Datasheet LTC2378-16 (Analog Devices) - 6

ManufacturerAnalog Devices
Description16-Bit, 1Msps, Low Power SAR ADC with 97dB SNR
Pages / Page26 / 6 — Typical perForMance characTerisTics. TA = 25°C, VDD = 2.5V, OVDD = 2.5V, …
File Format / SizePDF / 782 Kb
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Typical perForMance characTerisTics. TA = 25°C, VDD = 2.5V, OVDD = 2.5V, VCM = 2.5V,

Typical perForMance characTerisTics TA = 25°C, VDD = 2.5V, OVDD = 2.5V, VCM = 2.5V,

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LTC2378-16
Typical perForMance characTerisTics TA = 25°C, VDD = 2.5V, OVDD = 2.5V, VCM = 2.5V, REF = 5V, fSMPL = 1Msps, unless otherwise noted. Integral Nonlinearity Differential Nonlinearity vs Output Code vs Output Code DC Histogram
1.0 0.5 140000 0.8 0.4 σ = 0.15 120000 0.6 0.3 0.4 0.2 100000 0.2 0.1 80000 0.0 0.0 –0.2 –0.1 COUNTS 60000 INL ERROR (LSB) –0.4 DNL ERROR (LSB) –0.2 40000 –0.6 –0.3 20000 –0.8 –0.4 –1.0 –0.5 0 –32768 –16384 0 16384 32768 –32768 –16384 0 16384 32768 –2 –1 0 1 2 OUTPUT CODE OUTPUT CODE CODE 237816 G01 237816 G02 237816 G03
32k Point FFT fS = 1Msps, THD, Harmonics fIN = 2kHz SNR, SINAD vs Input Frequency vs Input Frequency
0 98.0 –80 SNR = 97.2dB THD –20 THD = –121.7dB 97.5 SNR 2ND SINAD = 97.1dB –90 3RD –40 97.0 SFDR = 128dB –60 96.5 –100 96.0 –80 SINAD 95.5 –110 –100 95.0 AMPLITUDE (dBFS) –120 SNR, SINAD (dBFS) –120 94.5 –140 HARMONICS, THD (dBFS) 94.0 –130 –160 93.5 –180 93.0 –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) 237816 G04 237816 G05 237816 G06
SNR, SINAD vs Input level, SNR, SINAD vs Reference THD, Harmonics vs Reference fIN = 2kHz Voltage, fIN = 2kHz Voltage, fIN = 2kHz
98.0 98.0 –100 97.5 –105 –110 97.5 97.0 SNR –115 SNR 96.5 –120 97.0 SINAD THD SINAD 96.0 –125 95.5 –130 3RD SNR, SINAD (dBFS) SNR, SINAD (dBFS) –135 96.5 95.0 HARMONICS, THD (dBFS) –140 2ND 94.5 –145 96.0 94.0 –150 –40 –30 –20 –10 0 2.5 3.0 3.5 4.0 4.5 5.0 2.5 3.0 3.5 4.0 4.5 5.0 INPUT LEVEL (dB) REFERENCE VOLTAGE (V) REFERENCE VOLTAGE (V) 237816 G07 237816 G08 237816 G09 237816fa 6 For more information www.linear.com/LTC2378-16 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Converter Characteristics Dynamic Accuracy Reference Input 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