• Compact size: 5.7 x 4.8 x 1.2mm.
• Robust silicon MEMS vibrating ring gyro with low bias instability (12º/hr) and low angular random walk (0.2º/√hr).
• In-plane and orthogonal sensing options (CRM100 and CRM200).
• User-selectable dynamic ranges: 75º/s, 150º/s, 300º/s, and 900º/s (up to 1,000º/s).
• Analogue and Digital (SPI®) output modes.
• User-adjustable bandwidth up to 160Hz.
• Low power consumption (4mA) and high shock/vibration rejection.
• Hermetically sealed ceramic LCC package for temperature and humidity resistance.
• Integral temperature sensor and RoHS compliant.

• Automotive in-car navigation and precision GPS navigation aiding.
• Vehicle yaw, pitch, and roll rate sensing.
• Gesture sensing, motion tracking, and pointing devices.
• Precision agriculture and antenna stabilization.
• Industrial and robotics applications.

The PinPoint® is a single-axis MEMS angular rate sensor capable of measuring angular velocity up to ±1,000º/s. It offers both analogue and digital output modes, selectable by the user. The sensor is available in configurations for in-plane (CRM100) and orthogonal (CRM200) sensing, with additional models (CRM102 and CRM202) for higher angular velocities.

• Measurement range: User-selectable dynamic ranges with an absolute limit of 1,000º/s.
• Sensitivity: Ratiometric for analogue output, with specific scale factors for each dynamic range.
• Bias stability and variation: Low bias instability and minimal variation with temperature.
• Noise: Low rate noise density and angular random walk.
• Environmental: Operating temperature range from -40°C to +85°C, with full specification performance.
• Electrical: Supply voltage range of 2.7V to 3.6V, with low current consumption.

Graphs in the datasheet illustrate typical performance characteristics, including bias error, scale factor error, and noise levels across different temperatures and applied rates.

• Angular velocity and acceleration limits for both powered and unpowered states.
• Linear acceleration limits and electrical ratings, including ESD protection.
• Temperature and humidity conditions for operation and storage.

The startup procedure requires a clean power-up sequence, with the reset pin held low until a stable VDD is applied. The gyroscope's calibration registers are loaded upon release of the reset, allowing the device to establish resonance and function correctly.

The datasheet provides detailed pinout information, including pin functions for both analogue and digital modes. Key pins include MODE_SEL for selecting output mode, and CBIT/SS for initiating built-in tests or serving as the SPI® select line in digital mode.

Bandwidth settings for the analogue output are determined by the value of capacitor C2, with options ranging from 12Hz to 95Hz. For digital output, the bandwidth follows the analogue mode but can be optimized using digital filter algorithms in the host system.

The CRM100 includes a health monitoring system that continuously checks key parameters within the gyro control ASIC. The results are consolidated into a single BIT line to confirm correct operation.

• The calibration data memory is checked for parity at power-up. Any failure results in BIT_Out being set to false.
• Trim and calibration coefficients are verified at power-up to ensure correct conversion into performance settings.
• The MEMS silicon ring is set into oscillation at its resonant frequency. The BIT system monitors the drive from the AGC circuit. If the drive is too high or too low, indicating potential failures, BIT_Out is set to false.
• The angular rate output is checked against a maximum threshold. If the gyro rotates beyond the control loop's capacity, BIT_Out is set to false.
• The balance of the MEMS ring and matching of secondary transducers are monitored. Excess quadrature signal results in BIT_Out being set to false.
• A Commanded Built-In Test (CBIT) can be initiated to test gyro functionality, setting BIT_Out to false during the test.

• The ASIC contains a temperature sensor accessible via the digital interface. It allows system-level thermal compensation using algorithms like linear fits or lookup tables.
• The sensor's sensitivity is 2.75 LSB/°C, with +25°C represented by 60010 ±2010 LSB.

• PinPoint® is a ratiometric sensor, meaning its output is influenced by both angular rate and supply voltage. Noise management is crucial for optimal performance.
• Power supply ripple at frequencies around 22kHz, 66kHz, and 110kHz should be minimized.

• Digital mode is activated by connecting the MODE_SEL input to the positive supply rail.
• The SPI® interface operates in 'Mode 0' as a 'Slave'. Data is transferred in 6-byte messages.
• Early samples with a lot identifier beginning with '1' have a known tri-state limitation.

• Command messages from the Host System consist of 6 bytes, including a command byte and a checksum.
• Status messages from the PinPoint® gyro also consist of 6 bytes, including a status byte and a checksum.

• The digital output mode bandwidth is determined by capacitor C2, with a recommended value of 560pF for optimal ADC performance.
• The recommended data sampling rate is 1kHz, with a SPI® clock frequency of 1MHz.

The gyroscope is available in two configurations for different sensing orientations. It consists of a silicon MEMS ring sensor, pedestal, ASIC, and package base. The MEMS ring is fabricated using a DRIE process and is designed for precise balance and thermal stability. The document explains the operation of the gyroscope, including the role of actuators and transducers in detecting angular velocity.

The gyroscope is housed in a ceramic Package Base with a hermetically sealed Kovar® metal Lid, ensuring excellent electromagnetic compatibility (EMC) and protection against interference. The design includes gold bond wires and electroplated nickel and gold pads for reliable connections.

The gyroscope's ASIC hosts all control circuitry, minimizing noise and enhancing EMC performance. The device's solid-state nature means it has no moving parts other than the ring deflection, contributing to its reliability.

Several patents have been granted or are pending for the PinPoint® gyro sensors, indicating proprietary technology and innovation in its design.

The document provides contact details for Pewatron AG, the distributor, with offices in Switzerland and Germany, and lists various product specialists and sales contacts for different regions and product categories.