The TDK InvenSense ICM-20948 is a highly integrated 9-axis MEMS MotionTracking® IMU combining a 3-axis gyroscope, 3-axis accelerometer, 3-axis magnetometer, and an embedded Digital Motion Processor™ (DMP). It is housed in a compact 3 × 3 × 1mm, 24-pin QFN package for wearables, IoT devices, drones, and embedded motion-sensing systems.
The 3-axis gyroscope features programmable full-scale ranges of ±250, ±500, ±1000, and ±2000dps, with integrated 16-bit ADCs and typical noise density of 0.015dps/√Hz. The accelerometer supports programmable ranges of ±2g, ±4g, ±8g, and ±16g, with typical noise density of 230µg/√Hz.
The integrated AK09916 3-axis magnetometer offers a ±4900µT full-scale range, 16-bit output resolution, 0.15µT/LSB sensitivity, and up to 100Hz output data rate. The embedded DMP can process motion data and reduce processing load on the host processor.
Host communication is available through I²C up to 400kHz or SPI up to 7MHz. The device also includes an auxiliary I²C bus, 4KB FIFO, programmable digital filters, a digital temperature sensor, programmable interrupts, and FSYNC support.
The official datasheet specifies a 1.71V to 3.6V VDD range and 1.71V to 1.95V VDDIO range. Typical supply current is approximately 3.11mA in 9-axis low-noise mode with the DMP disabled and the compass operating continuously. Main-device operating temperature is -40°C to +85°C.
For lifecycle status, TDK’s current Product Center lists the ICM-20948 as Production (NRND), while the current InvenSense product page displays an EOL label. Buyers planning new or long-life designs should therefore verify the latest supply status and PCN information. TDK currently lists 5,000 pieces per reel.
Key Features:
- Manufacturer: TDK / InvenSense
- Part Number: ICM-20948
- Device Type: 9-Axis MEMS IMU
- 3-Axis Gyroscope
- 3-Axis Accelerometer
- 3-Axis Magnetometer
- Embedded DMP
- Gyroscope FSR: ±250 / ±500 / ±1000 / ±2000dps
- Gyroscope Noise: 0.015dps/√Hz typical
- Accelerometer FSR: ±2 / ±4 / ±8 / ±16g
- Accelerometer Noise: 230µg/√Hz typical
- Magnetometer FSR: ±4900µT
- Magnetometer Resolution: 16-bit
- Magnetometer Sensitivity: 0.15µT/LSB
- Magnetometer ODR: Up to 100Hz
- FIFO: 4KB
- Host Interface: I²C / SPI
- I²C Speed: Up to 400kHz
- SPI Speed: Up to 7MHz
- Auxiliary I²C Interface
- VDD: 1.71V to 3.6V
- Datasheet VDDIO: 1.71V to 1.95V
- Typical 9-Axis Current: 3.11mA
- Operating Temperature: -40°C to +85°C
- Package: 24-Pin QFN
- Package Size: 3 × 3 × 1mm
- AEC-Q100: No
- Reel Quantity: 5,000 pcs
- RoHS / Pb-Free / Halogen-Free
- Lifecycle: Production (NRND) in TDK Product Center; EOL label on InvenSense product page.
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