The ADM1034 is a Thermal Monitor and Fan Speed (RPM) Controller from Analog Devices. It features 1 local and 2 remote temperature channels, ±1°C accuracy, SMBus 2.0, 1.1, and 1.0 compliance, 3 V to 5.5 V supply, and more.
The ADM1034 is a dual‑channel remote‑ and local‑temperature sensor that also controls up to two cooling fans. It communicates via a 2‑wire SMBus 2.0 interface and includes programmable over‑/under‑temperature limits, fault queues, and a fan‑fault output.
The document contains electrical specifications, pin‑out descriptions, typical performance curves, absolute maximum ratings, register maps, mechanical dimensions, and ordering information for the 16‑lead QSOP package.
| Supply Voltage (Vcc) | 3.0 V min / 3.3 V typ / 3.6 V max |
|---|---|
| Resolution (Temperature) | 0.03125 °C |
| Fan Speed Measurement Accuracy | +4 % |
| Input High Voltage (TACH pins) | 2.0 V typ |
The ADM1034 communicates over a 2‑wire SMBus 2.0 interface.
It provides one local temperature channel and two remote temperature channels.
FAN_FAULT is an open‑drain output that goes low when one or both fans stall.