Isolated Amp Drives Industrial Voltage-Sensing Applications

Texas Instruments ISO224 reinforced isolated amplifier boasts the industry's highest precision and working voltages, and longest lifetime reliability. With performance improvements that include better nonlinearity, lower offset and gain error, and higher temperature stability, the ISO224 allows engineers to overcome performance limitations and design high-precision systems. 


Features include:

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  • 50% higher working voltages than required by isolation industry standards, common-mode transient immunity (CMTI) up to 80 kV/µs and robust operation over an extended industrial temperature range of -55°C to +125°C.
  • More accurate measurements of ±10V signals, which are widely used in industrial applications, with 25% better nonlinearity, eight times lower gain error, lower offset drift and faster system response than similar devices.
  • Users can reduce board space with the ISO224's 60% smaller package than the previous-generation ISO12x amplifiers as well as its output that supports direct connection to an ADC with a 5V input.
  • A single, high-side supply with integrated voltage detection that simplifies the design and system-level diagnostics. 

Designers can download the TINA-TI SPICE model and then simulate and analyze their circuit behavior with the ISO224 isolated amplifier by downloading the SIM TINA-TI reference design, the ISO224 TINA-TI SPICE model, or by using the ISO224 evaluation module. Preproduction samples of the ISO224 are available now. It is available in an 8-pin, 5.85 mm x 7.5 mm small-outline integrated circuit (SOIC) package. Pricing starts at $6.49 each. For more specs and info, checkout the ISO224 datasheet.

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