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Datasheet LTC2480 (Analog Devices) - 3

ПроизводительAnalog Devices
Описание16-Bit ΔΣ ADC with Easy Drive Input Current Cancellation
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ELECTRICAL CHARACTERISTICS (NORMAL SPEED). The. denotes the specifications which

ELECTRICAL CHARACTERISTICS (NORMAL SPEED) The denotes the specifications which

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LTC2480
ELECTRICAL CHARACTERISTICS (NORMAL SPEED) The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution (No Missing Codes) 0.1 ≤ VREF ≤ VCC, –FS ≤ VIN ≤ +FS (Note 5) l 16 Bits Integral Nonlinearity 5V ≤ VCC ≤ 5.5V, VREF = 5V, VIN(CM) = 2.5V (Note 6) l 2 10 ppm of VREF 2.7V ≤ VCC ≤ 5.5V, VREF = 2.5V, VIN(CM) = 1.25V (Note 6) 1 ppm of VREF Offset Error 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Note 14) l 0.5 2.5 µV Offset Error Drift 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC 10 nV/°C Positive Full-Scale Error 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF , IN– = 0.25VREF l 25 ppm of VREF 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF , IN– = 0.25VREF (H-Grade) l 40 ppm of VREF Positive Full-Scale Error Drift 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF , IN– = 0.25VREF 0.1 ppm of VREF/°C Negative Full-Scale Error 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF , IN– = 0.25VREF l 25 ppm of VREF 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF , IN– = 0.25VREF (H-Grade) l 40 ppm of VREF Negative Full-Scale Error Drift 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF , IN– = 0.25VREF 0.1 ppm of VREF/°C Total Unadjusted Error 5V ≤ VCC ≤ 5.5V, VREF = 2.5V, VIN(CM) = 1.25V 15 ppm of VREF 5V ≤ VCC ≤ 5.5V, VREF = 5V, VIN(CM) = 2.5V ppm of VREF 2.7V ≤ VCC ≤ 5.5V, VREF = 2.5V, VIN(CM) = 1.25V ppm of VREF Output Noise 5V ≤ VCC ≤ 5.5V, VREF = 5V, GND ≤ IN– = IN+ ≤ VCC (Note 13) 0.6 µVRMS Internal PTAT Signal TA = 27°C 390 450 mV Programmable Gain l 1 256
ELECTRICAL CHARACTERISTICS (2X SPEED) The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 3, 4) PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution (No Missing Codes) 0.1 ≤ VREF ≤ VCC, –FS ≤ VIN ≤ +FS (Note 5) l 16 Bits Integral Nonlinearity 5V ≤ VCC ≤ 5.5V, VREF = 5V, VIN(CM) = 2.5V (Note 6) l 2 10 ppm of VREF 2.7V ≤ VCC ≤ 5.5V, VREF = 2.5V, VIN(CM) = 1.25V (Note 6) 1 ppm of VREF Offset Error 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC (Note 14) l 0.5 2 mV Offset Error Drift 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN– ≤ VCC 100 nV/°C Positive Full-Scale Error 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF , IN– = 0.25VREF l 25 ppm of VREF 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF , IN– = 0.25VREF (H-Grade) l 40 ppm of VREF Positive Full-Scale Error Drift 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF , IN– = 0.25VREF 0.1 ppm of VREF/°C Negative Full-Scale Error 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF , IN– = 0.25VREF l 25 ppm of VREF 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF , IN– = 0.25VREF (H-Grade) l 40 ppm of VREF Negative Full-Scale Error Drift 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF , IN– = 0.25VREF 0.1 ppm of VREF/°C Output Noise 5V ≤ VCC ≤ 5.5V, VREF = 5V, GND ≤ IN– = IN+ ≤ VCC (Note 13) 0.84 µVRMS Programmable Gain (Note 15) l 1 128 2480fe For more information www.linear.com/LTC2480 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics (Normal Speed) Electrical Characteristics (2X Speed) Converter Characteristics Analog Input and Reference Analog Inputs and Digital Outputs Power Requirements Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Test Circuits Timing Diagrams Applications Information Package Description Revision History Typical Application Related Parts
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