SmartSens MS2100: A brand-new low in power consupmtion.
2-axis Measurement
High-Resolution/Accuracy
Low Power

SmartSens MS2100

The simplest way to integrate 2-axis magnetic field sensing into any device, the SmartSens MS2100 comprises two orthogonal magnetic sensors on a single chip to provide high-resolution compassing while setting new lows for energy consumption. It boasts unparalleled dynamic range, hysteresis-free performance, immunity to large-signal noise, and stability over a wide temperature range. Ideal for field sensing applications where power is in short supply, the SmartSens MS2100 is optimized for use in watches, radar detectors, and any consumer product with integrated compassing functions.

The SmartSens MS2100 combines PNI's magneto-inductive (MI) sensors and ASIC into a single package for unparalleled performance. Designed to facilitate digital compassing in consumer electronics products, the MS2100 can enable heading accuracy of 1˚with 0.5˚ resolution. The device also includes pins to support the connection of a third MI sensor axis for higher performance applications. The MS2100 uses significantly less power than comparable magneto-resistive (MR) or fluxgate sensors. And because it doesn't require setting and resetting like MR devices, its peak current requirement is dramatically less. The microprocessor-compatible SPI interface allows easy access to the MS2100's measurement parameters, while eliminating the need for glue logic components. 3V operation ensures compatibility with most battery-powered products. Providing software-configurable resolution, sampling rate, and measurement range, the MS2100 can be optimized for the user's system.
These advantages make the MS2100 the choice for high volume applications where small size and low power requirements are paramount.


  • Digital Interface
    SPI protocol at 3 V
  • Low Power
    0.7 mA at 3.0 V DC
    No set-reset current pulse (degauss) required
  • Small Footprint
    7.0 × 7.0 × 1.35 mm
  • Surface Mount Package
    20 pads (QFN)
  • Wide Field Measurement Range
    ± 1100 µT (± 11 Gauss)
  • Wide Temperature Range
    −20 to 70 °C (operational)
  • High Accuracy
    1.0° with 0.5° resolution

Specifications

Accuracy 1.0° with 0.5° resolution
External Components Required No
Field Range ± 11 Gauss
Heading Accuracy
Hi-Resolution Field Measurement Yes
Interphase Open
Needs Glue Logic No
Needs Set/Reset Current Pulses No
Noise Stabilized Yes
Offset Drift Free Yes
Output Digital
Peak Reflow 240 °C
Power Consumption 0.7 mA at 3.0 V DC
Power Type 3.0 V DC
Recognized Supplier Yes
Saturation Point > 5.0 Gauss
Size 7.0 × 7.0 × 1.35 mm
Storage Temperature Range −40 to 125 °C
Surface Mount Package 20 pads (QFN)
Temperature Operation Range −20 to 70 °C
Third-Axis Provision Yes