Analog Devices’ 24-bit Sigma-Delta A/D Converter Achieves Twice the Speed of Competing Converters and Industry’s Best Noise

  Analog Devices’ 24-bit Sigma-Delta A/D Converter Achieves Twice the Speed of
  Competing Converters and Industry’s Best Noise Performance

Business Wire

NORWOOD, Mass. -- December 04, 2012

Analog Devices, Inc. (ADI), a global leader in high-performance signal
processing technology and the data converter market share leader*, today
introduced a multiplexed 24-bit sigma-delta A/D converter that doubles the
throughput rate of alternative sigma-delta converters while dissipating less
power. Designed for process automation and instrumentation systems where data
channel density is increasing and channels must be monitored faster, ADI’s new
AD7176-2 A/D converter achieves a 50 kSPS (thousand samples per second)
multi-channel scan rate. In an automated, high-precision production line, the
performance of the AD7176-2 allows for faster manufacturing while achieving
the precision, low-input bandwidth signal measurements that are inherently
associated with the sigma-delta architecture. Measured on a single channel,
the AD7176-2 delivers as many as 17.2 noise-free bits at 250 kSPS and 22
noise-free bits at 5 SPS.

  *Download data sheet, view product page, access ADI’s Circuits from the
    Lab™ reference circuits and request samples:
  *Learn more about designing with the sigma-delta converter architecture
    through this interactive tutorial:
  *Get support at ADI’s EngineerZone™, an online technical support community:

The AD7176-2 A/D converter includes high-precision, on-chip peripherals,
including a 2.5 V, ±2.5 ppm/°C reference and ±2.5% internal oscillator that
reduce board space and lower bill of materials costs while maintaining high
performance. The new converter features flexible on-chip digital filters,
which optimize settling, resolution and line frequency rejection. The new
converter also can be configured on a per-channel basis allowing for different
filter and output data rates as well as per-channel offset and gain error

AD7176-2 24-bit Sigma-Delta A/D Converter Key Features:

  *5 SPS to 250 kSPS output rate for fast and flexible updates
  *17.2 noise free bits at 250 kSPS for more accurate measurements
  *Up to 90 dB 50 Hz and 60 Hz line frequency rejection using enhanced 50 Hz
    and 60 Hz rejection filters
  *7.8 mA total current consumption

Pricing, Availability and Complementary Products
                                                              Price Each
Product    Sample         Channel         Reference   In           Package
             Availability     Configuration                   1,000
                              4 pseudo/2        2.5 V                        24-lead
AD7176-2   Yes            full            ±  2        $10.25       TSSOP
                              differential      ppm/°C

The AD7176-2 can be designed into circuits together with ADI’s single-supply,
low-noise, low-offset AD8656 CMOS amplifier and single supply, attenuating
input stage, AD8475 differential driver.

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.

* Analog Devices, Inc. leads the worldwide data converter market with a 48
percent share, according to industry analyst firm Databeans, Inc. in its
market research report titled “2011 Data Converters.” Analog Devices’ 48
percent share is larger than the combined market share of the nearest eight

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Analog Devices, Inc.
Grainne Murphy, 353-61-495540
Porter Novelli
Andrew MacLellan, 617-897-8270
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