Datasheet LTC2495 (Analog Devices) - 6
| 制造商 | Analog Devices |
| 描述 | 16-Bit 8-/16-Channel ΔΣ ADC with PGA, Easy Drive and I2C Interface |
| 页数 / 页 | 34 / 6 — typical perForMance characteristics. Integral Nonlinearity. (VCC = 5V, … |
| 文件格式/大小 | PDF / 578 Kb |
| 文件语言 | 英语 |
typical perForMance characteristics. Integral Nonlinearity. (VCC = 5V, VREF = 5V). (VCC = 5V, VREF = 2.5V)
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LTC2495
typical perForMance characteristics Integral Nonlinearity Integral Nonlinearity Integral Nonlinearity (VCC = 5V, VREF = 5V) (VCC = 5V, VREF = 2.5V) (VCC = 2.7V, VREF = 2.5V)
3 3 3 VCC = 5V VCC = 5V VCC = 2.7V VREF = 5V VREF = 2.5V VREF = 2.5V 2 VIN(CM) = 2.5V 2 VIN(CM) = 1.25V 2 VIN(CM) = 1.25V fO = GND fO = GND fO = GND ) 1 –45°C ) 1 1 REF 25°C REF –45°C, 25°C, 85°C REF –45°C, 25°C, 85°C 0 0 0 85°C INL (ppm of V –1 INL (ppm of V –1 INL (ppm of V –1 –2 –2 –2 –3 –3 –3 –2.5 –2 –1.5 –1 –0.5 0 0.5 1 1.5 2 2.5 –1.25 –0.75 –0.25 0.25 0.75 1.25 –1.25 –0.75 –0.25 0.25 0.75 1.25 INPUT VOLTAGE (V) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 2495 G03 2495 G01 2495 G02
Total Unadjusted Error Total Unadjusted Error Total Unadjusted Error (VCC = 5V, VREF = 5V) (VCC = 5V, VREF = 2.5V) (VCC = 2.7V, VREF = 2.5V)
12 12 12 VCC = 5V VCC = 5V VCC = 2.7V VREF = 5V VREF = 2.5V 85°C VREF = 2.5V 8 VIN(CM) = 2.5V 8 VIN(CM) = 1.25V 8 VIN(CM) = 1.25V fO = GND 85°C fO = GND 25°C fO = GND 85°C ) 25°C ) 25°C 4 4 4 REF REF REF –45°C 0 –45°C 0 –45°C 0 TUE (ppm of V –4 TUE (ppm of V –4 TUE (ppm of V –4 –8 –8 –8 –12 –12 –12 –2.5 –2 –1.5 –1 –0.5 0 0.5 1 1.5 2 2.5 –1.25 –0.75 –0.25 0.25 0.75 1.25 –1.25 –0.75 –0.25 0.25 0.75 1.25 INPUT VOLTAGE (V) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 2495 G04 2495 G05 2495 G06
Noise Histogram (6.8sps) Noise Histogram (7.5sps)
14 14 10,000 CONSECUTIVE 10,000 CONSECUTIVE READINGS READINGS 12 RMS = 0.59µV V 12 CC = 5V RMS = 0.60µV VCC = 2.7V AVERAGE = –0.19µV VREF = 5V AVERAGE = –0.69µV VREF = 2.5V 10 VIN = 0V 10 VIN = 0V TA = 25°C TA = 25°C 8 GAIN = 256 8 GAIN = 256 6 6 4 4 NUMBER OF READINGS (%) NUMBER OF READINGS (%) 2 2 0 0 –3 –2.4 –1.8 –1.2 –0.6 0 0.6 1.2 1.8 –3 –2.4 –1.8 –1.2 –0.6 0 0.6 1.2 1.8 OUTPUT READING (µV) OUTPUT READING (µV) 2495 G07 2495 G08 2495fe 6 For more information www.linear.com/LTC2495 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
typical perForMance characteristics Integral Nonlinearity Integral Nonlinearity Integral Nonlinearity (VCC = 5V, VREF = 5V) (VCC = 5V, VREF = 2.5V) (VCC = 2.7V, VREF = 2.5V)
3 3 3 VCC = 5V VCC = 5V VCC = 2.7V VREF = 5V VREF = 2.5V VREF = 2.5V 2 VIN(CM) = 2.5V 2 VIN(CM) = 1.25V 2 VIN(CM) = 1.25V fO = GND fO = GND fO = GND ) 1 –45°C ) 1 1 REF 25°C REF –45°C, 25°C, 85°C REF –45°C, 25°C, 85°C 0 0 0 85°C INL (ppm of V –1 INL (ppm of V –1 INL (ppm of V –1 –2 –2 –2 –3 –3 –3 –2.5 –2 –1.5 –1 –0.5 0 0.5 1 1.5 2 2.5 –1.25 –0.75 –0.25 0.25 0.75 1.25 –1.25 –0.75 –0.25 0.25 0.75 1.25 INPUT VOLTAGE (V) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 2495 G03 2495 G01 2495 G02
Total Unadjusted Error Total Unadjusted Error Total Unadjusted Error (VCC = 5V, VREF = 5V) (VCC = 5V, VREF = 2.5V) (VCC = 2.7V, VREF = 2.5V)
12 12 12 VCC = 5V VCC = 5V VCC = 2.7V VREF = 5V VREF = 2.5V 85°C VREF = 2.5V 8 VIN(CM) = 2.5V 8 VIN(CM) = 1.25V 8 VIN(CM) = 1.25V fO = GND 85°C fO = GND 25°C fO = GND 85°C ) 25°C ) 25°C 4 4 4 REF REF REF –45°C 0 –45°C 0 –45°C 0 TUE (ppm of V –4 TUE (ppm of V –4 TUE (ppm of V –4 –8 –8 –8 –12 –12 –12 –2.5 –2 –1.5 –1 –0.5 0 0.5 1 1.5 2 2.5 –1.25 –0.75 –0.25 0.25 0.75 1.25 –1.25 –0.75 –0.25 0.25 0.75 1.25 INPUT VOLTAGE (V) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 2495 G04 2495 G05 2495 G06
Noise Histogram (6.8sps) Noise Histogram (7.5sps)
14 14 10,000 CONSECUTIVE 10,000 CONSECUTIVE READINGS READINGS 12 RMS = 0.59µV V 12 CC = 5V RMS = 0.60µV VCC = 2.7V AVERAGE = –0.19µV VREF = 5V AVERAGE = –0.69µV VREF = 2.5V 10 VIN = 0V 10 VIN = 0V TA = 25°C TA = 25°C 8 GAIN = 256 8 GAIN = 256 6 6 4 4 NUMBER OF READINGS (%) NUMBER OF READINGS (%) 2 2 0 0 –3 –2.4 –1.8 –1.2 –0.6 0 0.6 1.2 1.8 –3 –2.4 –1.8 –1.2 –0.6 0 0.6 1.2 1.8 OUTPUT READING (µV) OUTPUT READING (µV) 2495 G07 2495 G08 2495fe 6 For more information www.linear.com/LTC2495 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