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ADM2914:  Quad UV/OV Positive/Negative Voltage Supervisor

Product Details


The ADM2914/ADM2914-EP are a quad voltage supervisory IC ideally suited for monitoring multiple rails in a wide range of applications.

Each monitored rail has two dedicated input pins, VHx and VLx, which allows each rail to be monitored for both overvoltage (OV) and undervoltage (UV) conditions. A common active low undervoltage (UV) and overvoltage (OV) pin is shared by each of the monitored voltage rails.

The ADM2914 includes a 1 V buffered reference output, REF, that acts as an offset when monitoring a negative voltage. The three-state SEL pin determines the polarity of the third and fourth inputs, that is, it configures the device to monitor positive or negative supplies.

The device incorporates an internal shunt regulator that enables the device to be used in higher voltage systems. This feature requires a resistor to be placed between the main supply rail and the VCC pin to limit the current flow into the VCC pin to no greater than 10 mA. The ADM2914 uses the internal shunt regulator to regulate VCC if the supply line exceeds the absolute maximum ratings.

The ADM2914 is available in three models. The ADM2914-1 offers a latching overvoltage output that can be cleared by toggling the LATCH input pin. The ADM2914-2 has a disable pin that can override and disable both the OV and UV output signals. The ADM2914-EP operates over the extended temperature range of −55°C to +125°C.

The ADM2914 is available in a 16-lead QSOP package and operates over the temperature range of −40°C to +125°C, while the ADM2914-EP operates over the extended temperature range of −55°C to +125°C.

Applications

  • Server supply monitoring
  • FPGA/DSP core and I/O voltage monitoring
  • Telecommunications equipment
  • Medical equipment

FEATURES and BENEFITS

  • Quad UV/OV positive/negative supervisor
  • Supervises up to 2 negative rails
  • Adjustable UV and OV input thresholds
  • High threshold accuracy over temperature: ±1.5%
  • 1 V buffered reference output
  • Open-drain UV and OVoutputs
  • Adjustable reset timeout with disable option
  • Outputs guaranteed down to VCC of 1 V
  • Glitch immunity
  • 62 μA supply current
  • 16-lead QSOP package
  • Operates over the temperature range of −40°C to +125°C
  • Download ADM2914-EP Data Sheet (pdf)
    Operating temperature range of −55°C to +125°C
  • V62/12655 DSCC Drawing Number

Functional Block Diagram for ADM2914

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Price, packaging, availability

ADM2914 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADM2914-1ARQZ Status: Production 16 ld QSOP 16 Ind Tube, 98 $2.79 $2.49 Y  Material Info PCN Purchase Sample
ADM2914-1ARQZ-RL7 Status: Production 16 ld QSOP 16 Ind Reel, 1000 - $2.49 Y  Material Info PCN Purchase
ADM2914-1SRQZEP Status: Production QSOP 150 MIL 16 Ind Tube, 98 $16.49 $14.99 Y  Material Info Notify Me Purchase
ADM2914-1SRQZEP-R7 Status: Production QSOP 150 MIL 16 Ind Reel, 1000 - $14.99 Y  Material Info Notify Me Purchase
ADM2914-2ARQZ Status: Production 16 ld QSOP 16 Ind Tube, 98 $2.79 $2.49 Y  Material Info PCN Purchase Sample
ADM2914-2ARQZ-RL7 Status: Production 16 ld QSOP 16 Ind Reel, 1000 - $2.49 Y  Material Info PCN 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.

ADM2914/ADM12914 Evaluation Board
Model Description Price RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
EVAL-ADM2914EBZ Status: Contact ADI 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.

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