Overview
The ADM1294-1AACPZ is a high-accuracy integrated digital power monitor produced by Analog Devices Inc. This device is designed to offer digital current, voltage, and power monitoring using an on-chip 12-bit analog-to-digital converter (ADC), which communicates through a PMBus™ compliant I2C interface. It is particularly suited for low-side supply monitoring and features bidirectional current sensing, high accuracy current monitoring at low sense voltage, and power accumulation for energy metering.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Number of Pins | 16 | - | 16-WQFN Exposed Pad |
| Mount | Surface Mount | - | - |
| Lifecycle Status | Production | - | - |
| Max Operating Temperature | 105°C | °C | - |
| Operating Supply Current | 3.6mA | mA | - |
| Packaging | Tape & Reel | - | - |
| RoHS Compliance | Compliant | - | - |
| Current Sense Absolute Error | 0.33% | % | VSENSE = ±20 mV, TA = −40°C to +85°C |
Key Features
- Bidirectional current sensing
- High accuracy current monitoring at low sense voltage (0.33% accurate at ±20 mV sense voltage over temperature)
- Power accumulation for energy metering
- PMBus fast mode compliant interface
- Support for monitoring current and two voltages using an on-chip 12-bit ADC
- Interrupt signals for overcurrent, overvoltage, undervoltage, and overpower conditions
Applications
- Power monitoring and power budgeting in central office equipment
- Telecommunications and data communications equipment
- PCs and servers
Q & A
- What is the primary function of the ADM1294-1AACPZ?
The primary function of the ADM1294-1AACPZ is to provide digital current, voltage, and power monitoring using an on-chip 12-bit ADC and a PMBus compliant I2C interface.
- What type of packaging does the ADM1294-1AACPZ use?
The ADM1294-1AACPZ is packaged in a 16-WQFN Exposed Pad and is available in Tape & Reel.
- What is the maximum operating temperature of the ADM1294-1AACPZ?
The maximum operating temperature of the ADM1294-1AACPZ is 105°C.
- Is the ADM1294-1AACPZ RoHS compliant?
Yes, the ADM1294-1AACPZ is RoHS compliant.
- What is the accuracy of current monitoring at low sense voltage?
The ADM1294-1AACPZ offers high accuracy current monitoring with an error of 0.33% at ±20 mV sense voltage over temperature.
- What types of applications is the ADM1294-1AACPZ suited for?
The ADM1294-1AACPZ is suited for power monitoring and power budgeting in central office equipment, telecommunications and data communications equipment, and PCs/servers.
- How does the ADM1294-1AACPZ communicate with other devices?
The ADM1294-1AACPZ communicates through a PMBus compliant I2C interface.
- Does the ADM1294-1AACPZ support energy metering?
Yes, the ADM1294-1AACPZ supports power accumulation for energy metering.
- What kind of interrupt signals can the ADM1294-1AACPZ generate?
The ADM1294-1AACPZ can generate interrupt signals for overcurrent, overvoltage, undervoltage, and overpower conditions.
- What is the operating supply current of the ADM1294-1AACPZ?
The operating supply current of the ADM1294-1AACPZ is 3.6mA.
