Instrumentation Amplifier operates in environments to 210°C.

Press Release Summary:

Over its operating range of -55 to +210°C, AD8229 features CMRR of 100 dB, input voltage offset that varies by 100 nV/°C, and input noise of 1.0 nV/sqrt Hz. Latter makes amp suited for sensors that read faint signals. Gain can be set with single resistor, and additional features include 45 nV/sqrt Hz output noise, 15 MHz bandwidth, 25 V/µsec slew rate, THD of 120 dB at 1 kHz, and ±4 to ±18 V dual supply.

Original Press Release:

Industry's First Precision High -Temperature Instrumentation Amplifier Unveiled by Analog Devices

Guaranteed to 210°C, the AD8229 is industry's first instrumentation amplifier designed and manufactured for hot, harsh and hostile environments.

NORWOOD, Mass.--The industry's first precision instrumentation amplifier designed and manufactured specifically for high temperature applications was unveiled today by Analog Devices, Inc. (ADI), a world leader in semiconductors for high-performance signal processing applications and leading supplier of signal conditioning technology. The AD8229, 1.0-nV/sqrt Hz high-temperature instrumentation amplifier is the only low-noise instrumentation amplifier guaranteed to perform at up to 210°C in the most extreme environments, such as down-hole oil drilling, jet engines and space exploration. ADI Fellow Moshe Gerstenhaber explains how the AD8229 meets the design challenges of high-temperature environments in this video:

"The AD8229 is truly a breakthrough product for the oil exploration industry," said Jun Liu, General Manager of Qingdao Zitn Micro-electronics Co., Ltd. "It is not a retrofit of existing components. It was designed from the start for high-temperature environments. What this means to Zitn is that we will be able to operate our equipment longer with less repair time resulting in significant savings."

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    Until today's announcement, designers were forced to meet the challenges of rugged, noisy high-temperature environments with components not specifically designed for high-temperature conditions or were designed to operate at lower commercial grade temperatures. Often the repair and survival rates on systems using commercial-grade components are substandard, making them costly to maintain and operate. The AD8229 is unique because it solves some of the most difficult problems faced by engineers designing electronics for extreme hot, harsh and hostile environments to greatly improve maintenance and operation lifecycle.

    The AD8229 instrumentation amplifier is best-in-class in all three performance categories for high-temperature applications, including CMRR (common mode rejection ratio), voltage offset and input noise. CMRR performance is 100 dB over the temperature range of 55°C to 210°C. The AD8229 input voltage offset varies by only 100-nV/
    AD8229 High-Temperature Instrumentation Amplifier Features:
  • Low Noise
    1.0-nV/sqrt Hz Input Noise (max)
    45-nV/sqrt Hz Output Noise (max)
  • High CMRR
    100-dB CMRR (minimum), G = 10
  • AC specifications
    15-MHz bandwidth (G = 1)
    25-V/µs slew rate
  • Low THD: 120dB (G=1) at 1 kHz
  • ±4-V to ±18-V dual supply
  • Gain set with single resistor (G = 1 to 1000)

    Availability and Pricing
    Product    Availability    Temperature Range    Price Each Per 1,000    Packaging
    AD8229 Full volume -55°C to 210°C $120 8-lead CERDIP

    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 technologies, Analog Devices serves over 60,000 customers, representing virtually all types of electronic equipment. Celebrating over 40 years as a leading global manufacturer of high-performance integrated circuits used in analog and digital signal processing applications, Analog Devices is headquartered in Norwood, Massachusetts, with design and manufacturing facilities throughout the world. Analog Devices' common stock is listed on the New York Stock Exchange under the ticker gADIh and is included in the S&P 500 Index.

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