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DRV411 - Sensor Signal Conditioning-IC

Description

The DRV411 is designed to condition InSb Hall elements for use in closed-loop current-sensor modules.

The DRV411 provides precision excitation circuitry for the Hall-element effectively eliminating the offset and offset-drift of the Hall element.

Features

  • 1.
  • 23 Optimized for Symmetric Hall-Elements (for example, AKM HW-322, HW-302, or similar).
  • Spinning Current Hall Sensor Excitation.
  • Elimination of Hall Sensor Offset and Drift.
  • Elimination of 1/f Noise.
  • Extended Current Measurement Range.
  • H-Bridge Drive Capability: 250 mA.
  • Precision Difference Amplifier:.
  • Offset and Drift: 100 µV (max), 2 µV/°C (max).
  • System Bandwidth: 200 kHz.
  • Precision Reference:.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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DRV411 www.ti.com SBOS693B – AUGUST 2013 – REVISED DECEMBER 2013 Sensor Signal Conditioning IC for Closed-Loop Magnetic Current Sensors Check for Samples: DRV411 FEATURES 1 •23 Optimized for Symmetric Hall-Elements (for example, AKM HW-322, HW-302, or similar) • Spinning Current Hall Sensor Excitation – Elimination of Hall Sensor Offset and Drift – Elimination of 1/f Noise • Extended Current Measurement Range – H-Bridge Drive Capability: 250 mA • Precision Difference Amplifier: – Offset and Drift: 100 µV (max), 2 µV/°C (max) – System Bandwidth: 200 kHz • Precision Reference: – Accuracy: 0.2% (max) – Drift: 50 ppm/°C (max) – Pin-Selectable for 2.5 V, 1.65 V, and Ratiometric Mode • Overrange and Error Flags • Supply: 2.7 V to 5.
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