High-Slope, Low-Power, Analog Temperature Sensor in an SC70 Package

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The MAX6612 is a low-power precision analog output temperature sensor in a tiny 5-pin SC70 package. The sensitivity of the output voltage to temperature is a high 19.53mV/°C. This sensitivity provides superior noise immunity. The voltage/temperature slope is chosen to provide convenient bit weights when the MAX6612 drives the input of an ADC with a 2.5V or 5V reference.

The MAX6612 provides an analog voltage output proportional to temperature. Accuracy is ±1.2°C (max) at +25°C, ±3.0°C (max) from TA = 0°C to +70°C, and ±5.5°C (max) from TA = -10°C to +125°C. Useful measurements can be obtained at temperatures as high as +150°C. Self-heating effects are negligible due to the low current consumption of the part.

Unlike many analog temperature sensors, the MAX6612 is stable with large capacitive loads. Any capacitive load greater than or equal to 1000pF yields stable operation, providing broad flexibility in board-level design.

The operating temperature range varies with the supply voltage, with a higher supply voltage enabling a wider temperature range. The MAX6612 can be used over a range of -10°C to +125°C with a supply voltage of 3.3V or greater. For applications with a supply voltage of 2.4V, the MAX6612 can be used over a temperature range of -10°C to +70°C.
MAX6612: Typical Operating Circuit MAX6612: Typical Operating Circuit Enlarge+

Key Features

  • Optimized for Use with ADCs
  • High Temperature-to-Voltage Slope
  • Able to Drive High-Capacitive Loads
  • Operates Up to +150°C
  • Low Current Consumption (35µA max)
  • No Calibration Required
  • Space-Saving SC70 Package
  • Applications/Uses

    • Battery Packs
    • GPS Equipment
    • Home Appliances
    • Industrial Equipment
    • Medical Instruments
    • Portable Equipment
    • Wireless Base Stations
    Part NumberSensor TypeInterfaceChannelsAccuracy
    Parasite Pwr.Oper. Temp.
    See Notes
    MAX6612 LocalAnalogOne3No-40 to +125
    $0.49 @1k
    See All Temperature Sensors (111)
    Pricing Notes:
    This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    Quality and Environmental Data

    Request Reliability Report for: MAX6612MXK 
    Lead-Free Package Tin (Sn) Whisker Reports

    Additional Resources

    Temperature Family by Product Type

    CAD Symbols and Footprints

  • MAX6612MXK+
  • MAX6612MXK+T
  • MAX6612MXK-T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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