1 Features
• TMP411:
– ±1°C Local channel accuracy
– ±1°C Remote channel accuracy
– Supply range: 2.7V to 5.5V
– Available in VSSOP and SOIC 8-pin packages
• TMP411D:
– ±0.8°C Local channel accuracy
– ±0.8°C Remote channel accuracy
– Supply range: 1.62V to 5.5V
– Available in SOT-23 8-pin package
• Wide operating range: –40°C to 125°C
• Support I2C and SMBus interface
• Programmable Resolution: 9 to 12 Bits
• Programmable Non-Ideality Factor
• Series Resistance Cancellation
• Offset Registers for System Calibration
• Programmable Threshold Limits
• Diode Fault Detection
• Alert Function
– ALERT and THERM2 Pin Configuration
• Multiple Interface Addresses
• Pin and Registers Compatible With ADT7461 and
ADM1032

2 Applications
• Enterprise systems
– Rack server motherboard
– Smart network interface card (NIC)
• Standard notebook PC
• Wireless infrastructure
– Small cell base station
– Baseband unit (BBU)
• Software defined radio
• Processor and FPGA Temperature Monitoring

3 Description
The TMP411 and TMP411D devices are remote
temperature sensors with a built-in local temperature
sensor. The remote temperature sensor, diodeconnected
transistors are typically low-cost, NPN- or
PNP-type transistors or diodes that are an integral
part of microcontrollers, microprocessors, or FPGAs.
Remote temperature accuracy is ±1°C (TMP411) or
±0.8°C (TMP411D) for multiple device manufacturers,
with no calibration needed. The two-wire 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 and
TMP411D devices are: series resistance cancellation,
programmable non-ideality factor, programmable
resolution, programmable threshold limits, userdefined
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 and TMP411D is available in
SOT23-8 package.