320-12 (Analog Devices) - 8

LTC2320-12
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VDD = 5V, OVDD = 2.5V, REFOUT1,2,3,4 = 4.096V, fSMPL = 1.5Msps, unless otherwise noted. Integral Nonlinearity Differential Nonlinearity vs Output Code vs Output Code DC Histogram
1.00 1.0 70000 0.75 0.50 0.5 52500 0.25 Right Click In Graph Area for Menu 0 0 Double Click In Graph Area for Data Setup 35000 COUNTS –0.25 INL ERROR (LSB) DNL ERROR (LSB) –0.50 –0.5 17500 –0.75 –1.00 –1.0 0 –4096 –2048 0 2048 4096 –4096 –2048 0 2048 4096 –2 –1 0 1 2 OUTPUT CODE OUTPUT CODE CODE 232012 G01 232012 G02 232012 G03
32k Point FFT, fSMPL = 1.5Msps, SNR, SINAD vs Input Frequency THD, Harmonics vs Input fIN = 500kHz (1kHz to 750kHz) Frequency (1kHz to 750kHz) SMPL IN
0 80.0 –80 SNR = 78.4dB THD = –90.9dB 79.5 –84 –20 SINAD = 78.2dB SFDR = 95.2dB 79.0 –88 –40 SNR THD 78.5 –92 78.0 –96 –60 SINAD 77.5 –100 –80 HD3 77.0 –104 AMPLITUDE (dBFS) HD2 –100 76.5 –108 SNR, SINAD LEVEL (dBFS) 76.0 –112 –120 THD, HARMONICS LEVEL (dBFS) 75.5 –116 –140 75.0 –120 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 232012 G04 232012 G05 232012 G06
THD, Harmonics vs Input Common SNR, SINAD vs Reference Voltage, 32k Point FFT, IMD, fSMPL = 1.5Msps, Mode Mode f + – IN f = 500kHz IN AIN = 490kHz, A IN IN = 510kHz IN
–80 80 0 fIN = 500kHz fIN = 500kHz THD = 87dB –84 SNR 78 VCM = 20kHz, 4VP-P –20 –88 SINAD THD 76 –92 –40 –96 74 –60 –100 72 HD2 –104 –80 70 HD3 –108 AMPLITUDE (dBFS) –100 68 SNR, SINAD LEVEL (dBFS) –112 THD, HARMONICS LEVEL (dBFS) –120 –116 66 –120 64 –140 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 INPUT COMMON MODE (V) VREFOUT(V) FREQUENCY (MHz) 232012 G07 232012 G08 232012 G09 Rev B 8 For more information www.analog.com Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Converter Characteristics Internal Reference Characteristics Digital Inputs And Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagram Applications Information Package Description Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Internal Reference Characteristics Digital Inputs And Digital Outputs Power Requirements ADC Timing Characteristics ADC Timing Characteristics ADC Timing Characteristics Typical Performance Characteristics Pin Functions CMOS data output option (CMOS/LVDS = low) LVDS data output option (CMOS/LVDS = high or FLOAT) Functional Block Diagram Timing Diagram Applications Information OVERVIEW CONVERTER OPERATION TRANSFER FUNCTION INPUT DRIVE CIRCUITS ADC REFERENCE DYNAMIC PERFORMANCE POWER CONSIDERATIONS TIMING AND CONTROL DIGITAL INTERFACE BOARD LAYOUT Package Description Revision History Typical Application Related Parts