Datasheet LTC2389-18 (Analog Devices) - 8
| Hersteller | Analog Devices |
| Beschreibung | 18-Bit, 2.5Msps SAR ADC with Pin-Configurable Analog Input Range and 99.8dB SNR |
| Seiten / Seite | 40 / 8 — Typical. perFormance characTerisTics TA = 25°C, VDD = 5V, OVDD = 2.5V, … |
| Dateiformat / Größe | PDF / 930 Kb |
| Dokumentensprache | Englisch |
Typical. perFormance characTerisTics TA = 25°C, VDD = 5V, OVDD = 2.5V, VREF = 4.096V
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LTC2389-18
Typical perFormance characTerisTics TA = 25°C, VDD = 5V, OVDD = 2.5V, VREF = 4.096V External Reference, Fully Differential Range (PD/FD = 0V), VCM = 2.048V, fSMPL = 2.5Msps, unless otherwise noted. SNR, SINAD vs Temperature, THD, Harmonics vs Temperature, fIN = 2kHz fIN = 2kHz INL/DNL vs Temperature
102 –110 2 101 –115 THD 1 MAX INL 100 SNR 3RD –120 MAX DNL 99 SINAD 0 MIN DNL –125 SNR, SINAD (dB) 98 2ND /DNL ERROR (LSB) MIN INL THD, HARMONICS (dB) INL –1 –130 97 96 –135 –2 –55 –35 –15 5 25 45 65 85 105 125 –55 –35 –15 5 25 45 65 85 105 125 –55 –35 –15 5 25 45 65 85 105 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 238918 G10 238918 G11 238918 G12
Offset Error vs Temperature Full-Scale Error vs Temperature Supply Current vs Temperature
2.0 30 35 IVDD 25 1.5 20 30 1.0 15 +FS 25 10 0.5 5 20 0 0 –5 15 –0.5 –FS –10 OFFSET ERROR (LSB) –1.0 10 FULL-SCALE ERROR (LSB) –15 SUPPLY CURRENT (mA) –20 –1.5 5 –25 IOVDD –2.0 –30 0 –55 –35 –15 5 25 45 65 85 105 125 –55 –35 –15 5 25 45 65 85 105 125 –55 –35 –15 5 25 45 65 85 105 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 238918 G13 238918 G14 238918 G15
Power-Down Current Supply Current vs Temperature vs Sampling Frequency CMRR vs Input Frequency
80 35 80 IVDD + IOVDD 70 30 75 60 25 70 50 20 IVDD 40 65 15 30 Y CURRENT (mA) CMRR (dB) 60 10 20 SUPPL POWER-DOWN CURRENT (µA) 55 10 5 IOVDD 0 0 50 –55 –35 –15 5 25 45 65 85 105 125 1 10 100 1000 10000 0 250 500 750 1000 1250 TEMPERATURE (°C) SAMPLING FREQUENCY (kHz) FREQUENCY (kHz) 238918 G16 238918 G17 238918 G18 238918f 8 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Analog Input Converter Characteristics Dynamic Accuracy Reference Characteristics Digital Inputs And Digital Outputs Power Requirements Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagrams Applications Information Package Description Typical Application Related Parts
Typical perFormance characTerisTics TA = 25°C, VDD = 5V, OVDD = 2.5V, VREF = 4.096V External Reference, Fully Differential Range (PD/FD = 0V), VCM = 2.048V, fSMPL = 2.5Msps, unless otherwise noted. SNR, SINAD vs Temperature, THD, Harmonics vs Temperature, fIN = 2kHz fIN = 2kHz INL/DNL vs Temperature
102 –110 2 101 –115 THD 1 MAX INL 100 SNR 3RD –120 MAX DNL 99 SINAD 0 MIN DNL –125 SNR, SINAD (dB) 98 2ND /DNL ERROR (LSB) MIN INL THD, HARMONICS (dB) INL –1 –130 97 96 –135 –2 –55 –35 –15 5 25 45 65 85 105 125 –55 –35 –15 5 25 45 65 85 105 125 –55 –35 –15 5 25 45 65 85 105 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 238918 G10 238918 G11 238918 G12
Offset Error vs Temperature Full-Scale Error vs Temperature Supply Current vs Temperature
2.0 30 35 IVDD 25 1.5 20 30 1.0 15 +FS 25 10 0.5 5 20 0 0 –5 15 –0.5 –FS –10 OFFSET ERROR (LSB) –1.0 10 FULL-SCALE ERROR (LSB) –15 SUPPLY CURRENT (mA) –20 –1.5 5 –25 IOVDD –2.0 –30 0 –55 –35 –15 5 25 45 65 85 105 125 –55 –35 –15 5 25 45 65 85 105 125 –55 –35 –15 5 25 45 65 85 105 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 238918 G13 238918 G14 238918 G15
Power-Down Current Supply Current vs Temperature vs Sampling Frequency CMRR vs Input Frequency
80 35 80 IVDD + IOVDD 70 30 75 60 25 70 50 20 IVDD 40 65 15 30 Y CURRENT (mA) CMRR (dB) 60 10 20 SUPPL POWER-DOWN CURRENT (µA) 55 10 5 IOVDD 0 0 50 –55 –35 –15 5 25 45 65 85 105 125 1 10 100 1000 10000 0 250 500 750 1000 1250 TEMPERATURE (°C) SAMPLING FREQUENCY (kHz) FREQUENCY (kHz) 238918 G16 238918 G17 238918 G18 238918f 8 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Analog Input Converter Characteristics Dynamic Accuracy Reference Characteristics Digital Inputs And Digital Outputs Power Requirements Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagrams Applications Information Package Description Typical Application Related Parts