1°C Dual SMBus Sensor with Resistance Error Correction

Datasheet

Revision 1.3 (03-24-06)

20

SMSC EMC1002

DATASHEET

Figure 5.2 Remote Temperature Diode Examples

Environmental Monitoring and Control (EMC) devices supplied by SMSC are designed to make

accurate temperature measurements. Careful design of the printed circuit board and proper selection

of the remote sensing diode will help to maintain the accuracy.

To DP

To DN

Local Ground

Typical Remote Parasitic

Substrate Transistor

e.g. CPU substrate PNP

To DP

To DN

To DP

To DN

Typical Remote

Discrete PNP Transistor

e.g 2N3906

Typical Remote

Discrete NPN Transistor

e.g. 2N3904