Analog Devices’ A/D Converters with Internal Reference Consume Lowest Power with High Accuracy/Small Package Combination

Multichannel, 12-bit, 1-MSPS SAR A/D converters allows industrial and medical equipment designers to optimize operating and static power budgets.

Aug 27 2014 - Norwood, MA
  • Analog Devices, Inc. (ADI) introduced today three ultra-low-power, multichannel, 12-bit, 1-MSPS SAR (successive approximation register) A/D converters. The new 2, 4 and 8-channel A/D converters are designed for battery-powered data acquisition modules, handheld meters, field instruments and communications applications as well as medical devices such as portable electrocardiograms and heart rate monitors. The A/D converters are the most power-efficient in their class, dissipating a maximum of 1.7 mW at 1 MSPS (mega-samples per second), which is over 60 percent less power than the closest SAR A/D converter competitor. The A/D converters are housed in a tiny 4-mm × 4-mm LFCSP package and feature a 5 ppm/°C typ on-chip internal reference. Watch a video about ADI’s new multichannel A/D converters:

    • View the AD7091R-8 A/D data sheet, order samples and evaluation boards
    • Get support at ADI’s EngineerZone online technical support community

    Key Features:

    • 1 MSPS throughput with flexible power/throughput rate management
    • Power consumption at 3V supply:
      - 1.7 mW @ 1 MSPS
      - 900 µW @ 500 kSPS
      - 1.4 µW @ powerdown
    • Programmable channel sequencer with access to the multiplexer output eliminates the need for one buffer per channel saving both power and space
    • User programmable alert can signal an out-of-bounds condition without requiring the user to service the A/D converter output data (minimizes processor overhead/power)
    • SPI interface
    • Temperature range: –40°C to +125°C

    Pricing and Availability
    Product Channels Availability Price Each per 1,000 Packaging
    AD7091R-2 2
    16-lead TSSOP
    4-mm × 4-mm LFCSP
    AD7091R-4 4
    20-lead TSSOP
    4-mm × 4-mm LFCSP
    AD7091R-8 8
    24-lead TSSOP
    4-mm × 4-mm LFCSP

  • About Analog Devices
  • Innovation, performance, and excellence are the cultural pillars on which Analog Devices has built one of the longest standing, highest growth companies within the technology sector. Acknowledged industry-wide as the world leader in data conversion and signal conditioning technology, Analog Devices serves over 60,000 customers, representing virtually all types of electronic equipment. Analog Devices is headquartered in Norwood, Massachusetts, with design and manufacturing facilities throughout the world. Analog Devices is included in the S&P 500 Index.
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