1 Features
1• 8-Channel Remote Diode Temperature Sensor
Accuracy: ±0.75°C (Maximum)
• Local and Remote Diode Accuracy: ±0.75°C
(Maximum)
• Local Temperature Sensor Accuracy for the
DSBGA Package: ±0.35°C (Maximum)
• Temperature Resolution: 0.0625°C
• Supply and Logic Voltage Range: 1.7 V to 3.6 V
• 67-μA Operating Current (1 SPS, All Channels
Active)
• 0.3-μA Shutdown Current
• Remote Diode: Series Resistance Cancellation,
η-Factor Correction, Offset Correction, and Diode
Fault Detection
• Register Lock Function Secures Key Registers
• I2C or SMBus™ Compatible Two-Wire Interface
With Pin-Programmable Address
• 16-Bump DSBGA and 16-Pin VQFN Packages

2 Applications
• MCU, GPU, ASIC, FPGA, DSP, and CPU
Temperature Monitoring
• Telecommunication Equipment
• Servers and Personal Computers
• Cloud Ethernet Switches
• Secure Data Centers
• Highly Integrated Medical Systems
• Precision Instruments and Test Equipment
• LED Lighting Thermal Control

3 Description
The TMP468 device is a multi-zone, high-accuracy,
low-power temperature sensor using a two-wire,
SMBus or I2C compatible interface. Up to eight
remote diode-connected temperature zones can be
monitored simultaneously in addition to the local
temperature. Aggregating the temperature
measurements across a system allows improved
performance through tighter guard bands and can
reduce board complexity. A typical use case is for
monitoring the temperature across different
processors, such as MCUs, GPUs, and FPGAs in
complex systems such as servers and
telecommunications equipment. Advanced features
such as series resistance cancellation, programmable
non-ideality factor, programmable offset, and
programmable temperature limits are included to
provide a robust thermal monitoring solution with
improved accuracy and noise immunity.
Each of the eight remote channels (and the local
channel) can be programmed independently with two
thresholds that are triggered when the corresponding
temperature is exceeded at the measured location. In
addition, there is a programmable hysteresis setting
to avoid constant toggling around the threshold.
The TMP468 device provides high accuracy (0.75°C)
and high resolution (0.0625°C) measurement
capabilities. The device supports low voltage rails
(1.7 V to 3.6 V), common two-wire interfaces, and is
available in a small, space efficient package (3 mm ×
3 mm or 1.6 mm × 1.6 mm) for easy integration into
computing systems. The remote junction supports a
temperature range from –55°C to +150°C.