Datasheet LTC2499 (Analog Devices) - 7
| Производитель | Analog Devices |
| Описание | 24-Bit 8-/16-Channel ΔΣ ADC with Easy Drive Input Current Cancellation and I2C Interface |
| Страниц / Страница | 34 / 7 — typical perForMance characteristics. RMS Noise. Long-Term ADC Readings. … |
| Формат / Размер файла | PDF / 1.1 Мб |
| Язык документа | английский |
typical perForMance characteristics. RMS Noise. Long-Term ADC Readings. vs Input Differential Voltage. RMS Noise vs VIN(CM)
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LTC2499
typical perForMance characteristics RMS Noise Long-Term ADC Readings vs Input Differential Voltage RMS Noise vs VIN(CM)
5 1.0 1.0 VCC = 5V TA = 25°C VCC = 5V VCC = 5V 4 VREF = 5V RMS NOISE = 0.60µV VREF = 5V VREF = 5V V 0.9 0.9 V 3 IN = 0V VIN(CM) = 2.5V IN = 0V VIN(CM) = 2.5V TA = 25°C TA = 25°C 2 f fO = GND 0.8 O = GND 0.8 1 0 0.7 0.7 –1 ADC READING (µV) RMS NOISE (µV) RMS NOISE (µV) –2 0.6 0.6 –3 0.5 0.5 –4 –5 0.4 0.4 0 10 20 30 40 50 60 –2.5 –2 –1.5 –1 –0.5 0 0.5 1 1.5 2 2.5 –1 0 1 2 3 4 5 6 TIME (HOURS) INPUT DIFFERENTIAL VOLTAGE (V) VIN(CM) (V) 2499 G09 2499 G10 2499 G11
RMS Noise vs Temperature (TA) RMS Noise vs VCC RMS Noise vs VREF
1.0 1.0 1.0 VCC = 5V VREF = 2.5V VCC = 5V VREF = 5V VIN = 0V VIN = 0V 0.9 VIN = 0V 0.9 VIN(CM) = GND 0.9 VIN(CM) = GND VIN(CM) = GND TA = 25°C TA = 25°C f f f 0.8 O = GND O = GND 0.8 O = GND 0.8 0.7 0.7 0.7 RMS NOISE (µV) 0.6 RMS NOISE (µV) 0.6 RMS NOISE (µV) 0.6 0.5 0.5 0.5 0.4 0.4 0.4 –45 –30 –15 0 15 30 45 60 75 90 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5 0 1 2 3 4 5 TEMPERATURE (°C) VCC (V) VREF (V) 2499 G12 2499 G13 2499 G14
Offset Error vs VIN(CM) Offset Error vs Temperature
0.3 0.3 VCC = 5V VCC = 5V VREF = 5V VREF = 5V ) 0.2 VIN = 0V ) 0.2 VIN = 0V REF TA = 25°C VIN(CM) = GND f REF 0.1 O = GND f 0.1 O = GND 0 0 –0.1 –0.1 OFFSET ERROR (ppm of V –0.2 OFFSET ERROR (ppm of V –0.2 –0.3 –0.3 –1 0 1 2 3 4 5 6 –45 –30 –15 0 15 30 45 60 75 90 VIN(CM) (V) TEMPERATURE (°C) 2499 G15 2499 G16 2499fe For more information www.linear.com/LTC2499 7 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics (normal speed) Electrical Characteristics (2x Speed) Converter Characteristics Analog Input and Reference I2C Inputs And Digital Outputs Power Requirements Digital Inputs And Digital Outputs I2C Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Applications Information Package Description Revision History Related Parts
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