Low-Power, 16-Bit Multichannel DAS with Internal Reference, 10-Bit DACs, and RTC

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The MAX1407/MAX1408/MAX1409/MAX1414 are low-power, general-purpose, multichannel data-acquisition systems (DAS). These devices are optimized for low-power applications. All the devices operate from a single +2.7V to +3.6V power supply and consume a maximum of 1.15mA in Run mode and only 2.5µA in Sleep mode.

The MAX1407/MAX1408/MAX1414 feature a differential 8:1 input multiplexer to the ADC, a programmable three-state digital output, an output to shutdown an external power supply, and a data ready output from the ADC. The MAX1408 has eight auxiliary analog inputs, while the MAX1407/MAX1414 include four auxiliary analog inputs and two 10-bit force/sense DACs. The MAX1414 features a 50mV trip threshold for the signal-detect comparator while the others have a 0mV trip threshold. The MAX1409 is a 20-pin version of the DAS family with a differential 4:1 input multiplexer to the ADC, one auxiliary analog input, and one 10-bit force/sense DAC.

The MAX1407/MAX1408/MAX1414 are available in space-saving 28-pin SSOP packages, while the MAX1409 is available in a 20-pin SSOP package.
MAX1407, MAX1408, MAX1409, MAX1414: Typical Operating Circuit MAX1407, MAX1408, MAX1409, MAX1414: Typical Operating Circuit Enlarge+

Key Features

  • +2.7V to +3.6V Supply Voltage Range in Standby, Idle, and Run Mode (Down to 1.8V in Sleep Mode)
  • 1.15mA Run Mode Supply Current
  • 2.5µA Sleep Mode Supply Current (Wake-Up, RTC, and Voltage Monitor Active)
  • Multichannel 16-Bit Sigma-Delta ADC
    • ±1.5 LSB (typ) Integral Nonlinearity
    • 30Hz or 60Hz Continuous Conversion Rate
    • Buffered or Unbuffered Mode
    • Gain of +1/3, +1, or +2V/V
    • Unipolar or Bipolar Mode
    • On-Chip Offset Calibration
  • 10-Bit Force/Sense DACs
  • Buffered 1.25V, 18ppm/°C (typ) Bandgap Reference Output
  • SPI™/QSPI™ or MICROWIRE™-Compatible Serial Interface
  • System Support Functions
    • RTC (Valid til 9999) and Alarm
    • High-Frequency PLL Clock Output (2.4576MHz)
    • +1.8V and +2.7V Active-Low RESET and Power-Supply Voltage Monitors
    • Signal Detect Comparator
    • Interrupt Generator (Active-Low INT and Active-Low DRDY)
    • Three-State Digital Output
    • Wake-Up Circuitry
  • 28-Pin SSOP (MAX1407/MAX1408/MAX1414), 20-Pin SSOP (MAX1409)


  • Automated Test Equipment (ATE)
  • Data Acquisition
  • Industrial Control Systems
  • Medical Instruments
  • Portable Equipment
  • Robotics

See parametric specs for Precision ADCs (< 5Msps) (434)

Part NumberResolution
Input ChannelsConv. Rate
ADC ArchitectureData BusDiff/S.E. InputInternal VREF
External VREF
External VREF
Unipolar VIN
Bipolar VIN
ADCmaxnominalminmaxmaxmaxSee Notes
MAX1407 1640.06Sigma-DeltaSPIDiff. Only1.251.151.353.63.62.5
$9.73 @1k
MAX1408 8
$7.38 @1k
MAX1414 4
$8.23 @1k

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.

80C32MODULE: Evaluation Kit for the MAX1407, MAX1408, MAX1409, and MAX1414
MAX1407EVKIT: Evaluation Kit for the MAX1407, MAX1408, MAX1409, and MAX1414
MAX1407EVSYS: Evaluation Kit for the MAX1407, MAX1408, MAX1409, and MAX1414
Request Reliability Report for: MAX1409 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

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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