Model No: ADT7461AARMZ-R
onsemi ADT7461AARMZ-R
Manufacturer: onsemi
SEMICON NO.: ADT7461AARMZ-R
Package: 8-MSOP
Stock: In stock
Description: Temperature Sensor Digital Local/Remote 8-bit ±1°C
SEMICON NO.: ADT7461AARMZ-R
Package: 8-MSOP
Stock: In stock
Description: Temperature Sensor Digital Local/Remote 8-bit ±1°C
Quantity :
| Mfr | onsemi |
| Device Type | Digital Temperature Sensor (Local/Remote) |
| Sensor Type | Digital, Local/Remote |
| Number of Channels | 2 |
| Output Type | SMBus (2-Wire Serial) |
| Resolution | 8-bit |
| Accuracy (Remote) | ±1°C (typ, 0°C to 70°C) / ±2.5°C (max, -40°C to 100°C) |
| Accuracy (Local) | ±1°C |
| Supply Voltage | 3.0 V to 3.6 V |
| Supply Current (Typ) | 240 µA |
| Standby Current | 30 µA |
| Temperature Conversion Time | 52 ms |
| Operating Temperature | -40°C to +120°C |
| Package | 8-MSOP |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
The ADT7461AARMZ-R is a precision dual-channel digital thermometer and over/undertemperature alarm IC manufactured by onsemi (originally developed by Analog Devices), specifically engineered for thermal management in computing platforms and industrial systems. This device features an on-chip temperature sensor plus a remote diode sensor input, enabling simultaneous monitoring of both ambient conditions and critical hotspot temperatures with ±1°C accuracy on the remote channel. Operating from a 3.0V to 3.6V supply, the ADT7461A is pin- and register-compatible with the ADM1032 and ADT7461, ensuring seamless integration into existing designs. The device communicates via a 2-wire SMBus serial interface with a default address of 0x4C, while the ADT7461A-2 variant with 0x4D address supports multi-sensor configurations on the same bus.
Applications
Due to its dual-channel monitoring capability and robust communication interface, the ADT7461AARMZ-R is extensively deployed across multiple demanding sectors. It serves as the primary thermal guardian in desktop and notebook computers, where it monitors CPU temperatures through embedded thermal diodes and controls cooling fan speeds based on programmable thresholds. In industrial controllers and embedded systems, the device provides critical overtemperature protection for power supplies, motor drives, and high-density circuit boards. Smart battery applications benefit from its precise temperature measurement for charge control and safety protection. The automotive sector employs this sensor for powertrain and cabin climate monitoring, while burn-in applications in semiconductor testing utilize its wide temperature range and high accuracy for process verification and reliability screening.
Alternative Digital Temperature Sensor Models
● TI LM96163: This remote diode temperature sensor with integrated fan control features TruTherm BJT beta compensation technology specifically optimized for sensing thermal diodes in 45nm, 65nm, and 90nm processors.
● ADI MAX31730: This 3-channel remote temperature sensor provides 12-bit resolution with 0.0625°C granularity and supports one local plus three remote sensing channels for comprehensive thermal monitoring in complex systems.
● Nuvoton NCT218: This dual-channel thermal monitor offers similar remote diode sensing capability with SMBus interface and integrated fan control, providing a cost-effective alternative for PC thermal management applications.
Applications
Due to its dual-channel monitoring capability and robust communication interface, the ADT7461AARMZ-R is extensively deployed across multiple demanding sectors. It serves as the primary thermal guardian in desktop and notebook computers, where it monitors CPU temperatures through embedded thermal diodes and controls cooling fan speeds based on programmable thresholds. In industrial controllers and embedded systems, the device provides critical overtemperature protection for power supplies, motor drives, and high-density circuit boards. Smart battery applications benefit from its precise temperature measurement for charge control and safety protection. The automotive sector employs this sensor for powertrain and cabin climate monitoring, while burn-in applications in semiconductor testing utilize its wide temperature range and high accuracy for process verification and reliability screening.
Alternative Digital Temperature Sensor Models
● TI LM96163: This remote diode temperature sensor with integrated fan control features TruTherm BJT beta compensation technology specifically optimized for sensing thermal diodes in 45nm, 65nm, and 90nm processors.
● ADI MAX31730: This 3-channel remote temperature sensor provides 12-bit resolution with 0.0625°C granularity and supports one local plus three remote sensing channels for comprehensive thermal monitoring in complex systems.
● Nuvoton NCT218: This dual-channel thermal monitor offers similar remote diode sensing capability with SMBus interface and integrated fan control, providing a cost-effective alternative for PC thermal management applications.
