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BMA423
+物料清單ACCEL 2-16G I2C/SPI 12LGA
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製造商博世感測器科技
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製造商部分 #BMA423
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規格
| 屬性 | 價值 |
| Part Status | Obsolete |
| Base Product Number | BMA423 |
| Type | Digital |
| Axis | X, Y, Z |
| Acceleration Range | ±2g, 4g, 8g, 16g |
| Bandwidth | 8Hz ~ 1.6kHz |
| Output Type | I2C, SPI |
| Voltage - Supply | 1.62V ~ 3.6V |
| Features | Adjustable Bandwidth, Selectable Low Pass Filter |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package | 12-WFLGA |
| Supplier Device Package | 12-LGA (2x2) |
| Packaging | Tape & Reel (TR) |
概述
Description
Equivalent
Features
- 3-axis accelerometer with ultra-low power consumption and multiple power modes
- Programmable full-scale range: ±2/4/8/16 g
- Configurable output data rate (ODR) from low Hz up to high rates (1 kHz typical)
- 16-bit digital output with high-resolution measurement
- I2C and SPI digital interfaces; flexible interrupt routing
- Rich interrupt engine: data-ready, wake-up, orientation, tilt/inclination, tap/gesture, activity/step events, and more
- Built-in motion processing: pedometer, activity recognition/classification, tilt/inclination detection, wake-up motion
- FIFO/buffer support for event logging
- On-chip temperature sensor for compensation
- Temperature range suitable for wearables and consumer devices (-40°C to ~85°C)
- Small package (compact, low footprint) suitable for wearables and IoT devices
Note: exact numbers (current consumption, ODR limits, and features like specific tap gestures) can vary by revision; consult the latest datasheet for precise specs.
Pinout
- Function: Bosch BMA423 is a 3-axis MEMS accelerometer with a digital interface (I2C or SPI). It provides acceleration data for X/Y/Z, multiple power modes, and two interrupt outputs (INT1/INT2) for motion features and wake-up/tilt/motion-detection events. Requires VDD/VDDIO and GND; includes the usual I2C/SPI pins (SCL/SDA or SCK/SI/SO with CS) and configuration/test pins.
Manufacturer
- What kind of company: A German multinational engineering and technology company that develops MEMS sensors and sensing solutions for mobile devices, wearables, automotive, and consumer electronics.
Application
- Wearables (fitness bands, smartwatches) for activity recognition, step counting, motion/tilt detection, and sleep analysis
- Mobile/consumer electronics for motion input, gesture control, and orientation sensing
- Sports and health devices for activity analytics and training feedback
- Smart home/IoT devices for motion sensing, presence detection, and automation
- Gaming, AR/VR accessories and other battery-powered peripherals requiring precise, low-power motion sensing
Package
Frequently Asked Questions
Q: What are the selectable acceleration ranges for the BMA423?
A: The BMA423 supports ±2g, ±4g, ±8g, and ±16g ranges, configurable via I2C/SPI registers for various motion sensitivity.
Q: Can the BMA423 operate with a 1.8V logic supply?
A: Yes, its supply voltage range is 1.62V to 3.6V, making it fully compatible with 1.8V and 3.3V digital interfaces.
Q: What digital interfaces does the BMA423 support?
A: It supports both I2C and SPI serial interfaces, allowing flexible integration with different microcontrollers or SoCs.
Q: Is the BMA423 suitable for battery-powered wearable devices?
A: Yes, its low voltage operation down to 1.62V and configurable bandwidth (8Hz–1.6kHz) enable power-efficient motion tracking in wearables.
Q: What is the package size of the BMA423?
A: It comes in a 12-LGA (2x2 mm) surface-mount package, ideal for space-constrained PCB designs.
Q: Does the BMA423 include a built-in low-pass filter?
A: Yes, it features a selectable low-pass filter and adjustable bandwidth to reduce noise for precise acceleration data.
