ADM1293:  Digital Power Monitor with PMBus Interface

Product Details

Product Status:Recommended for New Designs

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), communicated through a PMBus™ compliant I2C interface.

These devices acquire the current by measuring the voltage difference across the external sense resistor. This voltage is amplified and digitized by an internal 12-bit ADC. The same ADC can also sample the primary input voltage and an auxiliary input voltage. The internal digital block can perform multiplication of the current and primary input voltage for power calculation. The ADM1293/ADM1294 also feature a power accumulator for energy metering. An industry-standard PMBus interface allows a master controller to read back these data from the device. The master controller can then combine this information with a known sense resistor value to calculate the current, voltage, power, and energy consumption over time on the monitored rail.

In conditions such as overcurrent, overvoltage, undervoltage, and overpower, the ADM1293/ADM1294 devices can generate an interrupt signal to the microprocessor through the GPOx/ALERTx outputs. The threshold for these conditions is digitally programmed via PMBus.

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. Its integrated shunt regulator allows it to be powered and to monitor supply in wide voltage ranges.

The ADM1293/ADM1294 are available in 4 mm × 4 mm 16-lead LFCSP and 14-lead TSSOP packages with a specified operating ambient temperature range from -40°C to +105°C for the ADM1293 and an operating junction temperature range from -40°C to +105°C for the ADM1294.

APPLICATIONS

  • Power monitoring/power budgeting
  • Central office equipment
  • Telecommunications and data communications equipment
  • PCs/servers

FEATURES and BENEFITS

  • Monitor current and two voltages
  • High accuracy current monitoring at low sense voltage
    0.33% accurate at ±20 mV sense voltage over temperature
  • Common mode sense voltage from 0V to 20V
  • Support high-side and low-side current sensing
  • Reports current, voltage and power
  • Power accumulation for energy metering
  • Bidirectional current sensing
  • Digital programmable over current alert
  • See datasheet for additional features

Functional Block Diagram for ADM1293

Sample Requests

For device and evaluation board sample requests, please contact your local ADI sales representative.

Design Tools,Models,Drivers & Software

Title Content Type File Type
Hot-Swap & Power Monitoring Evaluation Software
Requires the ADMxxxx Common Run-time to be installed in order to provide driver support for the USB-SMBUS-CABLEZ and USB-SDP-CABLEZ interface connectors.
Evaluation Software HTML
ADMxxxx Common Run-Time
This run-time installer is shared between the SuperSequencer, ADM1175-92 and ADM1293/4 and the Hot Swap and Power Monitor tools. Contains driver support for the USB-SMBUS-CABLEZ and USB-SDP-CABLEZ interface connectors.
Evaluation Software HTML

Evaluation Kits & Symbols & Footprints

Evaluation Boards & KitsView the Evaluation Boards and Kits page for documentation and purchasing

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

SampleSample & Buy

Price, packaging, availability

ADM1293 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADM1293-1AACPZ Status: Production 16 ld LFCSP 4x4 16 Ind Tray, 490 $4.61 $4.19 Y  Material Info Notify Me Purchase Sample
ADM1293-1AACPZ-RL7 Status: Production 16 ld LFCSP 4x4 16 Ind Reel, 1500 - $4.19 Y  Material Info Notify Me Purchase
ADM1293-1AARUZ Status: Production 14 ld TSSOP 14 Ind Tube, 96 - - Y  Material Info Notify Me Purchase Sample
ADM1293-1AARUZ-RL7 Status: Production 14 ld TSSOP 14 Ind Reel, 1000 - - Y  Material Info Notify Me Purchase
ADM1293-1BACPZ Status: Production 16 ld LFCSP 4x4 16 Ind Tray, 490 $3.07 $2.79 Y  Material Info Notify Me Purchase Sample
ADM1293-1BACPZ-RL7 Status: Production 16 ld LFCSP 4x4 16 Ind Reel, 1500 - $2.79 Y  Material Info Notify Me Purchase
ADM1293-1BARUZ Status: Production 14 ld TSSOP 14 Ind Tube, 96 - - Y  Material Info Notify Me Purchase Sample
ADM1293-1BARUZ-RL7 Status: Production 14 ld TSSOP 14 Ind Reel, 1000 - - Y  Material Info Notify Me Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

ADM1293/ADM1294 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADM1293EBZ Status: Production Evaluation Board $100.00 Yes -
EVAL-ADM1294EBZ Status: Production Evaluation Board $100.00 Yes -

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

Check Inventory & Purchase

View Sales and Distribution Offices

沪ICP备09046653号
content here.
content here.

Review this Product

Close