Datasheet LTC2385-18 (Analog Devices) - 6
| Hersteller | Analog Devices |
| Beschreibung | 18-Bit, 5Msps SAR ADC |
| Seiten / Seite | 22 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS. TA = 25°C, VDD = 5V, VDDL = 2.5V, … |
| Dateiformat / Größe | PDF / 1.1 Mb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS. TA = 25°C, VDD = 5V, VDDL = 2.5V, OVDD = 2.5V,
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LTC2385-18
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VDD = 5V, VDDL = 2.5V, OVDD = 2.5V, REFIN = 2.048V, fSMPL = 5Msps, unless otherwise noted. Integral Nonlinearity vs Integral Nonlinearity Differential Nonlinearity vs Output Code (LSB) vs Output Code (ppm) Output Code
2.0 6.0 1.0 1.5 4.5 0.8 0.6 1.0 3.0 0.4 0.5 1.5 0.2 0 0 0 –0.5 –1.5 –0.2 INL ERROR (LSB) INL ERROR (ppm) DNL ERROR (LSB) –0.4 –1.0 –3.0 –0.6 –1.5 –4.5 –0.8 –2.0 –6.0 –1.0 0 65536 131072 196608 262144 0 65536 131072 196608 262144 0 65536 131072 196608 262144 OUTPUT CODE OUTPUT CODE OUTPUT CODE 238518 G01a 238518 G01b 238518 G02
32k Point FFT fSMPL = 5Msps, 32k Point FFT fSMPL = 5Msps, DC Histogram fIN = 2kHz fIN = 100kHz
80000 0 0 σ = 1.4 SNR = 96.2dB SNR = 96.2dB 70000 –20 THD = –117dB –20 THD = –115dB SINAD = 96.1dB SINAD = 96.0dB 60000 –40 SFDR = 119dB –40 SFDR = 117dB 50000 –60 –60 40000 –80 –80 COUNT 30000 –100 –100 AMPLITUDE (dBFS) AMPLITUDE (dBFS) 20000 –120 –120 10000 –140 –140 0 –160 –160 N–6 N–4 N–2 N N+2 N+4 N+6 0 0.5 1 1.5 2 2.5 0 0.5 1 1.5 2 2.5 OUTPUT CODE FREQUENCY (MHz) FREQUENCY (MHz) 238518 G03 238518 G04 238518 G05
32k Point FFT fSMPL = 5Msps, THD vs Input Frequency fIN = 1MHz SNR, SINAD vs Input Frequency and Amplitude
0 98 –70 SNR = 95.6dB SNR –20 96 THD = –100dB –80 SINAD = 94.6dB 94 –1dBFS –40 SFDR = 101dB –3dBFS 92 –90 –6dBFS –60 SINAD 90 –10dBFS –100 –80 88 –110 –100 86 THD (dBFS) AMPLITUDE (dBFS) SNR, SINAD (dBFS) 84 –120 –120 82 –140 –130 80 –160 78 –140 0 0.5 1 1.5 2 2.5 0.01 0.1 1 10 0.01 0.1 1 10 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 238518 G06 238518 G08 238518 G09 238518f 6 For more information www.linear.com/LTC2385-18 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 Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VDD = 5V, VDDL = 2.5V, OVDD = 2.5V, REFIN = 2.048V, fSMPL = 5Msps, unless otherwise noted. Integral Nonlinearity vs Integral Nonlinearity Differential Nonlinearity vs Output Code (LSB) vs Output Code (ppm) Output Code
2.0 6.0 1.0 1.5 4.5 0.8 0.6 1.0 3.0 0.4 0.5 1.5 0.2 0 0 0 –0.5 –1.5 –0.2 INL ERROR (LSB) INL ERROR (ppm) DNL ERROR (LSB) –0.4 –1.0 –3.0 –0.6 –1.5 –4.5 –0.8 –2.0 –6.0 –1.0 0 65536 131072 196608 262144 0 65536 131072 196608 262144 0 65536 131072 196608 262144 OUTPUT CODE OUTPUT CODE OUTPUT CODE 238518 G01a 238518 G01b 238518 G02
32k Point FFT fSMPL = 5Msps, 32k Point FFT fSMPL = 5Msps, DC Histogram fIN = 2kHz fIN = 100kHz
80000 0 0 σ = 1.4 SNR = 96.2dB SNR = 96.2dB 70000 –20 THD = –117dB –20 THD = –115dB SINAD = 96.1dB SINAD = 96.0dB 60000 –40 SFDR = 119dB –40 SFDR = 117dB 50000 –60 –60 40000 –80 –80 COUNT 30000 –100 –100 AMPLITUDE (dBFS) AMPLITUDE (dBFS) 20000 –120 –120 10000 –140 –140 0 –160 –160 N–6 N–4 N–2 N N+2 N+4 N+6 0 0.5 1 1.5 2 2.5 0 0.5 1 1.5 2 2.5 OUTPUT CODE FREQUENCY (MHz) FREQUENCY (MHz) 238518 G03 238518 G04 238518 G05
32k Point FFT fSMPL = 5Msps, THD vs Input Frequency fIN = 1MHz SNR, SINAD vs Input Frequency and Amplitude
0 98 –70 SNR = 95.6dB SNR –20 96 THD = –100dB –80 SINAD = 94.6dB 94 –1dBFS –40 SFDR = 101dB –3dBFS 92 –90 –6dBFS –60 SINAD 90 –10dBFS –100 –80 88 –110 –100 86 THD (dBFS) AMPLITUDE (dBFS) SNR, SINAD (dBFS) 84 –120 –120 82 –140 –130 80 –160 78 –140 0 0.5 1 1.5 2 2.5 0.01 0.1 1 10 0.01 0.1 1 10 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 238518 G06 238518 G08 238518 G09 238518f 6 For more information www.linear.com/LTC2385-18 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 Package Description Typical Application Related Parts