Overview
The IIS3DHHC, part number IIS3DHHCTR, is an ultra-low noise, high-stability three-axis linear accelerometer produced by STMicroelectronics. This device is designed to provide high-precision measurements of acceleration in three axes (X, Y, Z) with a full scale of ±2.5 g. The accelerometer uses a dedicated micromachining process to manufacture the sensing element on silicon wafers and a CMOS process for the IC interface, ensuring a high level of integration and stability. It communicates through an SPI 4-wire digital interface and is available in a high-performance ceramic cavity land grid array (CC LGA) package, operating within a temperature range of -40 °C to +85 °C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Full Scale | ±2.5 g | - |
| Noise Performance | 45 µg/√Hz | - |
| Sensitivity Change vs. Temperature | <0.4 mg/°C | - |
| Data Output Resolution | 16-bit | - |
| Interface | SPI 4-wire digital output | - |
| FIFO Depth | 32 levels | - |
| Temperature Sensor Resolution | 12-bit | - |
| Operating Temperature Range | -40 °C to +85 °C | - |
| Package Type | CC LGA-16 (5 x 5 x 1.7 mm) | - |
| Supply Voltage | 1.71 to 3.6 V | V |
| Supply Current | 2.5 to 5 mA | mA |
Key Features
- 3-axis, ±2.5 g full-scale acceleration measurement
- Ultra-low noise performance: 45 µg/√Hz
- Excellent stability over temperature (<0.4 mg/°C) and time
- 16-bit data output
- SPI 4-wire digital output interface
- Embedded FIFO (depth 32 levels)
- Embedded temperature sensor with 12-bit temperature data output
- High shock survivability
- Extended operating temperature range (-40 °C to +85 °C)
- ECOPACK, RoHS, and “Green” compliant
Applications
- Precision inclinometer
- Antenna and platform pointing and leveling
- Leveling instruments
- Communications equipment
- Computers and peripherals
- Industrial applications
Q & A
- What is the full scale of the IIS3DHHC accelerometer?
The full scale of the IIS3DHHC accelerometer is ±2.5 g.
- What is the noise performance of the IIS3DHHC?
The noise performance of the IIS3DHHC is 45 µg/√Hz.
- What type of interface does the IIS3DHHC use?
The IIS3DHHC uses an SPI 4-wire digital output interface.
- Does the IIS3DHHC have an embedded temperature sensor?
Yes, the IIS3DHHC has an embedded temperature sensor with 12-bit temperature data output.
- What is the operating temperature range of the IIS3DHHC?
The operating temperature range of the IIS3DHHC is -40 °C to +85 °C.
- Is the IIS3DHHC compliant with environmental standards?
Yes, the IIS3DHHC is ECOPACK, RoHS, and “Green” compliant.
- What type of package is the IIS3DHHC available in?
The IIS3DHHC is available in a high-performance ceramic cavity land grid array (CC LGA) package.
- What is the supply voltage range for the IIS3DHHC?
The supply voltage range for the IIS3DHHC is 1.71 to 3.6 V.
- Does the IIS3DHHC have high shock survivability?
Yes, the IIS3DHHC has high shock survivability.
- What are some common applications of the IIS3DHHC?
The IIS3DHHC is commonly used in precision inclinometers, antenna and platform pointing and leveling, leveling instruments, communications equipment, computers and peripherals, and industrial applications.
