1 Features
1• ±1°C Remote Diode Sensor
• ±1°C Local Temperature Sensor
• Programmable Non-Ideality Factor
• Series Resistance Cancellation
• Alert Function
• Offset Registers for System Calibration
• Pin and Registers Compatible With ADT7461 and
ADM1032
• Programmable Resolution: 9 to 12 Bits
• Programmable Threshold Limits
• Two-Wire and SMBus Serial Interface
• Minimum and Maximum Temperature Monitors
• Multiple Interface Addresses
• ALERT and THERM2 Pin Configuration
• Diode Fault Detection

2 Applications
• LCD and DLP and LCOS Projectors
• Servers
• Industrial Controllers
• Central Office Telecom Equipment
• Desktop and Notebook Computers
• Storage Area Networks (SAN)
• Industrial and Medical Equipment
• Processor and FPGA Temperature Monitoring

3 Description
The TMP411 device is a remote temperature sensor
monitor with a built-in local temperature sensor. The
remote temperature-sensor, diode-connected
transistors are typically low-cost, NPN- or PNP-type
transistors or diodes that are an integral part of
microcontrollers, microprocessors, or FPGAs.
Remote accuracy is ±1°C for multiple device
manufacturers, with no calibration needed. The twowire
serial interface accepts SMBus write byte, read
byte, send byte and receive byte commands to
program the alarm thresholds and to read
temperature data.
Features that are included in the TMP411 device are:
series resistance cancellation, programmable nonideality
factor, programmable resolution,
programmable threshold limits, user-defined offset
register for maximum accuracy, minimum and
maximum temperature monitors, wide remote
temperature measurement range (up to 150°C), diode
fault detection, and temperature alert function.
The TMP411 device is available in VSSOP-8 and
SOIC-8 packages.