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

Product Details

Key Features

Applications/Uses

Simplified Block Diagram

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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)

Applications/Uses

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

Description

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.

Simplified Block Diagram

MAX1407, MAX1408, MAX1409, MAX1414: Typical Operating Circuit MAX1407, MAX1408, MAX1409, MAX1414: Typical Operating Circuit Zoom icon

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .