ADM1293/ADM1294 is a digital power monitor with PMBus interface that monitors current and two voltages. It features high accuracy current monitoring, bidirectional current sensing, digitally programmable overcurrent alert, and more.
The ADM1293 and ADM1294 are high accuracy integrated digital power monitors that offer digital current, voltage, and power monitoring using an on-chip 12-bit analog-to-digital converter (ADC). These devices communicate through a PMBus compliant I2C interface. The ADM1293 is designed for high-side supply monitoring with a voltage range from 0 V to 20 V, while the ADM1294 is designed for low-side supply monitoring and features an integrated shunt regulator.
| Operating Temperature Range (ADM1293) | -40°C to +105°C |
|---|---|
| ADC Resolution | 12-bit |
| Interface Type | PMBus compliant I2C |
| Quiescent Current (ADM1293) | 3.3 mA |
| Quiescent Current (ADM1294) | 3.6 mA |
The ADM1293 is designed for high-side supply monitoring with a voltage monitoring range from 0 V to 20 V.
The ADM1294 is designed for low-side supply monitoring and includes an integrated shunt regulator.
They are available in 4 mm × 4 mm, 16-lead LFCSP and 14-lead TSSOP packages.