Datasheet LTC2493 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | 24-Bit 2-/4-Channel ∆Σ ADC with Easy Drive Input Current Cancellation and I2C Interface |
| 页数 / 页 | 32 / 7 — Typical perForMance characTerisTics. RMS Noise. vs Input Differential … |
| 文件格式/大小 | PDF / 552 Kb |
| 文件语言 | 英语 |
Typical perForMance characTerisTics. RMS Noise. vs Input Differential Voltage. RMS Noise vs VIN(CM)
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LTC2493
Typical perForMance characTerisTics RMS Noise vs Input Differential Voltage RMS Noise vs VIN(CM) RMS Noise vs Temperature (TA)
1.0 1.0 1.0 VCC = 5V VCC = 5V VCC = 5V VREF = 5V VREF = 5V VREF = 5V 0.9 VIN(CM) = 2.5V 0.9 VIN = 0V 0.9 VIN = 0V TA = 25°C TA = 25°C VIN(CM) = GND f fO = GND fO = GND 0.8 O = GND 0.8 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 –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 –45 –30 –15 0 15 30 45 60 75 90 INPUT DIFFERENTIAL VOLTAGE (V) VIN(CM) (V) TEMPERATURE (°C) 2493 G10 2493 G11 2493 G12
RMS Noise vs VCC RMS Noise vs VREF Offset Error vs VIN(CM)
1.0 1.0 0.3 VREF = 2.5V VCC = 5V VCC = 5V VIN = 0V VIN = 0V VREF = 5V 0.9 VIN(CM) = GND 0.9 VIN(CM) = GND ) 0.2 VIN = 0V TA = 25°C TA = 25°C REF TA = 25°C f fO = GND f 0.8 O = GND 0.8 0.1 O = GND 0.7 0.7 0 RMS NOISE (µV) 0.6 RMS NOISE (µV) 0.6 –0.1 OFFSET ERROR (ppm of V 0.5 0.5 –0.2 0.4 0.4 –0.3 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5 0 1 2 3 4 5 –1 0 1 2 3 4 5 6 VCC (V) VREF (V) VIN(CM) (V) 2493 G13 2493 G14 2493 G15
Offset Error vs Temperature Offset Error vs VCC Offset Error vs VREF
0.3 0.3 0.3 VCC = 5V REF+ = 2.5V VCC = 5V VREF = 5V REF– = GND REF– = GND ) 0.2 VIN = 0V ) 0.2 VIN = 0V ) 0.2 VIN = 0V V REF VIN(CM) = GND REF VIN(CM) = GND REF IN(CM) = GND f T T 0.1 O = GND 0.1 A = 25°C A = 25°C f 0.1 O = GND fO = GND 0 0 0 –0.1 –0.1 –0.1 OFFSET ERROR (ppm of V OFFSET ERROR (ppm of V OFFSET ERROR (ppm of V –0.2 –0.2 –0.2 –0.3 –0.3 –0.3 –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) 2493 G16 2493 G17 2493 G18 2493fe For more information www.linear.com/LTC2493 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration 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 Typical Application Related Parts
Typical perForMance characTerisTics RMS Noise vs Input Differential Voltage RMS Noise vs VIN(CM) RMS Noise vs Temperature (TA)
1.0 1.0 1.0 VCC = 5V VCC = 5V VCC = 5V VREF = 5V VREF = 5V VREF = 5V 0.9 VIN(CM) = 2.5V 0.9 VIN = 0V 0.9 VIN = 0V TA = 25°C TA = 25°C VIN(CM) = GND f fO = GND fO = GND 0.8 O = GND 0.8 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 –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 –45 –30 –15 0 15 30 45 60 75 90 INPUT DIFFERENTIAL VOLTAGE (V) VIN(CM) (V) TEMPERATURE (°C) 2493 G10 2493 G11 2493 G12
RMS Noise vs VCC RMS Noise vs VREF Offset Error vs VIN(CM)
1.0 1.0 0.3 VREF = 2.5V VCC = 5V VCC = 5V VIN = 0V VIN = 0V VREF = 5V 0.9 VIN(CM) = GND 0.9 VIN(CM) = GND ) 0.2 VIN = 0V TA = 25°C TA = 25°C REF TA = 25°C f fO = GND f 0.8 O = GND 0.8 0.1 O = GND 0.7 0.7 0 RMS NOISE (µV) 0.6 RMS NOISE (µV) 0.6 –0.1 OFFSET ERROR (ppm of V 0.5 0.5 –0.2 0.4 0.4 –0.3 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5 0 1 2 3 4 5 –1 0 1 2 3 4 5 6 VCC (V) VREF (V) VIN(CM) (V) 2493 G13 2493 G14 2493 G15
Offset Error vs Temperature Offset Error vs VCC Offset Error vs VREF
0.3 0.3 0.3 VCC = 5V REF+ = 2.5V VCC = 5V VREF = 5V REF– = GND REF– = GND ) 0.2 VIN = 0V ) 0.2 VIN = 0V ) 0.2 VIN = 0V V REF VIN(CM) = GND REF VIN(CM) = GND REF IN(CM) = GND f T T 0.1 O = GND 0.1 A = 25°C A = 25°C f 0.1 O = GND fO = GND 0 0 0 –0.1 –0.1 –0.1 OFFSET ERROR (ppm of V OFFSET ERROR (ppm of V OFFSET ERROR (ppm of V –0.2 –0.2 –0.2 –0.3 –0.3 –0.3 –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) 2493 G16 2493 G17 2493 G18 2493fe For more information www.linear.com/LTC2493 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration 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 Typical Application Related Parts