Datasheet RT2378-20 (Analog Devices) - 8
| Manufacturer | Analog Devices |
| Description | Radiation Tolerant 20-Bit, 1Msps, Low Power Plastic Package SAR ADC |
| Pages / Page | 10 / 8 — Typical. perForMance characTerisTics TA = 25°C, VDD = 2.5V, OVDD = 2.5V, … |
| File Format / Size | PDF / 181 Kb |
| Document Language | English |
Typical. perForMance characTerisTics TA = 25°C, VDD = 2.5V, OVDD = 2.5V, VCM = 2.5V,
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RT2378-20
Typical perForMance characTerisTics TA = 25°C, VDD = 2.5V, OVDD = 2.5V, VCM = 2.5V, REF = 5V, fSMPL = 1Msps, unless otherwise noted. SNR, SINAD vs Temperature, THD, Harmonics vs Temperature, fIN = 2kHz fIN = 2kHz INL vs Temperature
106 –120 2.0 1.5 105 SNR –125 1.0 MAX INL 104 SINAD 0.5 THD 103 –130 0 3RD MIN INL –0.5 SNR, SINAD (dBFS) 102 INL ERROR (ppm) HARMONICS, THD (dBFS) –135 2ND –1.0 101 –1.5 100 –140 –2.0 –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) RT237820 G10 RT237820 G11 RT237820 G12
Full-Scale Error vs Temperature Offset Error vs Temperature Supply Current vs Temperature
20 4 10 15 9 3 IVDD 8 10 2 7 5 –FS 1 6 0 0 Y CURRENT (mA) 5 –5 +FS 4 –1 3 OFFSET ERROR (ppm) FULL-SCALE ERROR (ppm) –10 –2 POWER SUPPL 2 –15 I –3 1 REF IOVDD –20 –4 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) RT237820 G13 RT237820 G14 RT237820 G15
Reference Current Shutdown Current vs Temperature CMRR vs Input Frequency vs Reference Voltage
45 100 1.0 IVDD + IOVDD + IREF 40 0.9 95 0.8 35 0.7 30 90 0.6 25 85 0.5 20 CMRR (dB) 0.4 15 80 0.3 10 REFERENCE CURRENT (mA) POWER-DOWN CURRENT (µA) 0.2 75 5 0.1 0 70 0 –50 –25 0 25 50 75 100 125 0 100 200 300 400 500 2.5 3.0 3.5 4.0 4.5 5.0 TEMPERATURE (°C) FREQUENCY (kHz) REFERENCE VOLTAGE (V) RT237820 G16 RT237820 G17 RT237820 G18 rt237820fa 8 For more information www.linear.com Document Outline Features Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Reference Input Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics
Typical perForMance characTerisTics TA = 25°C, VDD = 2.5V, OVDD = 2.5V, VCM = 2.5V, REF = 5V, fSMPL = 1Msps, unless otherwise noted. SNR, SINAD vs Temperature, THD, Harmonics vs Temperature, fIN = 2kHz fIN = 2kHz INL vs Temperature
106 –120 2.0 1.5 105 SNR –125 1.0 MAX INL 104 SINAD 0.5 THD 103 –130 0 3RD MIN INL –0.5 SNR, SINAD (dBFS) 102 INL ERROR (ppm) HARMONICS, THD (dBFS) –135 2ND –1.0 101 –1.5 100 –140 –2.0 –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) RT237820 G10 RT237820 G11 RT237820 G12
Full-Scale Error vs Temperature Offset Error vs Temperature Supply Current vs Temperature
20 4 10 15 9 3 IVDD 8 10 2 7 5 –FS 1 6 0 0 Y CURRENT (mA) 5 –5 +FS 4 –1 3 OFFSET ERROR (ppm) FULL-SCALE ERROR (ppm) –10 –2 POWER SUPPL 2 –15 I –3 1 REF IOVDD –20 –4 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) RT237820 G13 RT237820 G14 RT237820 G15
Reference Current Shutdown Current vs Temperature CMRR vs Input Frequency vs Reference Voltage
45 100 1.0 IVDD + IOVDD + IREF 40 0.9 95 0.8 35 0.7 30 90 0.6 25 85 0.5 20 CMRR (dB) 0.4 15 80 0.3 10 REFERENCE CURRENT (mA) POWER-DOWN CURRENT (µA) 0.2 75 5 0.1 0 70 0 –50 –25 0 25 50 75 100 125 0 100 200 300 400 500 2.5 3.0 3.5 4.0 4.5 5.0 TEMPERATURE (°C) FREQUENCY (kHz) REFERENCE VOLTAGE (V) RT237820 G16 RT237820 G17 RT237820 G18 rt237820fa 8 For more information www.linear.com Document Outline Features Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Reference Input Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics
