Datasheet LTC2373-18 (Analog Devices) - 9
| 制造商 | Analog Devices |
| 描述 | 18-Bit, 1Msps, 8-Channel SAR ADC with 100dB SNR |
| 页数 / 页 | 50 / 9 — Typical. perForMance characTerisTics TA = 25°C, VDD = 5V, OVDD = 2.5V, … |
| 文件格式/大小 | PDF / 2.0 Mb |
| 文件语言 | 英语 |
Typical. perForMance characTerisTics TA = 25°C, VDD = 5V, OVDD = 2.5V, REFIN = 2.048V,
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LTC2373-18
Typical perForMance characTerisTics TA = 25°C, VDD = 5V, OVDD = 2.5V, REFIN = 2.048V, Fully Differential Range, VCM = 2.048V, fSMPL = 1Msps, unless otherwise noted. THD, Harmonics vs Input SNR, SINAD vs Input Frequency Frequency CMRR vs Input Frequency
105 –70 80 100 SNR –80 75 95 –90 70 90 SINAD –100 65 85 CMRR (dB) SNR, SINAD (dBFS) –110 60 80 THD, HARMONICS (dBFS) 75 –120 THD 55 2ND 3RD 70 –130 50 0 25 50 75 100 125 150 175 200 0 25 50 75 100 125 150 175 200 0 100 200 300 400 500 FREQUENCY (kHz) FREQUENCY (kHz) FREQUENCY (kHz) 237318 G10 237318 G11 237318 G12
SNR, SINAD vs Temperature, THD, Harmonics vs Temperature, PSRR vs Frequency fIN = 1kHz fIN = 1kHz
95 102 –110 90 THD 101 85 SNR –115 80 100 3RD 75 SINAD 70 99 –120 PSRR (dB) 65 2ND SNR, SINAD (dBFS) 98 60 THD, HARMONICS (dBFS) –125 55 97 50 45 96 –130 1 10 100 1k –40 –25 –10 5 20 35 50 65 80 95 110 125 –40 –25 –10 5 20 35 50 65 80 95 110 125 FREQUENCY (kHz) TEMPERATURE (°C) TEMPERATURE (°C) 237318 G13 237318 G14 237318 G15
Full-Scale Error vs Temperature INL vs Temperature REFBUF = 4.096V Zero-Scale Error vs Temperature
2 4 2.0 3 1.5 –FS 1 2 1.0 MAX INL 1 0.5 +FS 0 0 0 MIN INL –1 –0.5 INL ERROR (LSB) –1 OFFSET ERROR (LSB) FULL-SCALE ERROR (LSB) –2 –1.0 –3 –1.5 –2 –4 –2.0 –40 –25 –10 5 20 35 50 65 80 95 110 125 –40 –25 –10 5 20 35 50 65 80 95 110 125 –40 –25 –10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 237318 G16 237318 G17 237318 G18 237318f For more information www.linear.com/LTC2373-18 9 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information 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
Typical perForMance characTerisTics TA = 25°C, VDD = 5V, OVDD = 2.5V, REFIN = 2.048V, Fully Differential Range, VCM = 2.048V, fSMPL = 1Msps, unless otherwise noted. THD, Harmonics vs Input SNR, SINAD vs Input Frequency Frequency CMRR vs Input Frequency
105 –70 80 100 SNR –80 75 95 –90 70 90 SINAD –100 65 85 CMRR (dB) SNR, SINAD (dBFS) –110 60 80 THD, HARMONICS (dBFS) 75 –120 THD 55 2ND 3RD 70 –130 50 0 25 50 75 100 125 150 175 200 0 25 50 75 100 125 150 175 200 0 100 200 300 400 500 FREQUENCY (kHz) FREQUENCY (kHz) FREQUENCY (kHz) 237318 G10 237318 G11 237318 G12
SNR, SINAD vs Temperature, THD, Harmonics vs Temperature, PSRR vs Frequency fIN = 1kHz fIN = 1kHz
95 102 –110 90 THD 101 85 SNR –115 80 100 3RD 75 SINAD 70 99 –120 PSRR (dB) 65 2ND SNR, SINAD (dBFS) 98 60 THD, HARMONICS (dBFS) –125 55 97 50 45 96 –130 1 10 100 1k –40 –25 –10 5 20 35 50 65 80 95 110 125 –40 –25 –10 5 20 35 50 65 80 95 110 125 FREQUENCY (kHz) TEMPERATURE (°C) TEMPERATURE (°C) 237318 G13 237318 G14 237318 G15
Full-Scale Error vs Temperature INL vs Temperature REFBUF = 4.096V Zero-Scale Error vs Temperature
2 4 2.0 3 1.5 –FS 1 2 1.0 MAX INL 1 0.5 +FS 0 0 0 MIN INL –1 –0.5 INL ERROR (LSB) –1 OFFSET ERROR (LSB) FULL-SCALE ERROR (LSB) –2 –1.0 –3 –1.5 –2 –4 –2.0 –40 –25 –10 5 20 35 50 65 80 95 110 125 –40 –25 –10 5 20 35 50 65 80 95 110 125 –40 –25 –10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 237318 G16 237318 G17 237318 G18 237318f For more information www.linear.com/LTC2373-18 9 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information 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