Date: 13/03/2011

High temperature withstanding instrumentation amplifier IC from ADI

Analog Devices, Inc. (ADI) has made available a new instrumentation amplifier operating reliably up to 210 Deg C of temperature. The AD8229 is suggested for sensor fitted electronic systems such as down-hole oil drilling, jet engines and space exploration which got to measure very weak signals from sensors and transducers.

ADI claims 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/°C over the entire temperate range. Input noise is 1.0-nV/vHz making the amp ideal for sensors that read faint signals, such as those used in down-hole drilling, nuclear magnetic resonance spectroscopy and gamma ray detection.
AD8229 High-Temperature Instrumentation Amplifier Features:

Low Noise
1.0-nV/vHz Input Noise (max)
45-nV/vHz 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 PricingProduct Availability Temperature Range Price Each Per 1,000 Packaging
AD8229 Full volume production now -55°C to 210°C $120 8-lead CERDIP



For detailed specifications visit: http://www.analog.com/en/amplifiers-and-comparators/instrumentation-amplifiers/ad8229/products/product.html

To downlaod datasheet visit:

http://www.analog.com/static/imported-files/data_sheets/AD8229.pdf