Powerelectronics 2293 3741texasinstruments

Op Amp Delivers High Precision Measurements for Industrial Applications

April 16, 2014
Texas Instruments introduced the industry's first 36-V rail-to-rail input and output (RRIO) operational amplifier (op amp) to achieve precision offset voltage and drift without using auto-zero techniques.

Texas Instruments introduced the industry's first 36-V rail-to-rail input and output (RRIO) operational amplifier (op amp) to achieve precision offset voltage and drift without using auto-zero techniques. The OPA192 achieves stable offset voltage drift over the full specified temperature range, which eliminates the need for system level calibration.

Fast settling and high-output drive, combined with precision, allows designers to use the device to drive analog-to-digital converters (ADCs) in high-voltage, precision data acquisition systems including test and measurement, and industrial sensors and controls.

Key features and benefits of the OPA192:

  • Industry-leading precision:  Using e-Trim™ technology, TI's patented package-level trimming architecture, the device provides 5-µV offset voltage and 0.2-uV/C offset drift over temperature without the use of internally clocked auto-zero which increases the accuracy of industrial sensor signal conditioning.
  • Precise 36-V input range: RRIO enables maximum input dynamic range for precision high-voltage measurement in industrial automation and control applications.
  • Robust output drive: 60-mA output current drive and 1-nF capacitive-load drive provide system stability for high-voltage buffers and muxed data acquisition.

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