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Compact pressure sensor IC BM1383GLV product information release

Compact pressure sensor IC BM1383GLV

Product Overview | Key Specifications | Features 1 | Features 2 | Features 3 | Applications | Related Information

Product Overview

The BM1383GLV piezoresistive pressure sensor makes it easy to obtain high accuracy pressure information by performing temperature correction based on proprietary algorithms via an internal IC. Detects differences in height (altitude) through pressure changes in wearable devices, activity monitors, and advanced detection for indoor navigation in smartphones and tablets.

CLGA12V025M(2.5x2.5x0.95) top and bottom images

Key Specifications

[ Key Specifications ]

  • Pressure Range:300hPa to 1100hPa
  • Absolute Pressure Accuracy:±1hPa (Typ.)
  • Relative Pressure Accuracy:±0.12hPa (Typ.)
  • Average Current (1Hz Data Rate):5µA (Typ.)
  • Operating Temperature Range:-40 to +85ºC
  • Supply Voltage Range:1.71 to 3.6V

[ Block Diagram ]
Internal temperature correction function provides high accuracy relative pressure (altitude) characteristics from low to high temperatures

Features 1:Built-in temperature compensation function enables stable measurement

Conventional pressure sensors exhibit problems maintaining high detection accuracy at low temperatures. In response, ROHM integrates a temperature compensation function utilizing original compensation algorithms that covers both high and low temperatures, making high accuracy pressure detection possible even at low temperatures. In addition, this eliminates the need to incorporate temperature compensation within the MCU itself, reducing design load considerably.

Temperature-Based Detection Error Variation Comparison: New vs. Conventional Products

Features 2:Achieves class-leading relative altitude accuracy: ±20cm

High accuracy detection MEMS and precision low power consumption AD converter provides best-in-class relative altitude accuracy: ±20cm (relative pressure accuracy ±0.024hPa).

Data results transmitted by the pressure sensor IC

Features 3:Compact package

Leveraging development expertise cultivated over many years makes it possible to reduce the size of both the sensing and calculation blocks, resulting in the smallest pressure sensor with built-in temperature compensation function on the market.

CLGA12V025M (2.5x2.5x0.95) top and bottom images

Applications

  • Advanced detection for indoor navigation
    (i.e. in smartphones and tablets)
  • High/low (height) detection in wearable devices,
    activity meters, and the like
Smartphones, tablets, activity monitors, wearable tech

Related Information

New Product Bullitin
Compact pressure sensor IC "BM1383GLV" (333KB)

ROHM will continue to meet market needs with optimized products and solutions as well as expand its already comprehensive product lines utilizing the latest technologies.

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