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5-Channel (4-Remote and 1-Local) High-Accuracy Remote and Local Temperature Sensor

Inventory: 12,169
Custom reel may be available

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Packaging information

Package | Pins VQFN (RGT) | 16
Operating temperature range (℃) Q (-40 to 125)
Package qty | Carrier: 3,000 | LARGE T&R
Custom reel may be available
View more packaging information

Quality information

RoHS Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow Level-2-260C-1 YEAR
Material content View
DPPM / MTBF / Fit rate View
Qualification summary View
Ongoing reliability monitoring View
Device marking View


  • 4-Channel Remote Diode Temperature Sensor
  • Local and Remote Accuracy: ±0.75°C (Maximum)
  • Temperature Resolution: 0.0625°C
  • Supply and Logic Voltage Range: 1.7 V to 3.6 V
  • 43-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-pin VQFN Package

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The TMP464 device is a high-accuracy, low-power temperature sensor using atwo-wire, SMBus or I2C compatible interface. Up tofour remote diode-connectedtemperature zones can be monitored simultaneously in addition to the local temperature. Aggregatingthe temperature measurements across a system allows improved performance through tighter guardbands and can reduce board complexity. A typical use case is for monitoring the temperature acrossdifferent processors, such as MCUs, GPUs, and FPGAs in complex systems such as servers andtelecommunications equipment. Advanced features such as series resistance cancellation,programmable non-ideality factor, programmable offset, and programmable temperature limits areincluded to provide a robust thermal monitoring solution with improved accuracy and noise immunity.

Each of the four remote channels (and the local channel) can be programmed independently with two thresholds thatare 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 TMP464 deviceprovides high accuracy (0.75°C) and high resolution (0.0625°C) measurement capabilities. The devicesupports low voltage rails (1.7 V to 3.6 V), common two-wire interfaces, and is available in asmall, space efficient package (3 mm × 3 mm) foreasy integration into computing systems. The remote junction supports a temperature range from–55°C to +150°C. The TMP464 has a preprogrammed temperature limit of125°C.

Qty Price
1-99 $1.58
100-249 $1.30
250-999 $0.94
1,000+ $0.70

Alternative carriers

Part number TMP464AIRGTT
Package qty | Carrier 250 | SMALL T&R
Inventory 250
Qty | Price (USD) 1ku | $0.81