AIS2IH - 3-Axis Accelerometer, 2g/4g/8g/16g | STMicroelectronics
부품 번호: AIS2IH ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $2.5 | $2.50 |
| 10 | $2.25 | $22.50 |
| 100 | $2 | $200.00 |
| 500 | $1.8 | $900.00 |
| 1,000 | $1.6 | $1,600.00 |
AIS2IH 개요
An accelerometer is a sensor that measures proper acceleration (the rate of change of velocity) along one or more axes. The AIS2IH is a MEMS (Micro-Electro-Mechanical Systems) capacitive accelerometer, which detects changes in capacitance caused by the displacement of a proof mass under acceleration. It belongs to the broader category of inertial sensors, which also includes gyroscopes and magnetometers. In a typical system hierarchy, the accelerometer is a key component of an inertial measurement unit (IMU), which is used in applications such as vehicle stability control, industrial vibration monitoring, and tilt sensing.
Key features of the AIS2IH include a selectable full-scale range of ±2g/±4g/±8g/±16g, a low noise density of 90 µg/√Hz, and a wide operating temperature range of -40°C to +105°C. The device supports both I2C and SPI digital interfaces, with a maximum SPI clock frequency of 10 MHz and I2C clock frequency of 400 kHz. It also features a 32-level FIFO buffer, an embedded temperature sensor, and a programmable interrupt generator for motion detection, free-fall detection, and 6D orientation detection.
The AIS2IH is built using ST's advanced MEMS process, which ensures high reliability and long-term stability. The device includes a self-test capability that allows the user to verify the functionality of the sensing element and the signal chain. The low power consumption, typically 180 µA in normal mode and 1.6 µA in power-down mode, makes it ideal for battery-powered applications. The device also supports a wide range of output data rates from 1 Hz to 1000 Hz, allowing the user to trade off power consumption against measurement resolution.
Typical applications include automotive airbag systems, electronic stability control, industrial vibration monitoring, and tilt sensing for leveling equipment. The AIS2IH is also suitable for IoT devices that require motion detection and activity monitoring. Its small footprint and low power consumption make it easy to integrate into space-constrained designs.
When designing with the AIS2IH, it is important to ensure proper PCB layout to minimize mechanical stress on the sensor. The device should be placed away from high-frequency switching components and vibration sources. Additionally, the I2C/SPI interface lines should be kept short and properly terminated to avoid signal integrity issues.
드롭인 대체품: AIS2IH — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: AIS2IH (동일 폼 팩터 및 풋프린트) — 차이점: FIFO Buffer, Interface, Noise Density, Operating Temperature, Output Data Rate.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
LIS2DH12TR
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$0.67 / 개
데이터시트 보기 →AIS2DW12
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
LIS2DS12
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
AIS2IH 최대 정격 & 전기적 특성
| Full-Scale Range | ±2g, ±4g, ±8g, ±16g |
| 인터페이스 | I2C, SPI |
| 공급 전압 | 1.71 V to 3.6 V |
| Current Consumption (Normal Mode) | 180 µA |
| Current Consumption (Power-Down) | 1.6 µA |
| Output Data Rate | 1 Hz to 1000 Hz |
| 노이즈 밀도 | 90 µg/√Hz |
| 동작 온도 | -40°C to +105°C |
| 패키지 | 12-pin LGA (2x2 mm) |
| 실장 유형 | Surface Mount |
| FIFO Buffer | 32-level |
| Temperature Sensor | Integrated |
| Self-Test | Yes |
| RoHS 상태 | Compliant |
| AEC-Q100 | Qualified |
AIS2IH 핀 구성
| 핀 1 | VDD — Power supply |
| 핀 2 | GND — Ground |
| 핀 3 | SCL/SPC — I2C clock / SPI clock |
| 핀 4 | SDA/SDI — I2C data / SPI data in |
| 핀 5 | SDO/SA0 — SPI data out / I2C address select |
| 핀 6 | CS — Chip select |
| 핀 7 | INT1 — Interrupt 1 |
| 핀 8 | INT2 — Interrupt 2 |
| 핀 9 | NC — Not connected |
| 핀 10 | NC — Not connected |
| 핀 11 | NC — Not connected |
| 핀 12 | NC — Not connected |
일반적인 애플리케이션
AIS2IH 적합 용도: 6 애플리케이션s: Automotive Airbag Systems, Industrial Vibration Monitoring, Tilt Sensing for Leveling Equipment, Electronic Stability Control (ESC), IoT Motion Detection, Wearable Activity Monitoring.
Automotive Airbag Systems
The AIS2IH is used in automotive airbag systems to detect sudden deceleration and trigger airbag deployment. Its wide temperature range (-40°C to +105°C) and AEC-Q100 qualification ensure reliable operation in harsh automotive environments. The accelerometer's high sensitivity and low noise density (90 µg/√Hz) enable accurate crash detection. In a typical airbag system, the AIS2IH is mounted on the vehicle's chassis and continuously monitors acceleration. When a threshold is exceeded, the device generates an interrupt that triggers the airbag control unit. The device's self-test capability allows periodic verification of the sensor's functionality, ensuring system integrity. The low power consumption (180 µA) is not critical in this application, but the device's robustness and long-term stability are essential.
추천
Industrial Vibration Monitoring
The AIS2IH is ideal for industrial vibration monitoring, where it detects abnormal vibrations in machinery to predict maintenance needs. Its low noise density (90 µg/√Hz) and wide bandwidth (up to 1000 Hz) allow it to capture high-frequency vibrations. The device's I2C/SPI interface enables easy integration with microcontrollers. In a typical setup, the AIS2IH is mounted on a motor or pump, and its output is analyzed to detect bearing wear or imbalance. The 32-level FIFO buffer helps manage data flow, reducing the host processor's workload. The device's wide operating temperature range (-40°C to +105°C) makes it suitable for industrial environments. The low power consumption is beneficial for battery-powered wireless sensors.
추천
Tilt Sensing for Leveling Equipment
The AIS2IH is used in tilt sensing applications, such as leveling equipment and construction tools. Its high resolution and low noise allow precise angle measurements. The device's selectable full-scale range (±2g to ±16g) enables optimization for different tilt angles. In a typical application, the AIS2IH is mounted on a platform, and its output is used to calculate the tilt angle using trigonometric functions. The device's low power consumption (180 µA) is ideal for battery-powered tools. The integrated temperature sensor can be used for temperature compensation, improving accuracy. The device's small package (2x2 mm) allows integration into compact designs.
추천
Electronic Stability Control (ESC)
The AIS2IH is used in electronic stability control systems to detect vehicle dynamics and assist in maintaining control. Its high sensitivity and low noise are critical for accurate yaw rate and lateral acceleration measurements. The device's AEC-Q100 qualification ensures reliability in automotive environments. In an ESC system, the AIS2IH is part of an inertial measurement unit that includes a gyroscope. The accelerometer data is fused with gyroscope data to estimate the vehicle's state. The device's wide temperature range (-40°C to +105°C) ensures operation in extreme conditions. The self-test feature allows periodic verification of the sensor's functionality.
추천
IoT Motion Detection
The AIS2IH is used in IoT devices for motion detection, such as smart home sensors and wearable devices. Its low power consumption (180 µA in normal mode, 1.6 µA in power-down) is ideal for battery-powered devices. The device's small package (2x2 mm) allows integration into compact designs. In a typical IoT application, the AIS2IH is used to detect motion and wake up the system from sleep mode. The device's programmable interrupt generator can be configured to trigger on motion, free-fall, or 6D orientation changes. The I2C/SPI interface enables easy connection to microcontrollers. The device's wide supply voltage range (1.71V to 3.6V) allows direct connection to common battery voltages.
추천
Wearable Activity Monitoring
The AIS2IH is used in wearable devices to monitor physical activity, such as step counting and gesture recognition. Its low power consumption and small size make it ideal for wearables. The device's selectable full-scale range allows optimization for different activity levels. In a typical wearable, the AIS2IH is used to detect steps, which are counted by analyzing the acceleration pattern. The device's FIFO buffer helps reduce power consumption by allowing the microcontroller to sleep while data is collected. The device's wide supply voltage range (1.71V to 3.6V) is compatible with coin cell batteries. The integrated temperature sensor can be used for skin temperature monitoring.
추천
추천 제품 요약
엔지니어링 참조 데이터: AIS2IH — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | LIS2DH12 | AIS2DW12 | LIS2DS12 | ADXL345 | BMI160 |
|---|---|---|---|---|---|---|
| Package | 12-pin LGA (2x2 mm) | 12-pin LGA (2x2 mm) - same | 12-pin LGA (2x2 mm) - same | 12-pin LGA (2x2 mm) - same | 14-pin LGA (3x5 mm) - different | 16-pin LGA (2.5x3 mm) - different |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | Analog Devices | Bosch Sensortec |
| Full-Scale Range | ±2g, ±4g, ±8g, ±16g | ±2g, ±4g, ±8g, ±16g | ±2g, ±4g, ±8g, ±16g | ±2g, ±4g, ±8g, ±16g | ±2g, ±4g, ±8g, ±16g | ±2g, ±4g, ±8g, ±16g |
| Supply Voltage | 1.71V to 3.6V | 1.71V to 3.6V | 1.71V to 3.6V | 1.71V to 3.6V | 2.0V to 3.6V | 1.71V to 3.6V |
| Current Consumption (Normal) | 180 µA | 180 µA | 150 µA | 180 µA | 140 µA | 180 µA |
| Noise Density | 90 µg/√Hz | 90 µg/√Hz | 90 µg/√Hz | 90 µg/√Hz | 110 µg/√Hz | 130 µg/√Hz |
| Operating Temperature | -40°C to +105°C | -40°C to +85°C | -40°C to +105°C | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C |
| AEC-Q100 | Qualified | Not qualified | Qualified | Not qualified | Not qualified | Not qualified |
주요 차별점
- Automotive-grade qualification (vs LIS2DH12)
- Wider temperature range (vs ADXL345)
- Lower noise density (vs BMI160)
설계 노트
Place the AIS2IH away from high-frequency switching components and vibration sources to minimize mechanical stress and electrical noise. Use a solid ground plane under the sensor and ensure proper decoupling with a 100 nF capacitor close to the VDD pin. Keep I2C/SPI traces short and avoid routing them near high-current paths.
The AIS2IH is a MEMS sensor that is sensitive to mechanical stress. Avoid placing it near board edges or mounting holes where PCB flexure can occur. Use a soft mounting technique if the sensor is subject to high vibration. Ensure the solder pads are properly sized to avoid stress on the package.
Do not exceed the absolute maximum ratings, including supply voltage of 3.6V. Ensure the I2C/SPI interface lines are properly terminated to avoid signal integrity issues. The self-test feature should be used during production to verify sensor functionality. Also, note that the AIS2IH is not a drop-in replacement for all accelerometers due to package differences.
규정 준수 정보
AIS2IH is AEC-Q100 qualified and RoHS compliant per STMicroelectronics product page.
