Instrumentation amp guaranteed to 210°C
1 min read
Analog Devices has announced what it claims to be the industry's first precision instrumentation amplifier designed and manufactured specifically for high temperature applications.
According to the semiconductor specialist, the AD8229, 1.0nV/vHz high temperature instrumentation amplifier is the only low noise instrumentation amplifier guaranteed to perform at up to 210°C in the most extreme environments. Applications include down hole oil drilling, jet engines and space exploration.
"The AD8229 is truly a breakthrough product for the oil exploration industry," said Jun Liu, general manager of Qingdao Zitn Micro-electronics. "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."
ADI claims the AD8229 instrumentation amplifier is best in class in all three performance categories for high temperature applications, including common mode rejection ratio (cmrr), voltage offset and input noise. CMRR performance is 100dB over the temperature range of 55 to 210°C, while the AD8229 input voltage offset varies by 100-nV/°C over the entire temperate range. Input noise is 1.0-nV/vHz, making the amp suitable for sensors that read faint signals, such as those used in down hole drilling, nuclear magnetic resonance spectroscopy and gamma ray detection.
