NavChip

This miniaturized Inertial Measurement Unit (IMU) is the second evolution of the original and widely successful NavChip that precisely measures angular velocity and linear acceleration.

The NavChip’s robust architecture and advanced signal processing techniques enable a level of performance unmatched in size class. The resulting architecture and patented compensation algorithms are one of a kind and, coupled with its miniature size and environmental ruggedness, make NavChip perfect for small yet demanding applications. Using sophisticated robotic systems, each NavChip undergoes detailed analysis, calibration, and subsequent performance verification over a wide temperature range to assure a highly reliable solution.

The NavChip is especially well-suited for embedded applications where extremely small size, weight, and power consumption are required. It is fully factory-calibrated and temperature compensated over an operating range of -40°C to +85°C.

Alongside the standalone NavChip, an evaluation kit is also available to simplify the evaluation and integration of the NavChip. The NavChip evaluation kit comes with all of the equipment necessary to interface the NavChip to a host processor, through either USB or RS-422. The kit includes a NavChip, a NavChip adapter board, a USB cable, and software tools that allow detailed analysis of the NavChip performance.

  • Unmanned Systems
  • Augmented and Virtual Reality applications
  • Camera & Antenna Stabilization
  • Pedestrian Navigation
  • GPS/INS Integration
  • Aiming & Alignment
  • Fully-compensated Δϴ and ΔV outputs
  • Gyro bias in-run stability 5°/hr
  • Angular random walk 0.18°/√hr
  • Velocity random walk 0.03m/s/√hr
  • Full-scale angular rate of 2000°/s
  • Full-scale acceleration of ± 16g
  • Low power consumption 135mW
  • Factory calibrated bias, scale factor and misalignment (-40°C to +85°C)
  • TTL UART or SPI-compatible data output interfaces
  • Single supply operation 3.25V to 5.5V
  • External sync pin can to synchronize IMU data samples to an external trigger source
  • Small 12.5 x 24.5 x 5.4 mm
  • Lightweight 3 g
Angular Rate
Rate range +/- 2,000º/s
Angular random walk <0.3º/√hr
Noise density 0.005º/s/√Hz
Bias in-run stability 5º/hr
Bandwidth (-3 dB) 250 Hz
Bias accuracy over temperature <+/- 0.4°/s
Scale factor linearity < 0.05%
Linear Acceleration
Accel range +/- 16 g
Velocity random walk 0.05 m/s/√hr
Noise density 83 µg/√Hz
Bias in-run stability <0.1 mg
Bandwidth (-3 dB) 250 Hz
Bias accuracy over temperature <+/- 15 mg
Scale factor linearity < 0.2%
General Data
Output format 3V TTL UART & SPI
Default message format Compensated ΔΘ,ΔV
Supply voltage range 3.25 – 5.5 V
Power consumption 135 mW
Operating temperature range -40ºC to 85ºC
Start-up time < 1s
Weight 3 grams
Dimensions 24.5 mm x 12.5 mm x 5.4 mm
RoHS compliant Yes