EMC1023_07 Datasheet, PDF (1/19 Pages) SMSC Corporation – 1°C Triple Temperature Sensor with Resistance Error Correction

EMC1023
1°C Triple Temperature
Sensor with Resistance
Error Correction
Datasheet
General Description
The EMC1023 is a System Management Bus (SMBus)
temperature sensor that is capable of monitoring three
temperature zones. Four unique part numbers can be
ordered, each with a different SMBus Address. The
three temperature zones consist of two external diodes
and one internal monitor.
Extended features include resistance error correction
and ideality factor configuration eliminating both major
sources of temperature measurement error.¹ The 11-bit
delta-sigma temperature-to-digital converter provides
superb linearity, excellent noise immunity and
repeatable temperature readings. An extended
temperature format may be selected for compatibility
with a broad range of CPUs. Selectable conversion
rates and standby mode support low-power operation.
1.Patents pending
Features
„ Resistance Error Correction
„ Ideality Factor Configuration
„ Accepts 2200pF cap for noise suppression
„ Remote Thermal Zones
— ±1°C Accuracy (40°C to 80°C)
— 0.125°C resolution
„ Internal Thermal Zone
— ±3°C Accuracy (0°C to 85°C)
— 0.125°C resolution
„ Low Power; 3.0V to 3.6V Supply
„ Four Unique SMBus Addresses Available
„ Programmable Conversion Rate
„ MSOP-8 3x3mm Lead-Free RoHS Compliant
Package
Applications
„ Desktop and Notebook Computers
„ Thermostats
„ Smart batteries
„ Industrial/Automotive
DP1
DN1
Switching
Current
DP2
DN2
Local Temp
Diode
Simplified Block Diagram
EMC1023
11-bit
delta-sigma
ADC
Remote Temp
Register 1
Remote Temp
Register 2
Local Temp
Register
Configuration
Register
Digital Mux
and
Byte Interlock
Status Register
SMCLK
SMDATA
SMSC EMC1023
DATASHEET
Revision 1.2 (02-05-07)