Datasheet LTC2338-18 (Analog Devices) - 6
| Hersteller | Analog Devices |
| Beschreibung | 18-Bit, 1Msps, ±10.24V True Bipolar, Fully Differential Input ADC with 100dB SNR |
| Seiten / Seite | 26 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS. TA = 25°C, VDD = 5V, OVDD = 2.5V, … |
| Dateiformat / Größe | PDF / 1.8 Mb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS. TA = 25°C, VDD = 5V, OVDD = 2.5V, REFIN = 2.048V,
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LTC2338-18
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 5000 σ = 0.8 2.5 0.4 4500 2.0 0.3 4000 1.5 0.2 3500 1.0 0.1 3000 0.5 0 0.0 2500 –0.5 COUNTS –0.1 2000 INL ERROR (LSB) –1.0 DNL ERROR (LSB) –0.2 1500 –1.5 –0.3 1000 –2.0 –0.4 500 –2.5 –3.0 –0.5 0 –131072 –65536 0 65536 131072 –131072 –65536 0 65536 131072 –4 –3 –2 –1 0 1 2 3 4 OUTPUT CODE OUTPUT CODE CODE 233818 G03 233818 G01 233818 G02
32k Point FFT fS = 1Msps, THD, Harmonics fIN = 2kHz SNR, SINAD vs Input Frequency vs Input Frequency
0 110 –70 SNR = 100.3dB THD –20 THD = –117dB –80 2ND SINAD = 100.2dB SNR 3RD –40 100 SFDR = –119dB –90 –60 SINAD 90 –100 –80 –110 –100 80 –120 AMPLITUDE (dBFS) –120 SNR, SINAD (dBFS) –140 THD, HARMONICS (dBFS) –130 70 –160 –140 –180 60 –150 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) 233818 G04 233818 G05 233818 G06
SNR, SINAD vs Input Level, SNR, SINAD vs Temperature, THD, Harmonics vs Temperature, fIN = 2kHz fIN = 2kHz fIN = 2kHz
102.0 102.0 –105 101.5 –110 101.5 101.0 SNR –115 THD 100.5 3RD 101.0 100.0 –120 SNR SINAD 99.5 MAGNITUDE (dBFS) SINAD SNR, SINAD (dBFS) –125 2ND 100.5 99.0 THD, HARMONICS (dBFS) –130 98.5 100.0 98.0 –135 –40 –30 –20 –10 0 –55 –35 –15 5 25 45 65 85 105 125 –55 –35 –15 5 25 45 65 85 105 125 INPUT LEVEL (dB) TEMPERATURE (°C) TEMPERATURE (°C) 233818 G07 233818 G08 233818 G09 233818fa 6 For more information www.linear.com/LTC2338-18 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration 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
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 5000 σ = 0.8 2.5 0.4 4500 2.0 0.3 4000 1.5 0.2 3500 1.0 0.1 3000 0.5 0 0.0 2500 –0.5 COUNTS –0.1 2000 INL ERROR (LSB) –1.0 DNL ERROR (LSB) –0.2 1500 –1.5 –0.3 1000 –2.0 –0.4 500 –2.5 –3.0 –0.5 0 –131072 –65536 0 65536 131072 –131072 –65536 0 65536 131072 –4 –3 –2 –1 0 1 2 3 4 OUTPUT CODE OUTPUT CODE CODE 233818 G03 233818 G01 233818 G02
32k Point FFT fS = 1Msps, THD, Harmonics fIN = 2kHz SNR, SINAD vs Input Frequency vs Input Frequency
0 110 –70 SNR = 100.3dB THD –20 THD = –117dB –80 2ND SINAD = 100.2dB SNR 3RD –40 100 SFDR = –119dB –90 –60 SINAD 90 –100 –80 –110 –100 80 –120 AMPLITUDE (dBFS) –120 SNR, SINAD (dBFS) –140 THD, HARMONICS (dBFS) –130 70 –160 –140 –180 60 –150 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) 233818 G04 233818 G05 233818 G06
SNR, SINAD vs Input Level, SNR, SINAD vs Temperature, THD, Harmonics vs Temperature, fIN = 2kHz fIN = 2kHz fIN = 2kHz
102.0 102.0 –105 101.5 –110 101.5 101.0 SNR –115 THD 100.5 3RD 101.0 100.0 –120 SNR SINAD 99.5 MAGNITUDE (dBFS) SINAD SNR, SINAD (dBFS) –125 2ND 100.5 99.0 THD, HARMONICS (dBFS) –130 98.5 100.0 98.0 –135 –40 –30 –20 –10 0 –55 –35 –15 5 25 45 65 85 105 125 –55 –35 –15 5 25 45 65 85 105 125 INPUT LEVEL (dB) TEMPERATURE (°C) TEMPERATURE (°C) 233818 G07 233818 G08 233818 G09 233818fa 6 For more information www.linear.com/LTC2338-18 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration 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