Datasheet LTC2328-18 (Analog Devices) - 7

LTC2328-18
Typical perForMance characTerisTics TA = 25°C, VDD = 5V, OVDD = 2.5V, REFIN = 2.048V, fSMPL = 1Msps, unless otherwise noted. Integral Nonlinearity Differential Nonlinearity vs Output Code vs Output Code DC Histogram
3.0 0.5 3000 2.5 σ = 1.6 0.4 2.0 2500 0.3 1.5 1.0 0.2 2000 0.5 0.1 0 0.0 1500 –0.5 –0.1 COUNTS INL ERROR (LSB) –1.0 DNL ERROR (LSB) –0.2 1000 –1.5 –2.0 –0.3 500 –2.5 –0.4 –3.0 –0.5 0 –131072 –65536 0 65536 131072 –131072 –65536 0 65536 131072 –6 –5 –4 –3 –2 –1 0 1 2 3 4 5 6 7 OUTPUT CODE OUTPUT CODE CODE 232818 G01 232818 G02 232818 G03
32k Point FFT fS = 1Msps, THD, Harmonics fIN = 2kHz SNR, SINAD vs Input Frequency vs Input Frequency
0 100 –70 SNR = 95.3dB SNR –20 THD = –113dB –80 SINAD = 95.2dB –40 SFDR = –115dB 90 –90 –60 SINAD –100 –80 80 –100 –110 AMPLITUDE (dBFS) –120 SNR, SINAD (dBFS) 70 –120 THD, HARMONICS (dBFS) –140 –130 THD –160 2ND 3RD –180 60 –140 0 100 200 300 400 500 0 25 50 75 100 125 150 175 200 0 25 50 75 100 125 150 175 200 FREQUENCY (kHz) FREQUENCY (kHz) FREQUENCY (kHz) 232818 G06 232818 G04 232818 G05
SNR, SINAD vs Input Level, SNR, SINAD vs Temperature, THD, Harmonics vs Temperature, fIN = 2kHz fIN = 2kHz fIN = 2kHz
96.0 98 –105 97 –110 95.5 96 THD SNR SNR 3RD 95 –115 SINAD SINAD 2ND MAGNITUDE (dBFS) 95.0 SNR, SINAD (dBFS) 94 THD, HARMONICS (dBFS) –120 93 94.5 92 –125 –40 –30 –20 –10 0 –40 –25 –10 5 20 35 50 65 80 95 110 125 –40 –25 –10 5 20 35 50 65 80 95 110 125 INPUT LEVEL (dB) TEMPERATURE (°C) TEMPERATURE (°C) 232818 G09 232818 G07 232818 G08 232818fb For more information www.linear.com/LTC2328-18 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Internal Reference Characteristics Reference Buffer Characteristics Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagram Applications Information Board Layout Package Description Revision History Typical Application Related Parts