1. Products
  2. Power Monitor, Control, and Protection
  3. Supervisory Circuits
  4. Single-Supply Monitors
  5. MAX706S


Features and Benefits

  • µMAX Package, Small 8-Pin SO
  • Precision Supply-Voltage Monitors
    • 2.63V (MAX706P/R, MAX706AP/AR, and MAX708R)
    • 2.93V (MAX706S, MAX706AS, and MAX708S)
    • 3.08V (MAX706T, MAX706AT, and MAX708T)
  • 200ms Reset Time Delay
  • Debounced TTL/CMOS-Compatible Manual Reset Input
  • 100µA Quiescent Current
  • WDI Disable Feature (MAX706AP/AR/AS/AT)
  • Watchdog Timer: 1.6s Timeout
  • Reset Output Signal:
    • Active-High Only (MAX706P, MAX706AP)
    • Active-Low Only (MAX706R/S/T, MAX706AR/AS/AT)
    • Active-High and Active-Low (MAX708R/S/T)
  • Voltage Monitor for Power-Fail or Low-Battery Warning
  • 8-Pin Surface-Mount Package
  • Guaranteed active-low RESET Assertion to VCC = 1V

Product Details

The MAX706P/R/S/T, MAX706AP/AR/AS/AT, and MAX708R/S/T microprocessor (µP) supervisory circuits reduce the complexity and number of components required to monitor +3V power-supply levels in +3V to +5V µP systems. These devices significantly improve system reliability and accuracy compared to separate ICs or discrete components.

The MAX706P/R/S/T and MAX706AP/AR/AS/AT supervisory circuits provide the following four functions:

    1) A reset output during power-up, power-down, and brownout conditions.
    2) An independent watchdog output that goes low if the watchdog input has not been toggled within 1.6s.
    3) A 1.25V threshold detector for power-fail warning, low-battery detection, or for monitoring a power supply other than the main supply.
    4) An active-low, manual-reset input.
The only difference between the MAX706R/AR, MAX706S/AS, and MAX706T/AT is the reset-threshold voltage levels, which are 2.63V, 2.93V, and 3.08V, respectively. All have active-low reset output signals. The MAX706P/AP are identical to the MAX706R/AR, except the reset output signal is active-high. The watchdog timer function for the MAX706AP/AR/AS/AT disables when the WDI input is left open or connected to a high-impedance state of a low-leakage tri-state output.

The MAX708R/S/T provide the same functions as the MAX706R/S/T and MAX706AR/AS/AT except they do not have a watchdog timer. Instead, they provide both active-low RESET and RESET outputs. As with the MAX706, devices with R, S, and T suffixes have reset thresholds of 2.63V, 2.93V, and 3.08V, respectively.

These devices are available in 8-pin SO, DIP, and µMAX® packages and are fully specified over the operating temperature range.


  • Battery-Powered Equipment
  • Computers
  • Controllers
  • Critical µP Power Monitoring
  • Intelligent Instruments
  • Portable Instruments

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Product Recommendations

MAX706S Companion Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
MAX706SCSA+ Material Declaration Reliability Data Small-Outline IC, Narrow (0.15in)
MAX706SCSA+T Material Declaration Reliability Data Small-Outline IC, Narrow (0.15in)
MAX706SCUA+ Material Declaration Reliability Data Micro-MAX, Thin Shrink Small-Outline
MAX706SCUA+T Material Declaration Reliability Data Micro-MAX, Thin Shrink Small-Outline
MAX706SESA+ Material Declaration Reliability Data Small-Outline IC, Narrow (0.15in)
MAX706SESA+T Material Declaration Reliability Data Small-Outline IC, Narrow (0.15in)
MAX706SEUA+ Material Declaration Reliability Data Micro-MAX, Thin Shrink Small-Outline
MAX706SEUA+T Material Declaration Reliability Data Micro-MAX, Thin Shrink Small-Outline
Wafer Fabrication Data MAX706S Reliability Data

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