Product details

Local sensor accuracy (max) 2 Type Remote Operating temperature range (°C) -55 to 125 Supply voltage (min) (V) 1.7 Interface type I2C, SMBus Supply voltage (max) (V) 3.6 Features ALERT Supply current (max) (µA) 2 Temp resolution (max) (Bits) 12 Remote channels (#) 1 Addresses 9 Rating Space
Local sensor accuracy (max) 2 Type Remote Operating temperature range (°C) -55 to 125 Supply voltage (min) (V) 1.7 Interface type I2C, SMBus Supply voltage (max) (V) 3.6 Features ALERT Supply current (max) (µA) 2 Temp resolution (max) (Bits) 12 Remote channels (#) 1 Addresses 9 Rating Space
CFP (HKU) 10 45.4896 mm² 7.02 x 6.48
  • QMLV Qualified: 5962R-1721801VXC
    • Thermally Enhanced HKU Package
    • Radiation-Hardness-Assured (RHA) up to Total Ionizing Dose (TID) 100 krad(Si) at low dose rate (LDR) of 10 mrad/s
    • Single Event Latchup (SEL) Immune to 76 MeV·cm2/mg at 125°C
    • 10-Lead HKU Ceramic Package
  • Remote Diode Temperature Sensor Accuracy: ±1.5°C (Across Extended Temperature Range of [–55°C to 125°C])
  • Local Temperature Sensor Accuracy: ±2°C (Across Extended Temperature Range of [–55°C to 125°C])
  • Enables Measurement Of Remote Diode Temperatures in the Range of –64°C to 191°C
  • Resolution for Local and Remote Channels: 0.0625°C
  • Supply and Logic Voltage Range: 1.7 V to 3.6 V
  • 35-µA Operating Current (1 SPS),
    3-µA Shutdown Current
  • Series Resistance Cancellation
  • η-Factor and Offset Correction
  • Programmable Digital Filter
  • Diode Fault Detection
  • Two-Wire and SMBus™ Serial Interface Compatible with Pin-Programmable Address
  • QMLV Qualified: 5962R-1721801VXC
    • Thermally Enhanced HKU Package
    • Radiation-Hardness-Assured (RHA) up to Total Ionizing Dose (TID) 100 krad(Si) at low dose rate (LDR) of 10 mrad/s
    • Single Event Latchup (SEL) Immune to 76 MeV·cm2/mg at 125°C
    • 10-Lead HKU Ceramic Package
  • Remote Diode Temperature Sensor Accuracy: ±1.5°C (Across Extended Temperature Range of [–55°C to 125°C])
  • Local Temperature Sensor Accuracy: ±2°C (Across Extended Temperature Range of [–55°C to 125°C])
  • Enables Measurement Of Remote Diode Temperatures in the Range of –64°C to 191°C
  • Resolution for Local and Remote Channels: 0.0625°C
  • Supply and Logic Voltage Range: 1.7 V to 3.6 V
  • 35-µA Operating Current (1 SPS),
    3-µA Shutdown Current
  • Series Resistance Cancellation
  • η-Factor and Offset Correction
  • Programmable Digital Filter
  • Diode Fault Detection
  • Two-Wire and SMBus™ Serial Interface Compatible with Pin-Programmable Address

The TMP461-SP device is a radiation-hardened, high-accuracy, low-power remote temperature sensor monitor with a built-in local temperature sensor. The remote temperature sensors are typically low-cost discrete NPN or PNP transistors, or substrate thermal transistors or diodes that are integral parts of microprocessors, analog-to-digital converters (ADC), digital-to-analog converters (DAC), microcontrollers, or field-programmable gate arrays (FPGA). Temperature is represented as a 12-bit digital code for both local and remote sensors, giving a resolution of 0.0625°C. The two-wire serial interface accepts the SMBus communication protocol with up to nine different pin-programmable addresses.

Advanced features such as series resistance cancellation, programmable nonideality factor (η-factor), programmable offset, programmable temperature limits, and a programmable digital filter, are combined to provide a robust thermal monitoring solution with improved accuracy and noise immunity.

The TMP461-SP is ideal for multi-location, high-accuracy temperature measurements in a variety of distributed telemetry applications. The integrated local and remote temperature sensors simplify spacecraft housekeeping activities by providing an easy way of measuring temperature gradients. The device is specified for operation over a supply voltage range of 1.7 V to 3.6 V, and a temperature range of –55°C to 125°C.

The TMP461-SP device is a radiation-hardened, high-accuracy, low-power remote temperature sensor monitor with a built-in local temperature sensor. The remote temperature sensors are typically low-cost discrete NPN or PNP transistors, or substrate thermal transistors or diodes that are integral parts of microprocessors, analog-to-digital converters (ADC), digital-to-analog converters (DAC), microcontrollers, or field-programmable gate arrays (FPGA). Temperature is represented as a 12-bit digital code for both local and remote sensors, giving a resolution of 0.0625°C. The two-wire serial interface accepts the SMBus communication protocol with up to nine different pin-programmable addresses.

Advanced features such as series resistance cancellation, programmable nonideality factor (η-factor), programmable offset, programmable temperature limits, and a programmable digital filter, are combined to provide a robust thermal monitoring solution with improved accuracy and noise immunity.

The TMP461-SP is ideal for multi-location, high-accuracy temperature measurements in a variety of distributed telemetry applications. The integrated local and remote temperature sensors simplify spacecraft housekeeping activities by providing an easy way of measuring temperature gradients. The device is specified for operation over a supply voltage range of 1.7 V to 3.6 V, and a temperature range of –55°C to 125°C.

Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Same functionality with different pin-out to the compared device
TMP9R00-SP ACTIVE Radiation-hardness-assured (RHA) 9-channel (8 remote and 1 local) high-accuracy temperature sensor Higher channel count QMLV-RHA (8 remote and 1 local channel)

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 13
Type Title Date
* Data sheet TMP461-SP Radiation-Hardness-Assured (RHA), High-Accuracy Remote and Local Temperature Sensor datasheet (Rev. B) PDF | HTML 19 Feb 2018
* Radiation & reliability report TMP461-SP Single-Event Effects (SEE) Radiation Test Report (Rev. D) PDF | HTML 27 Nov 2023
* Radiation & reliability report TMP461-SP Total Ionizing Dose (TID) Report (Rev. C) 04 Jan 2021
* Radiation & reliability report TMP461-SP (5962R1721701VXC) Neutron Displacement Damage Characterization 10 Sep 2018
* SMD TMP461-SP SMD 5962-17218 22 Mar 2018
More literature TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. A) 31 Aug 2023
White paper Space Power Supply for the STAR-Tiger SpaceFibre Routing Switch PDF | HTML 27 Jul 2023
Selection guide TI Space Products (Rev. I) 03 Mar 2022
Application note Remote Temperature Transistor Sensor Selection Guide PDF | HTML 24 Mar 2021
Technical article Satellite state of health: how space-grade ICs are improving telemetry circuit des PDF | HTML 26 Jan 2021
E-book Radiation Handbook for Electronics (Rev. A) 21 May 2019
User guide TSW12D1620EVM-CVAL User's Guide (Rev. A) 29 Jan 2019
Application note Measuring Die Temperature with Remote Diode Sensing in Space 10 Dec 2018

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TMP461EVM-CVAL — Radiation Hardness Assured (RHA) High-Accuracy Remote and Local Temperature Sensor Evaluation Module

The TMP461-SP device is a high-accuracy, low-power remote temperature sensor monitor with a built-in local temperature sensor. The remote temperature sensors are typically low-cost discrete NPN or PNP transistors, or substrate thermal transistors or diodes that are integral parts of (...)

User guide: PDF
Not available on TI.com
Evaluation board

TSW12D1620EVM-CVAL — ADC12D1620QML-SP evaluation module for 300-krad, 12-bit, dual 1.6-GSPS or single 3.2-GSPS ADC

The TSW12D1620EVM-CVAL is a 1.5-GHz wideband receiver evaluation module (EVM) that includes ceramic engineering models of the amplifier, analog-to-digital converter (ADC), clocking, temperature sensor, microcontroller, and power solution. The board is best suited for (...)

User guide: PDF
Not available on TI.com
Development kit

ALPHA-XILINX-KU060-SPACE — Alpha Data® board for Xilinx® Kintex® UltraScale™ XQRKU060 FPGA with TI power

This is a development kit for the Xilinx® XQRKU060 FPGA with industrial -1 speed grade. ADA-SDEV-KIT2 has a modular board design with a XRTC-compatible configuration module, two FMC connectors, DDR3 DRAM, system monitoring, and space-grade TI power management and temperature-sensing solutions.
Firmware

SBAC235 MSP430FR5969 Firmware

lock = Requires export approval (1 minute)
Supported products & hardware

Supported products & hardware

Products
Digital temperature sensors
TMP461-SP Radiation-hardness-assured (RHA), high-accuracy remote and local temperature sensor
MSP430 microcontrollers
MSP430FR5969 16 MHz MCU with 64KB FRAM, 2KB SRAM, AES, 12-bit ADC, comparator, DMA, UART/SPI/I2C, timer MSP430FR5969-SP Radiation Hardened Mixed-Signal Microcontroller
High-speed ADCs (≥10 MSPS)
ADC12D1620QML-SP Radiation-hardness-assured (RHA), QMLV, 300-krad, 12-bit, dual 1.6-GSPS or single 3.2-GSPS ADC
Hardware development
Evaluation board
TSW12D1620EVM-CVAL ADC12D1620QML-SP evaluation module for 300-krad, 12-bit, dual 1.6-GSPS or single 3.2-GSPS ADC
Simulation model

TMP461 and TMP461-SP IBIS MODEL

SLAM269.ZIP (53 KB) - IBIS Model
Reference designs

TIDA-010191 — Space-grade multichannel JESD204B 15-GHz clocking reference design

Phased-array antennas and digital beamforming are key technologies that will boost the performance of future spaceborne radar imaging and broadband satellite communication systems. Digital beamforming, unlike analog beamforming, typically requires a set of data converters per antenna element. (...)
Design guide: PDF
Reference designs

TIDA-010197 — Versatile satellite health monitoring and control platform reference design with < 1% accuracy

This reference design features a highly modular design for radiation-hardened satellite telemetry systems that utilizes the versatility of LMP7704-SP to accurately monitor temperature, voltage and current to provide feedback to the host board. It also provides controlled analog outputs to provide (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-070004 — Space-grade reference design using integrated digital-output temperature sensor

This reference design illustrates the fact that several spacecraft projects provide a system health status telemetry that ground personnel monitor in real time. This reference design shows an example using a digital output temperature sensor to acquire temperature data on a sub-system using a (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
CFP (HKU) 10 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos