Datasheet LTC2410 (Analog Devices) - 7
| Manufacturer | Analog Devices |
| Description | 24-Bit No Latency ∆Σ™ ADC with Differential Input and Differential Reference |
| Pages / Page | 50 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS. Noise Histogram (Output Rate =. … |
| File Format / Size | PDF / 804 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Noise Histogram (Output Rate =. 22.5Hz, VCC = 5V, VREF = 2.5V)
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LTC2410
TYPICAL PERFORMANCE CHARACTERISTICS Noise Histogram (Output Rate = Noise Histogram (Output Rate = Noise Histogram (Output Rate = 22.5Hz, VCC = 5V, VREF = 2.5V) 7.5Hz, VCC = 2.7V, VREF = 2.5V) 22.5Hz, VCC = 2.7V, VREF = 2.5V)
12 12 12 10,000 CONSECUTIVE GAUSSIAN 10,000 CONSECUTIVE GAUSSIAN 10,000 CONSECUTIVE GAUSSIAN READINGS DISTRIBUTION READINGS DISTRIBUTION READINGS DISTRIBUTION 10 VCC = 5V m = 0.014ppm 10 VCC = 2.7V m = 0.079ppm 10 VCC = 2.7V m = 0.177ppm VREF = 2.5V σ = 0.292ppm VREF = 2.5V σ = 0.298ppm VREF = 2.5V σ = 0.297ppm VIN = 0V VIN = 0V VIN = 0V 8 REF+ = 2.5V 8 REF+ = 2.5V 8 REF+ = 2.5V REF– = GND REF– = GND REF– = GND 6 IN+ = 1.25V IN+ = 1.25V IN+ = 1.25V IN– = 1.25V 6 IN– = 1.25V 6 IN– = 1.25V FO = 460800Hz FO = GND FO = 460800Hz 4 TA = 25°C 4 TA = 25°C 4 TA = 25°C NUMBER OF READINGS (%) NUMBER OF READINGS (%) NUMBER OF READINGS (%) 2 2 2 0 0 0 –1.6 –1.2 –0.8 –0.4 0 0.4 0.8 1.2 1.6 –1.6 –1.2 –0.8 –0.4 0 0.4 0.8 1.2 1.6 –1.6 –1.2 –0.8 –0.4 0 0.4 0.8 1.2 1.6 OUTPUT CODE (ppm OF VREF) OUTPUT CODE (ppm OF VREF) OUTPUT CODE (ppm OF VREF) 2410 G11 2410 G13 2410 G14
Long-Term Noise Histogram (Time = 60 Hrs, VCC = 5V, Consectutive ADC Readings vs RMS Noise vs Input Differential VREF = 5V) Time Voltage
12 1.0 0.5 GAUSSIAN DISTRIBUTION m = 0.101837ppm 0.8 VCC = 5V V 10 σ = 0.154515ppm ) REF = 5V 0.6 ) 0.4 REF+ = 5V REF REF– = GND 0.4 REF 8 ADC CONSECUTIVE VINCM = 2.5V READINGS 0.2 0.3 FO = GND VCC = 5V TA = 25°C 6 VREF = 5V 0 VIN = 0V –0.2 0.2 REF+ = 5V 4 REF– = GND –0.4 IN+ = 2.5V NUMBER OF READINGS (%) IN– = 2.5V ADC READING (ppm OF V V T IN+ = 2.5V –0.6 CC = 5V A = 25°C RMS NOISE (ppm OF V 2 V 0.1 REF = 5V REF + = 5V IN– = 2.5V FO = GND –0.8 VIN = 0V REF– = GND TA = 25°C FO = GND 0 –1.0 0 –0.8 –0.6 –0.4 –0.2 0 0.2 0.4 0.6 0.8 0 5 10 15 20 25 30 35 40 45 50 55 60 –2.5 –2 –1.5 –1 –0.5 0 0.5 1 1.5 2 2.5 OUTPUT CODE (ppm OF VREF) TIME (HOURS) INPUT DIFFERENTIAL VOLTAGE (V) 2410 G16 2410 G17 2410 G18
RMS Noise vs VINCM RMS Noise vs Temperature (TA) RMS Noise vs VCC
850 850 850 V REF+ = 2.5V CC = 5V 825 825 REF+ = 5V 825 REF– = GND REF– = GND VREF = 2.5V IN+ = GND 800 800 IN+ = 2.5V 800 IN– = 2.5V IN– = GND F 775 775 VIN = 0V 775 O = GND V T CC = 5V FO = GND A = 25°C 750 REF+ = 5V 750 750 REF– = GND VREF = 5V RMS NOISE (nV) 725 725 725 IN+ = VINCM RMS NOISE (nV) RMS NOISE (nV) 700 IN– = VINCM 700 700 VIN = 0V 675 FO = GND T 675 675 A = 25°C 650 650 650 –0.5 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 –50 –25 0 25 50 75 100 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5 VINCM (V) TEMPERATURE (°C) VCC (V) 2410 G19 2410 G20 2410 G21 2410fa For more information www.linear.com/LTC2410 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Electrical Characteristics Converter Characteristics Analog Input and Reference Digital Inputs and Digital Outputs Power Requirements Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Test Circuit Applications Information Typical Applications Package Description PCB Layout and Film Revision History PCB Layout and Film Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS Noise Histogram (Output Rate = Noise Histogram (Output Rate = Noise Histogram (Output Rate = 22.5Hz, VCC = 5V, VREF = 2.5V) 7.5Hz, VCC = 2.7V, VREF = 2.5V) 22.5Hz, VCC = 2.7V, VREF = 2.5V)
12 12 12 10,000 CONSECUTIVE GAUSSIAN 10,000 CONSECUTIVE GAUSSIAN 10,000 CONSECUTIVE GAUSSIAN READINGS DISTRIBUTION READINGS DISTRIBUTION READINGS DISTRIBUTION 10 VCC = 5V m = 0.014ppm 10 VCC = 2.7V m = 0.079ppm 10 VCC = 2.7V m = 0.177ppm VREF = 2.5V σ = 0.292ppm VREF = 2.5V σ = 0.298ppm VREF = 2.5V σ = 0.297ppm VIN = 0V VIN = 0V VIN = 0V 8 REF+ = 2.5V 8 REF+ = 2.5V 8 REF+ = 2.5V REF– = GND REF– = GND REF– = GND 6 IN+ = 1.25V IN+ = 1.25V IN+ = 1.25V IN– = 1.25V 6 IN– = 1.25V 6 IN– = 1.25V FO = 460800Hz FO = GND FO = 460800Hz 4 TA = 25°C 4 TA = 25°C 4 TA = 25°C NUMBER OF READINGS (%) NUMBER OF READINGS (%) NUMBER OF READINGS (%) 2 2 2 0 0 0 –1.6 –1.2 –0.8 –0.4 0 0.4 0.8 1.2 1.6 –1.6 –1.2 –0.8 –0.4 0 0.4 0.8 1.2 1.6 –1.6 –1.2 –0.8 –0.4 0 0.4 0.8 1.2 1.6 OUTPUT CODE (ppm OF VREF) OUTPUT CODE (ppm OF VREF) OUTPUT CODE (ppm OF VREF) 2410 G11 2410 G13 2410 G14
Long-Term Noise Histogram (Time = 60 Hrs, VCC = 5V, Consectutive ADC Readings vs RMS Noise vs Input Differential VREF = 5V) Time Voltage
12 1.0 0.5 GAUSSIAN DISTRIBUTION m = 0.101837ppm 0.8 VCC = 5V V 10 σ = 0.154515ppm ) REF = 5V 0.6 ) 0.4 REF+ = 5V REF REF– = GND 0.4 REF 8 ADC CONSECUTIVE VINCM = 2.5V READINGS 0.2 0.3 FO = GND VCC = 5V TA = 25°C 6 VREF = 5V 0 VIN = 0V –0.2 0.2 REF+ = 5V 4 REF– = GND –0.4 IN+ = 2.5V NUMBER OF READINGS (%) IN– = 2.5V ADC READING (ppm OF V V T IN+ = 2.5V –0.6 CC = 5V A = 25°C RMS NOISE (ppm OF V 2 V 0.1 REF = 5V REF + = 5V IN– = 2.5V FO = GND –0.8 VIN = 0V REF– = GND TA = 25°C FO = GND 0 –1.0 0 –0.8 –0.6 –0.4 –0.2 0 0.2 0.4 0.6 0.8 0 5 10 15 20 25 30 35 40 45 50 55 60 –2.5 –2 –1.5 –1 –0.5 0 0.5 1 1.5 2 2.5 OUTPUT CODE (ppm OF VREF) TIME (HOURS) INPUT DIFFERENTIAL VOLTAGE (V) 2410 G16 2410 G17 2410 G18
RMS Noise vs VINCM RMS Noise vs Temperature (TA) RMS Noise vs VCC
850 850 850 V REF+ = 2.5V CC = 5V 825 825 REF+ = 5V 825 REF– = GND REF– = GND VREF = 2.5V IN+ = GND 800 800 IN+ = 2.5V 800 IN– = 2.5V IN– = GND F 775 775 VIN = 0V 775 O = GND V T CC = 5V FO = GND A = 25°C 750 REF+ = 5V 750 750 REF– = GND VREF = 5V RMS NOISE (nV) 725 725 725 IN+ = VINCM RMS NOISE (nV) RMS NOISE (nV) 700 IN– = VINCM 700 700 VIN = 0V 675 FO = GND T 675 675 A = 25°C 650 650 650 –0.5 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 –50 –25 0 25 50 75 100 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5 VINCM (V) TEMPERATURE (°C) VCC (V) 2410 G19 2410 G20 2410 G21 2410fa For more information www.linear.com/LTC2410 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Electrical Characteristics Converter Characteristics Analog Input and Reference Digital Inputs and Digital Outputs Power Requirements Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Test Circuit Applications Information Typical Applications Package Description PCB Layout and Film Revision History PCB Layout and Film Related Parts
