 Features
 Wide supply voltage range: 3.0 V to 3.6 V
 One external diode temperature monitor
− Maximum inaccuracy of ±1°C
(20 ~ 110°C)
− 12-bit resolution: 0.0625°C
 One internal diode temperature monitor
− Maximum inaccuracy of ±1°C
(20 ~ 110°C)
− 12-bit resolution: 0.0625°C
 Resistance Error Correction
 Automatic BJT Type Detection
 Programmable High Limit and Low Limit (
_____
ALERT
pin)
 Programmable Therm Limit (
______
THERM/ADDR pin)
 Programmable SMBus (or I2C) address
− 1001_100(r/
_w
): DIO1412A
− Selectable by
______
THERM /ADDR pull-up
resistance: DIO1412C
 Operating temperature range: -40°C to 125°C
 Applications
 Server
 Notebook computers
 Industrial
 Description
The DIO1412 is high-precision sensor chip for
temperature monitoring in laptops, servers, and
industrial applications. The DIO1412 achieves an
inaccuracy of ±1°C even in complex application
environments by utilizing advanced methods,
including Resistance Error Correction (REC),
Dynamic Element Matching, Automatic BJT Type
Detection, Automatic Beta Detection, and
Compensation.
The DIO1412 monitors one external diode
temperature and one internal diode temperature. The
DIO1412 is compatible with the System Management
Bus (SMBus) and Inter-Integrated Circuit (I2C)
communication protocol.
The DIO1412 can operate at ambient temperatures of
-40°C ~ 125°C and have programmable High, Low,
and Therm Limit for overtemperature alarm. In
addition, the device can also detect erroneous states.