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Downhole Drilling

Acquires pressure and temperature data through frequency comparison and transmits it over I2C, at temperatures up to 200 degrees C.

ASIC success story

Application

State-of-the-art downhole drilling monitoring and evaluation systems require high performance at extreme temperature profiles. CSS has partnered with a leading supplier of downhole monitoring devices to create a data-acquisition ASIC that operates at temperatures of 200°C.

At a glance

Operating temperatureUp to 200°C

Acquisition channelsThree

InterfaceI2C

MarketIndustrial

Custom solution from CSS

This ASIC integrates the functionality to acquire pressure and temperature data through frequency comparison and then transmit the acquired data through I2C. The chip has three acquisition channels and includes reference oscillators used in the frequency comparison. The chip also contains power management and other signal processing.

Die layout of the downhole drilling data-acquisition ASIC
Die layout

Key features

  • Three XTAL oscillators
  • I2C communication link
  • Frequency comparison logic
  • Operational up to 200°C

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