The ADT7461 is a ±1°C temperature monitor with series resistance cancellation, which can measure temperature in the range of 0°C to +127°C (default) or -55°C to +150°C.
The ADT7461 is a dual‑channel digital temperature monitor with on‑chip and remote sensors. It offers series resistance cancellation, programmable temperature limits, and SMBus communication for use in PCs, industrial controllers, smart batteries, and other embedded systems.
The datasheet includes electrical specifications, pin descriptions, SMBus timing, typical performance curves, thermal characteristics, and an ordering guide for the SOIC and MSOP package options. It also lists the device's SMBus addresses (0x4C or 0x4D) and safety ratings.
| Supply Voltage (Voo) | 3.0 V – 5.5 V |
|---|---|
| Average Operating Supply Current | 170‑215 µA |
| Standby Mode Current | 5.5 µA (‑40 °C < Ts < +85 °C) |
| Local Sensor Resolution | 1 °C |
| Remote Sensor Resolution | 0.25 °C |
| SMBus Address (ADT7461) | 0x4C |
| Maximum Series Resistance Cancelled | 3 kΩ |
The ADT7461 uses SMBus address 0x4C; the ADT7461‑2 variant uses 0x4D.
It provides two temperature channels: a local sensor and a remote diode sensor.
The device operates from 3.0 V to 5.5 V supply voltage.