Overview
The ADM1293-1BARUZ, produced by Analog Devices Inc., is a high-accuracy integrated digital power monitor. This device is designed to provide precise monitoring of current, voltage, and power using an on-chip 12-bit analog-to-digital converter (ADC). The data is communicated through a PMBus™ compliant I²C interface, enabling seamless integration with master controllers for comprehensive power management.
The ADM1293 series is particularly useful in applications requiring accurate power monitoring and control, including energy metering and power budgeting. The device supports both high-side and low-side current sensing and features bidirectional current sensing, making it versatile for various power monitoring needs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Accuracy of Current Monitoring | 0.33% at ±20 mV sense voltage over temperature | % |
| Common-mode Sense Voltage | 0 V to 20 V | V |
| ADC Resolution | 12-bit | - |
| Interface | PMBus™ compliant I²C | - |
| Operating Temperature Range | −40°C to +105°C | °C |
| Package Type | TSSOP-14 | - |
| Supply Voltage Range | 2.95V to 20V | V |
| Current Consumption | 3.6 mA | mA |
Key Features
- High accuracy current monitoring at low sense voltage
- Bidirectional current sensing
- Digital current, voltage, and power monitoring
- Power accumulation for energy metering
- Digitally programmable overcurrent alert
- Multifunctional pins with user-configurable functions
- PMBus fast mode compliant interface
- Separate SDA I/O for easy isolated communication
- Two address pins for 16 unique I²C addresses
- Cable drop compensation and current limit switches
Applications
- Power monitoring and power budgeting
- Central office equipment
- Telecommunications and data communications equipment
- PCs and servers
Q & A
- What is the primary function of the ADM1293-1BARUZ?
The primary function of the ADM1293-1BARUZ is to provide high-accuracy digital current, voltage, and power monitoring.
- What is the accuracy of current monitoring at low sense voltage?
The accuracy of current monitoring is 0.33% at ±20 mV sense voltage over temperature.
- What type of interface does the ADM1293-1BARUZ use?
The device uses a PMBus™ compliant I²C interface.
- What is the operating temperature range of the ADM1293-1BARUZ?
The operating temperature range is −40°C to +105°C.
- What package types are available for the ADM1293?
The device is available in TSSOP-14 and LFCSP packages.
- Does the ADM1293 support bidirectional current sensing?
- What is the purpose of the power accumulator in the ADM1293?
The power accumulator is used for energy metering.
- Can the overcurrent alert be programmed digitally?
- What types of applications is the ADM1293 typically used in?
The ADM1293 is typically used in power monitoring, central office equipment, telecommunications, data communications equipment, and PCs/servers.
- Does the ADM1293 have multifunctional pins?
