Datasheet LTC2341-18 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | Dual, 18-Bit, 666ksps/ch Differential SoftSpan ADC with Wide Input Common Mode Range |
| 页数 / 页 | 38 / 4 — DynaMic accuracy. The. denotes the specifications which apply over the … |
| 文件格式/大小 | PDF / 2.0 Mb |
| 文件语言 | 英语 |
DynaMic accuracy. The. denotes the specifications which apply over the full operating temperature range,
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LTC2341-18
DynaMic accuracy The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. AIN = –1dBFS. (Notes 8, 12) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
SINAD Signal-to-(Noise + SoftSpans 7 and 6: ±4.096V and ±4V Ranges, fIN = 2kHz l 91.0 95.0 dB Distortion) Ratio SoftSpans 5 and 4: 0V to 4.096V and 0V to 4V Ranges, fIN = 2kHz l 85.0 89.1 dB SoftSpans 3 and 2: ±2.048V and ±2V Ranges, fIN = 2kHz l 85.1 89.1 dB SoftSpan 1: 0V to 2.048V Range, fIN = 2kHz l 79.3 83.3 dB SNR Signal-to-Noise Ratio SoftSpans 7 and 6: ±4.096V and ±4V Ranges, fIN = 2kHz l 91.1 95.0 dB SoftSpans 5 and 4: 0V to 4.096V and 0V to 4V Ranges, fIN = 2kHz l 85.2 89.1 dB SoftSpans 3 and 2: ±2.048V and ±2V Ranges, fIN = 2kHz l 85.1 89.1 dB SoftSpan 1: 0V to 2.048V Range, fIN = 2kHz l 79.3 83.3 dB THD Total Harmonic Distortion SoftSpans 7 and 6: ±4.096V and ±4V Ranges, fIN = 2kHz l –114 –99 dB SoftSpans 5 and 4: 0V to 4.096V and 0V to 4V Ranges, fIN = 2kHz l –111 –95 dB SoftSpans 3 and 2: ±2.048V and ±2V Ranges, fIN = 2kHz l –110 –95 dB SoftSpan 1: 0V to 2.048V Range, fIN = 2kHz l –109 –95 dB SFDR Spurious Free Dynamic SoftSpans 7 and 6: ±4.096V and ±4V Ranges, fIN = 2kHz l 99 115 dB Range SoftSpans 5 and 4: 0V to 4.096V and 0V to 4V Ranges, fIN = 2kHz l 95 112 dB SoftSpans 3 and 2: ±2.048 and ±2V Ranges, fIN = 2kHz l 95 111 dB SoftSpan 1: 0V to 2.048V Range, fIN = 2kHz l 95 110 dB Channel-to-Channel One Channel Converting 3.6VP-P 200Hz Sine in ±2.048V Range, –119 dB Crosstalk Crosstalk to Other Channel –3dB Input Bandwidth 22 MHz Aperture Delay 1 ns Aperture Delay Matching 150 ps Aperture Jitter 3 psRMS Transient Response Full-Scale Step, 0.005% Settling 210 ns
inTernal reFerence characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 8) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VREFIN Internal Reference Output Voltage 2.043 2.048 2.053 V Internal Reference Temperature Coefficient (Note 13) l 5 20 ppm/°C Internal Reference Line Regulation VDD = 4.75V to 5.25V 0.1 mV/V Internal Reference Output Impedance 20 kΩ VREFIN REFIN Voltage Range REFIN Overdriven (Note 6) 1.25 2.2 V 234118f 4 For more information www.linear.com/LTC2341-18 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 ADC Timing Characteristics ADC Timing Characteristics Typical Performance Characteristics Pin Functions Configuration Tables Functional Block Diagram Timing Diagram Applications Information Board Layout Package Description Typical Application Related Parts
DynaMic accuracy The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. AIN = –1dBFS. (Notes 8, 12) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
SINAD Signal-to-(Noise + SoftSpans 7 and 6: ±4.096V and ±4V Ranges, fIN = 2kHz l 91.0 95.0 dB Distortion) Ratio SoftSpans 5 and 4: 0V to 4.096V and 0V to 4V Ranges, fIN = 2kHz l 85.0 89.1 dB SoftSpans 3 and 2: ±2.048V and ±2V Ranges, fIN = 2kHz l 85.1 89.1 dB SoftSpan 1: 0V to 2.048V Range, fIN = 2kHz l 79.3 83.3 dB SNR Signal-to-Noise Ratio SoftSpans 7 and 6: ±4.096V and ±4V Ranges, fIN = 2kHz l 91.1 95.0 dB SoftSpans 5 and 4: 0V to 4.096V and 0V to 4V Ranges, fIN = 2kHz l 85.2 89.1 dB SoftSpans 3 and 2: ±2.048V and ±2V Ranges, fIN = 2kHz l 85.1 89.1 dB SoftSpan 1: 0V to 2.048V Range, fIN = 2kHz l 79.3 83.3 dB THD Total Harmonic Distortion SoftSpans 7 and 6: ±4.096V and ±4V Ranges, fIN = 2kHz l –114 –99 dB SoftSpans 5 and 4: 0V to 4.096V and 0V to 4V Ranges, fIN = 2kHz l –111 –95 dB SoftSpans 3 and 2: ±2.048V and ±2V Ranges, fIN = 2kHz l –110 –95 dB SoftSpan 1: 0V to 2.048V Range, fIN = 2kHz l –109 –95 dB SFDR Spurious Free Dynamic SoftSpans 7 and 6: ±4.096V and ±4V Ranges, fIN = 2kHz l 99 115 dB Range SoftSpans 5 and 4: 0V to 4.096V and 0V to 4V Ranges, fIN = 2kHz l 95 112 dB SoftSpans 3 and 2: ±2.048 and ±2V Ranges, fIN = 2kHz l 95 111 dB SoftSpan 1: 0V to 2.048V Range, fIN = 2kHz l 95 110 dB Channel-to-Channel One Channel Converting 3.6VP-P 200Hz Sine in ±2.048V Range, –119 dB Crosstalk Crosstalk to Other Channel –3dB Input Bandwidth 22 MHz Aperture Delay 1 ns Aperture Delay Matching 150 ps Aperture Jitter 3 psRMS Transient Response Full-Scale Step, 0.005% Settling 210 ns
inTernal reFerence characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 8) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VREFIN Internal Reference Output Voltage 2.043 2.048 2.053 V Internal Reference Temperature Coefficient (Note 13) l 5 20 ppm/°C Internal Reference Line Regulation VDD = 4.75V to 5.25V 0.1 mV/V Internal Reference Output Impedance 20 kΩ VREFIN REFIN Voltage Range REFIN Overdriven (Note 6) 1.25 2.2 V 234118f 4 For more information www.linear.com/LTC2341-18 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 ADC Timing Characteristics ADC Timing Characteristics Typical Performance Characteristics Pin Functions Configuration Tables Functional Block Diagram Timing Diagram Applications Information Board Layout Package Description Typical Application Related Parts