Datasheet LTC2484 (Analog Devices) - 2

LTC2484
absoluTe MaxiMuM raTings pin conFiguraTion (Note 1)
Supply Voltage (V TOP VIEW CC) to GND .. –0.3V to 6V Analog Input Voltage to GND ... –0.3V to (VCC + 0.3V) SDI 1 10 fO Reference Input Voltage to GND .. –0.3V to (VCC + 0.3V) VCC 2 9 SCK 11 Digital Input Voltage to GND .. –0.3V to (V VREF 3 8 GND CC + 0.3V) GND IN+ 4 7 SDO Digital Output Voltage to GND .. –0.3V to (VCC + 0.3V) IN– 5 6 CS Operating Temperature Range LTC2484C ... 0°C to 70°C DD PACKAGE 10-LEAD (3mm × 3mm) PLASTIC DFN LTC2484I ...–40°C to 85°C TJMAX = 125°C, θJA = 43°C/W Storage Temperature Range ... –65°C to 125°C EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
orDer inForMaTion LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2484CDD#PBF LTC2484CDD#TRPBF LBSS 10-Lead (3mm × 3mm) Plastic DFN 0°C to 70°C LTC2484IDD#PBF LTC2484IDD#TRPBF LBSS 10-Lead (3mm × 3mm) Plastic DFN –40°C to 85°C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
e lecTrical characTerisTics (norMal speeD) The
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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 24 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 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 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 2484ff 2 For more information www.linear.com/LTC2484 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics (Normal Speed) Pin Configuration Electrical Characteristics (2x Speed) Converter Characteristics Analog Input and Reference Digital 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