LTC2983_15 Datasheet, PDF (2/72 Pages) Linear Technology – Multi-Sensor High Accuracy Digital Temperature Measurement System

LTC2983
Table of Contents
Features............................................................................................................................. 1
Applications........................................................................................................................ 1
Typical Application ................................................................................................................ 1
Description......................................................................................................................... 1
Absolute Maximum Ratings...................................................................................................... 3
Order Information.................................................................................................................. 3
Complete System Electrical Characteristics................................................................................... 3
Pin Configuration.................................................................................................................. 3
ADC Electrical Characteristics................................................................................................... 4
Reference Electrical Characteristics............................................................................................ 4
Digital Inputs and Digital Outputs............................................................................................... 5
Typical Performance Characteristics........................................................................................... 6
Pin Functions....................................................................................................................... 9
Block Diagram.....................................................................................................................10
Test Circuits.......................................................................................................................11
Timing Diagram...................................................................................................................11
Overview........................................................................................................................... 12
Applications Information........................................................................................................16
Thermocouple Measurements............................................................................................................................... 21
Diode Measurements............................................................................................................................................. 24
RTD Measurements............................................................................................................................................... 28
Thermistor Measurements..................................................................................................................................... 43
Direct ADC Measurements..................................................................................................................................... 55
Supplemental Information.......................................................................................................55
Fault Protection and Anti-Aliasing.......................................................................................................................... 57
2- and 3-Cycle Conversion Modes......................................................................................................................... 57
Running Conversions Consecutively on Multiple Channels.................................................................................... 58
MUX Configuration Delay....................................................................................................................................... 58
Global Configuration Register................................................................................................................................ 59
Custom Thermocouples..........................................................................................................59
Custom RTDs......................................................................................................................62
Custom Thermistors..............................................................................................................65
Package Description.............................................................................................................70
Revision History..................................................................................................................71
Typical Application...............................................................................................................72
Related Parts......................................................................................................................72
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