58.6ksps, 14-Bit, 2-Wire Serial ADC in a 14-Pin TSSOP

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The MAX1069 is a low-power, 14-bit successive-approximation analog-to-digital converter (ADC). The device features automatic power-down, an on-chip 4MHz clock, a +4.096V internal reference, and an I²C-compatible 2-wire serial interface capable of both fast and high-speed modes.

The MAX1069 operates from a single supply and consumes 5mW at the maximum conversion rate of 58.6ksps. AutoShutdown™ powers down the device between conversions, reducing supply current to less than 50µA at a 1ksps throughput rate. The option of a separate digital supply voltage allows direct interfacing with +2.7V to +5.5V digital logic.

The MAX1069 performs a unipolar conversion on its single analog input using its internal 4MHz clock. The full-scale analog input range is determined by the internal reference or by an externally applied reference voltage ranging from 1V to VAVDD.

The four address select inputs (ADD0-ADD3) allow up to sixteen MAX1069 devices on the same bus.

The MAX1069 is packaged in a 14-pin TSSOP and offers both commercial and extended temperature ranges. Refer to the MAX1169 for a 16-bit device in a pin-compatible package.
MAX1069: Typical Application Circuit MAX1069: Typical Application Circuit Enlarge+

Key Features

  • High-Speed I²C-Compatible Serial Interface
    • 400kHz Fast Mode
    • 1.7MHz High-Speed Mode
  • +4.75V to +5.25V Single Supply
  • +2.7V to +5.5V Adjustable Logic Level
  • Internal +4.096V Reference
  • External Reference: 1V to VAVDD
  • Internal 4MHz Conversion Clock
  • 58.6ksps Sampling Rate
  • AutoShutdown Between Conversions
  • Low Power
    • 5.0mW at 58.6ksps
    • 4.2mW at 50ksps
    • 2.0mW at 10ksps
    • 0.23mW at 1ksps
    • 3µW in Shutdown
  • Small 14-Pin TSSOP Package


  • Battery-Powered Test Equipment
  • Handheld Portable Applications
  • Medical Instruments
  • Receive Signal Strength Indicators
  • Solar-Powered Remote Systems
  • System Supervision
Part NumberResolution
Input Chan.Conv. Rate
ADC ArchitectureData BusDiff/S.E. InputInternal VREF
External VREF
External VREF
Unipolar VIN
ADCmaxnominalminmaxmaxSee Notes
MAX1069 14158SARI2CS.E. Only4.09615.54.09684-993
$13.47 @500
See All Precision ADCs (< 5Msps) (464)
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

Product Reliability Reports: MAX1069.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • MAX1069ACUD
  • MAX1069ACUD+
  • MAX1069ACUD+T
  • MAX1069ACUD-T
  • MAX1069AEUD
  • MAX1069AEUD+
  • MAX1069AEUD+T
  • MAX1069AEUD-T
  • MAX1069BCUD
  • MAX1069BCUD+
  • MAX1069BCUD+T
  • MAX1069BCUD-T
  • MAX1069BEUD
  • MAX1069BEUD+
  • MAX1069BEUD+T
  • MAX1069BEUD-T
  • MAX1069CCUD
  • MAX1069CCUD+
  • MAX1069CCUD+T
  • MAX1069CCUD-T
  • MAX1069CEUD
  • MAX1069CEUD+
  • MAX1069CEUD+T
  • MAX1069CEUD-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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    Environmental Management System >


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