| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
3,000 pcs
|
3000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Accuracy | |
| Function | |
| Mounting Type | |
| Operating Temperature | |
| Output Alarm | |
| Output Fan | |
| Output Type | |
| SVHC Present | |
| Sensing Temperature | |
| Sensor Type | |
| Supplier Device Package | |
| Supplier Package | |
| Tape & Reel | |
| Topology | |
| Voltage |
The ADM1021ARQ-REEL7 is a dual-channel digital thermometer and under/overtemperature alarm IC from On Semiconductor, designed for system thermal monitoring. It can measure temperature using an on-chip sensor or an external diode-connected transistor, such as those found on Pentium III processors or discrete NPN/PNP devices like the 2N3904/2N3906. This eliminates the need for calibration.
The device communicates via a two-wire SMBus serial interface. Programmable under/overtemperature limits can be set, and an ALERT output signals when temperatures go out of range, functioning as an interrupt or SMBus alert. It operates from a 3.0 V to 5.5 V supply and features 1°C accuracy for the on-chip sensor and 3°C accuracy for the remote sensor.
Packaged in a compact 16-lead QSOP, the ADM1021ARQ-REEL7 is suitable for surface mount applications. Its features make it ideal for thermal management in desktop computers, notebook computers, smart batteries, industrial controllers, telecom equipment, and instrumentation.
Key specifications include a supply voltage range of 3.0 V to 5.5 V, an operating temperature range of 0°C to 100°C, and SMBus output. The sensor type is both internal and external, with sensing temperatures from 0°C to 100°C for the external sensor. It includes an output alarm function but no fan output.
| Qty | Low | High |
|---|---|---|
| 1+ | $2.06 | $2.06 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The supply voltage range is 3.0V to 5.5V.
It operates from 0°C to 100°C.
It comes in a 16-QSOP surface-mount package with tape and reel packaging.
The local sensor accuracy is ±1°C and remote sensor accuracy is ±5°C.
It provides an SMBus output interface.
Yes, it has output alarm functionality.
It supports both internal and external sensors.