SMSC EMC1002

PRODUCT PREVIEW

Revision 1.2 (04-15-05)

Data Brief

PRODUCT FEATURES

EMC1002

1°C Dual SMBus

Sensor with Resistance

Error Correction

General Description

The EMC1002 is an SMBus temperature sensor that

monitors up to two temperature zones and can generate

accuracy, the EMC1002 provides a low-cost solution for

critical temperature monitoring applications. Extended

features include automatic resistance error correction

and programmable ideality factor configuration

eliminating both major sources of temperature

temperature-to-digital converter provides superb

linearity, excellent noise immunity and repeatable

temperature readings.

The EMC1002 generates two separate interrupts with

programmable thermal trip points. The THERM output

operates as a thermostat with programmable threshold

and hysteresis. The ALERT output can be configured

as a maskable SMBus alert with programmable

window comparator limits, or a second THERM output.

The EMC1002 is pin compatible with the ADT7461,

ADM1032, LM99, and the MAX6649.

Features

—

±1°C Accuracy (40°C to 80°C)

— 0.125

°C resolution

—

±3°C Accuracy (0°C to 85°C)

available

Applications

Simplified Block Diagram

1.Patents pending.

EMC1002

Internal

Temp Diode

Switching

Current

SMCLK

Internal Temp

Register

High Limit Registers

THERM Hysteresis Register

Low Limit Registers

THERM Limit Register

Address Pointer Register

Conversion Rate Register

Interrupt Masking

Status Register

Configuration Register

Remote Temp

Register

ALERT

SMDATA

11-bit

delta-sigma

ADC

DP

DN

THERM