Datasheet LTC2498 (Analog Devices) - 2

LTC2498
absolute MaxiMuM ratings pin conFiguration (Notes 1, 2)
Supply Voltage (VCC) ... –0.3V to 6V TOP VIEW Analog Input Voltage SCK SDO CS f O SDI GND GND (CH0 to CH15, COM) ...–0.3V to (V 38 37 36 35 34 33 32 CC + 0.3V) Reference Input Voltage GND 1 31 GND NC 2 30 REF– ADCINN, ADCINP, MUXOUTP, GND 3 29 REF+ MUXOUTN ..–0.3V to (VCC + 0.3V) GND 4 28 VCC Digital Input Voltage..–0.3V to (V GND 5 27 MUXOUTN CC + 0.3V) Digital Output Voltage ...–0.3V to (V GND 6 26 ADCINN CC + 0.3V) 39 COM 7 25 ADCINP Operating Temperature Range CH0 8 24 MUXOUTP LTC2498C .. 0°C to 70°C CH1 9 23 CH15 LTC2498I ...–40°C to 85°C CH2 10 22 CH14 CH3 11 21 CH13 LTC2498H .. –40°C to 125°C CH4 12 20 CH12 Storage Temperature Range .. –65°C to 150°C 13 14 15 16 17 18 19 CH5 CH6 CH7 CH8 CH9 CH10 CH11 UHF PACKAGE 38-LEAD (5mm × 7mm) PLASTIC QFN TJMAX = 125°C, θJA = 34°C/W EXPOSED PAD (PIN 39) IS GND, MUST BE SOLDERED TO PCB
orDer inForMation LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2498CUHF#PBF LTC2498CUHF#TRPBF 2498 38-Lead (5mm × 7mm) Plastic QFN 0°C to 70°C LTC2498IUHF#PBF LTC2498IUHF#TRPBF 2498 38-Lead (5mm × 7mm) Plastic QFN –40°C to 85°C LTC2498HUHF#PBF LTC2498HUHF#TRPBF 2498 38-Lead (5mm × 7mm) Plastic QFN –40°C to 125°C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for information on non-standard lead based finish parts. 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) 0.1V ≤ VREF ≤ VCC, –FS ≤ VIN ≤ +FS (Note 5) 24 Bits Integral Nonlinearity 5V ≤ VCC ≤ 5.5V, VREF = 5V, VIN(CM) = 2.5V (Note 6) l 2 10 ppm of VREF H Grade l 12 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+ = 0.25VREF, IN– = 0.75VREF l 25 ppm of VREF Negative Full-Scale Error Drift 2.5V ≤ VREF ≤ VCC, IN+ = 0.25VREF, IN– = 0.75VREF 0.1 ppm of VREF/°C 2498fg 2 For more information www.linear.com/LTC2498 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 Digital Inputs and Digital Outputs Power Requirements Digital Inputs and Digital Outputs Typical Performance Characteristics Pin Functions Functional Block Diagram Test Circuits Timing Diagrams Applications Information Package Description Revision History Related Parts