ADM1032 is a remote and local system temperature monitor from Analog Devices. The main features include: 0.125℃ resolution/1℃ accuracy on remote channel, 1℃ resolution/3℃ accuracy on local channel, fast (up to 64 measurements/s) measurement speed, integrated and remote temperature sensing offset registers for system calibration, SMBus interface.
The ADM1032 is a dual‑channel digital thermometer and under/over‑temperature alarm intended for use in personal computers, industrial controllers, and other embedded systems. It measures temperature via an on‑chip sensor or an external diode/transistor, providing 0.125 °C resolution on the remote channel and programmable THERM and ALERT outputs for fan control or CPU throttling.
Key features include a 2‑wire SMBus interface, programmable temperature limits, fast conversion rates up to 64 samples / s, and low standby current. The device is supplied in 8‑lead SOIC and MSOP packages and supports optional external THERM limits. Detailed specifications, pin assignments, and register maps are provided for system integration.
| Supply Voltage (Vpp) | 3.0 V – 5.5 V |
|---|---|
| Average Operating Supply Current | 170 µA typ |
| Remote Channel Resolution | 0.125 °C |
| Local Sensor Accuracy | +1 °C to +3 °C |
| SMBus address (ADM1032‑2) | 0x4D |
| Standby Supply Current | 5.5 pA |
| Maximum Conversion Rate | 64 samples / s |
| Default Hysteresis | 10 °C |
The SMBus address for the ADM1032‑2 is 0x4D.
The ADM1032 can perform up to 64 measurements per second.
The default hysteresis value is 10 °C.
The standby supply current is 5.5 pA.