ADM2914 Quad UV/OV Positive/Negative Voltage Supervisor

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 OV reset outputs
  • Adjustable reset timeout with disable option
  • Outputs guaranteed down to VCC of 1V
  • See data sheet for additional features
  • Download ADM2914-EP data sheet (pdf)
  • Operating temperature range of −55°C to +125°C
  • V62/12655 DSCC Drawing Number
    • Power Management
    Linear Products
    Data Sheets
    Documentnote
    ADM2914: Quad UV/OV Positive/Negative Voltage Supervisor Data Sheet (Rev. E)PDF 316 kB
    ADM2914-EP: Enhanced Product Data Sheet (Rev. 0)PDF 203.63 K
    ADM2914-DSCC: Military Data Sheet
    User Guides
    Documentnote
    UG-174: Evaluation Board User Guide for ADM2914 and ADM12914PDF 345 kB
    Frequently Asked Questions
    Documentnote
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    ADM2914-1ARQZ Production16 ld QSOPOTH 98-40 to 125C2.792.49Y
    ADM2914-1ARQZ-RL7 Production16 ld QSOPREEL 1000-40 to 125C02.49Y
    ADM2914-1SRQZEP Production16 ld QSOPOTH 98-40 to 125C16.4914.99Y
    ADM2914-1SRQZEP-R7 Production16 ld QSOPREEL 1000-55 to 125C014.99Y
    ADM2914-2ARQZ Production16 ld QSOPOTH 98-40 to 125C2.792.49Y
    ADM2914-2ARQZ-RL7 Production16 ld QSOPREEL 1000-40 to 125C02.49Y
    Evaluation Boards
    Part NumberDescriptionPriceRoHS
    EVAL-ADM2914EBZEvaluation Board100Y
    Reference Materials
    ADM2914: Quad UV/OV Positive/Negative Voltage Supervisor Data Sheet (Rev. E) adm2914
    ADM2914-EP: Enhanced Product Data Sheet (Rev. 0) adm2914
    ADM2914-DSCC: Military Data Sheet adm2914
    UG-174: Evaluation Board User Guide for ADM2914 and ADM12914 adm2914
    Supervisory Devices Complementary Parts Guide for Altera FPGAs adm690
    Supervisory Devices Complementary Parts Guide for Xilinx FPGAs adm690
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