Overview
The AD22301 is a single-axis, high-g, iMEMS (Micro-Electro-Mechanical Systems) accelerometer produced by Analog Devices Inc. It is part of the fourth generation ADXL78 family and is designed to offer enhanced performance and lower cost. This accelerometer is particularly suited for automotive safety applications, such as airbag systems, but is also versatile enough for a wide range of other uses.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Sensor Output Full Scale Range | ±37g | - | ±70g | g |
| Power Supply (Vdd) | 3.135 | 3.3 | 3.465 | V |
| Functional Voltage Range | 3.135 | - | 6 | V |
| Supply Current | 0.4 | 0.8 | 2 | mA |
| Temperature Range | -40 | - | 105 | °C |
| Frequency Response | - | - | DC to 400 Hz | Hz |
| Output Drive Current | - | - | Higher Output Drive Current | - |
Key Features
- Complete acceleration measurement system on a single monolithic IC.
- Available in ±37g and ±70g ranges.
- Smallest available package footprint for automotive safety applications.
- Full differential sensor and circuitry for high resistance to EMI/RFI.
- Environmentally robust packaging.
- Complete mechanical and electrical self-test on digital command.
- Output ratiometric to supply.
- High linearity (0.2% of full-scale).
- Low-power consumption (1.3 mA).
- Tight sensitivity tolerance and zero g offset capability.
Applications
The AD22301 is primarily designed for automotive safety applications, such as airbag systems. However, its versatility and robust design make it suitable for a variety of other applications, including crash detection, angle of impact determination, and other high-g acceleration measurement needs.
Q & A
- What is the AD22301 accelerometer used for?
The AD22301 is used primarily in automotive safety applications, such as airbag systems, but it can also be used in other high-g acceleration measurement applications. - What are the available g-ranges for the AD22301?
The AD22301 is available in ±37g and ±70g ranges. - What is the power supply voltage for the AD22301?
The power supply voltage for the AD22301 is 3.3V with a range of 3.135V to 3.465V. - What is the temperature range for the AD22301?
The operating temperature range for the AD22301 is -40°C to 105°C. - Does the AD22301 have self-test capabilities?
Yes, the AD22301 has complete mechanical and electrical self-test capabilities on digital command. - What is the frequency response of the AD22301?
The frequency response of the AD22301 is from DC to 400 Hz. - How much power does the AD22301 consume?
The AD22301 consumes 1.3 mA of power. - Is the AD22301 resistant to EMI/RFI?
Yes, the AD22301 features full differential sensor and circuitry for high resistance to EMI/RFI. - What is the package type of the AD22301?
The AD22301 comes in an 8-pin Leadless Chip Carrier package. - Can the AD22301 be used in harsh environments?
Yes, the AD22301 has environmentally robust packaging, making it suitable for use in harsh environments.
