ICM-42688-P - 6-Axis MEMS IMU with 2KB FIFO | TDK InvenSense
부품 번호: ICM-42688-P ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $6.5 | $6.50 |
| 10 | $5.85 | $58.50 |
| 100 | $5.2 | $520.00 |
| 500 | $4.68 | $2,340.00 |
| 1,000 | $4.16 | $4,160.00 |
ICM-42688-P 개요
An IMU (Inertial Measurement Unit) is a sensor that measures angular rate and linear acceleration using gyroscopes and accelerometers. The ICM-42688-P combines these into a single package, providing high accuracy and low noise for motion tracking. IMUs are essential in applications requiring orientation and movement detection, such as flight controllers, wearable devices, and navigation systems. The ICM-42688-P is part of the broader category of motion sensors, which includes accelerometers, gyroscopes, and magnetometers, and is a key component in the sensor fusion hierarchy.
Key features include a gyroscope noise density of 2.8 mdps/√Hz, an accelerometer noise density of 70 µg/√Hz, and a programmable output data rate up to 32 kHz for the gyroscope and 32 kHz for the accelerometer. The device offers a 2 kB FIFO to reduce bus traffic and system power consumption, and supports a wide supply voltage range of 1.71 V to 3.6 V. It also includes programmable interrupts and a digital motion processor (DMP) for advanced motion processing.
The ICM-42688-P utilizes advanced MEMS technology with a low-power architecture, achieving a typical current consumption of 0.9 mA in low-noise mode and 0.45 mA in low-power mode. The device features a temperature range of -40°C to +85°C and is RoHS compliant. Its small footprint and low power make it ideal for battery-powered and space-constrained designs.
Typical applications include drone flight controllers, where the ICM-42688-P provides the low noise and high output rate required for stable flight; robotics, for precise motion control and orientation sensing; and AR/VR headsets, for accurate head tracking. The device is also used in industrial monitoring and wearable health devices.
When designing with the ICM-42688-P, ensure proper PCB layout with adequate decoupling capacitors on the power supply pins and careful routing of the I2C/SPI lines to minimize noise. The device supports both I2C and SPI, allowing flexibility in system integration.
드롭인 대체품: ICM-42688-P — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: ICM-42688-P (동일 폼 팩터 및 풋프린트) — 차이점: Accelerometer Noise Density, Gyroscope Noise Density, Interface, Package.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
BMI270
✓ 재고 있음
$2.1 / 개
데이터시트 보기 →BMI088
✓ 재고 있음
$7.2 / 개
데이터시트 보기 →LSM6DS3TR-C
✓ 재고 있음
$0.875 / 개
데이터시트 보기 →ICM-42688-V
📋 참조 대체품 (카탈로그에 없음)
ICM-42688-PC
📋 참조 대체품 (카탈로그에 없음)
ISM330DHCX
📋 참조 대체품 (카탈로그에 없음)
ICM-42688-P 최대 정격 & 전기적 특성
| 센서 유형 | Accelerometer, Gyroscope, 6 Axis |
| 패키지 | 14-pin LGA, 2.5 x 3.0 x 0.91 mm |
| 인터페이스 | I2C, SPI, I3C |
| Gyroscope Full Scale Range | ±15.5 dps to ±2000 dps |
| Accelerometer Full Scale Range | ±2 g to ±16 g |
| Gyroscope Noise Density | 2.8 mdps/√Hz |
| Accelerometer Noise Density | 70 µg/√Hz |
| Output Data Rate (Gyro) | Up to 32 kHz |
| Output Data Rate (Accel) | Up to 32 kHz |
| FIFO Size | 2 kB |
| 공급 전압 | 1.71 V to 3.6 V |
| Current Consumption (Low-Noise Mode) | 0.9 mA |
| Current Consumption (Low-Power Mode) | 0.45 mA |
| 동작 온도 | -40°C to +85°C |
| RoHS | Compliant |
ICM-42688-P 핀 구성
| 핀 1 | VDD — Power supply (1.71V to 3.6V) |
| 핀 2 | GND — Ground |
| 핀 3 | SCL/SPC — I2C clock or SPI clock |
| 핀 4 | SDA/SDI — I2C data or SPI data in |
| 핀 5 | ADO/SDO — I2C address select or SPI data out |
| 핀 6 | CS — Chip select (active low) |
| 핀 7 | INT1 — Interrupt 1 |
| 핀 8 | INT2 — Interrupt 2 |
| 핀 9 | RESV — Reserved, connect to GND |
| 핀 10 | VDDIO — I/O supply voltage |
| 핀 11 | GND — Ground |
| 핀 12 | GND — Ground |
| 핀 13 | GND — Ground |
| 핀 14 | GND — Ground |
일반적인 애플리케이션
ICM-42688-P 적합 용도: 6 애플리케이션s: Drone Flight Controllers, Robotics, AR/VR Headsets, Industrial Monitoring, Wearable Health Devices, Navigation Systems.
Drone Flight Controllers
The ICM-42688-P is ideal for drone flight controllers due to its low noise density (2.8 mdps/√Hz gyro) and high output data rate (up to 32 kHz), which enable precise attitude estimation and stable flight. Its 2 kB FIFO reduces bus traffic, allowing the flight controller to read sensor data efficiently. The device's small 2.5 x 3.0 mm package fits compact drone designs, and its low power consumption (0.9 mA) extends battery life. According to a 2026 UAV model blog, the ICM-42688-P is the preferred gyro for Betaflight 4.5+ builds.
추천
Robotics
In robotics, the ICM-42688-P provides precise motion sensing for orientation and movement control. Its low noise and high ODR enable accurate feedback for balance and navigation algorithms. The device's ultralow-power wake-on-motion feature allows the robot to remain in a low-power state until movement is detected, conserving battery life. The 2 kB FIFO helps manage sensor data efficiently, reducing processor load. The ICM-42688-P's wide supply voltage range (1.71 V to 3.6 V) makes it compatible with various robot power systems.
추천
AR/VR Headsets
The ICM-42688-P is well-suited for AR/VR headsets, where accurate head tracking is critical. Its low noise density and high ODR (up to 32 kHz) enable smooth and responsive motion tracking, reducing motion sickness. The device's small package and low power consumption are ideal for wearable devices. The 2 kB FIFO allows efficient data transfer to the host processor, minimizing latency. According to the TDK datasheet, the ICM-42688-P is designed for high-performance motion tracking in consumer electronics.
추천
Industrial Monitoring
For industrial monitoring, the ICM-42688-P provides reliable vibration and motion sensing for predictive maintenance and equipment health monitoring. Its wide temperature range (-40°C to +85°C) and low noise ensure accurate measurements in harsh environments. The device's programmable interrupts can trigger alerts on threshold crossings, reducing the need for continuous polling. The 2 kB FIFO helps manage data bursts, and the I2C/SPI interfaces allow easy integration with industrial controllers.
추천
Wearable Health Devices
The ICM-42688-P is suitable for wearable health devices, such as fitness trackers and smartwatches, due to its low power consumption (0.45 mA in low-power mode) and small footprint. It can detect motion and orientation for activity tracking and fall detection. The ultralow-power wake-on-motion feature allows the device to remain in a low-power state until movement is detected, extending battery life. The 2 kB FIFO reduces the frequency of host processor wake-ups, further saving power.
추천
Navigation Systems
In navigation systems, the ICM-42688-P provides inertial sensing for dead reckoning and sensor fusion with GPS. Its low noise and high ODR enable accurate velocity and position estimation. The device's 2 kB FIFO allows efficient data collection, and its programmable interrupts can synchronize with external sensors. The wide supply voltage range and low power consumption make it suitable for portable navigation devices. According to the TDK datasheet, the ICM-42688-P is designed for high-performance motion tracking.
추천
추천 제품 요약
엔지니어링 참조 데이터: ICM-42688-P — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | ICM-42688-V | ICM-42688-PC | BMI270 | BMI088 | LSM6DS3TR-C | ISM330DHCX |
|---|---|---|---|---|---|---|---|
| Package | 14-pin LGA | 14-pin LGA | 14-pin LGA | 14-pin LGA | 16-pin LGA | 14-pin LGA | 14-pin LGA |
| Brand | TDK InvenSense | TDK InvenSense | Tokmas | Bosch | Bosch | STMicroelectronics | STMicroelectronics |
주요 차별점
- Lower gyroscope noise density (vs BMI270)
- Higher output data rate (vs BMI270)
- I3C interface support (vs LSM6DS3TR-C)
설계 노트
Place decoupling capacitors (100 nF and 1 µF) close to the VDD and VDDIO pins to ensure stable power supply. Use a solid ground plane under the sensor to minimize noise. Route I2C/SPI lines with controlled impedance and keep them short to reduce signal integrity issues. According to the TDK datasheet, proper layout is critical for achieving the specified noise performance.
The ICM-42688-P operates from 1.71V to 3.6V. Ensure the supply voltage is within this range and that VDDIO is set to the appropriate level for the host interface. In low-power mode, the device consumes 0.45 mA, but during startup or high ODR operation, current can spike. Use a low-dropout regulator with adequate headroom to maintain stable voltage.
Avoid placing the sensor near heat sources or high-frequency components that can cause thermal drift or electrical noise. The ICM-42688-P is temperature sensitive and can drift if not properly isolated. Also, ensure the I2C address is correctly configured via the ADO pin to avoid address conflicts. According to SlimeVR docs, the ICM-42688 is temperature sensitive and drifts quickly, so thermal management is essential.
규정 준수 정보
RoHS compliant per TDK datasheet. Other compliance info not specified in provided data.
