The RM3000 Geomagnetic Sensor Suite: Best-in-class magnetic field sensing with no hysteresis, temperature drift or resetting - and the lowest power needs on the market
The highest precision sensor in its class, PNI's RM3000 geomagnetic sensor suite delivers high performance resolution and repeatability with extremely low noise. The RM3000 provides high gain, a wide field measurement range, superior noise immunity, no hysteresis and is extremely stable over temperature. All this comes with the lowest power consumption in the industry.
Enables Unprecedented Tracking and Pointing Accuracy in 3D
The RM3000 Reference Geomagnetic Sensor suite is designed to enable 3D applications and are ideal for use in video game control, solid-state navigation devices and handheld devices with integrated compassing functions. The RM3000 comprises three sensor coils driven by PNI’s 3D MagIC ASIC (The RM2000 comprises two sensor coils for 2D applications). The interface to the 3D MagIC ASIC is through an SPI bus, eliminating the need for signal conditioning or an analogue / digital converter.
Unlike magneto-resistive sensors, PNI’s magneto-inductive sensors do not require temperature calibration or high current set-and-reset pulses before each measurement. Hence they are simple to design in and the peak current requirement is dramatically reduced. It isn’t surprising this patented technology has been proven across a wide spectrum of applications, including motion tracking, compassing, video game control, TV and set-top box control and magnetic field measurement.
The RM3000 Evaluation Board is available for design and prototyping for high volume applications, as well as for research, education and hobby use. This board integrates PNI's geomagnetic sensors and 3D MacIC on to a single PCB.
Product Availability
RM3000 enables unparalleled performance in 3D applications and comprises two Sen-XY sensors and one Sen-Z sensor, plus the new 3D MagIC ASIC control.
The RM3000 Evaluation Board incorporates PNI's RM3000 with peripheral components on a single PCB. It is ideal for prototyping applications such as video game control and TV remote control devices that require high refresh rates and high magnetic sensor resolution. The SPI interface allows direct interface to a microprocessor, eliminating the need for additional signal processing. For 2D applications, the third axis can simply be turned off.
FEATURES
| Large Field Measurement Range | Low Noise |
| ± 800 µT | 30 nT typical at 200 cycle counts |
| Wide Temperature Range | Minimal External Components |
| -40° to 85°C (operational) | RoHs Compliant |
| Surface Mount Package | Low Power |
| Supplied on tape and reel | Draws 0.25 mA at 35 Hz and 200 cycle counts |
SENSOR SUITE SPECIFICATIONS (subject to change)
|
Parameter |
Min. |
Typical |
Max. |
|
|
Field Measurement Range |
-8 Gauss |
|
+8 Gauss |
|
|
Gain at 200 cycle counts * |
|
45 counts / µT |
|
|
|
Linearity over ±200 µT |
|
0.6% |
1.0 |
|
|
Noise at 200 cycle counts * |
30 nT |
|||
|
Data Rate at 200 cycle counts *♦ |
|
150 Hz |
|
|
|
DC Supply Voltage |
1.6 V |
3.3 V |
3.6 V |
|
|
Average Current at 12 Hz and 200 cycle counts) |
0.25 mA |
|
||
|
DC Resistance vs Temperature |
|
0.4% / C |
||
|
Temperature Range - Operation |
–40ºC |
|
85ºC |
|
|
Temperature Range - Storage |
–40ºC |
|
85ºC |
|
|
Size |
Sen-XY Sen-Z p/n 13070 Sen-Z p/n 13101 3DMagIC |
|
6.0 x 2.1 x 2.2 mm 3.0 x 3.0 x 5.75 mm 3.9 x 3.0 x 6.35 mm 5.0 x 5.0 x 0.9 mm |
|
