Part A
ADIS16405BMLZ
ADI公司
- Lifecycle
- Active
- Stock
- 6317 件
- Package
- Module
- Series
- 運動感測器-IMU（慣性量測單元）
Replacement verdict
Compatible functional replacement candidate
The ADIS16488BMLZ and ADIS16405BMLZ are both tactical-grade inertial measurement units from the Analog Devices iSensor family, sharing a common 24-pin module footprint and SPI interface, but they differ in sensor complement, dynamic range, and bias stability. The ADIS16488BMLZ integrates a triaxial gyroscope, accelerometer, and magnetometer with wider measurement ranges and tighter in-run bias stability, while the ADIS16405BMLZ offers a comparable triaxial sensor set with narrower ranges and lower bandwidth. Because the two devices are pin-compatible and functionally aligned in interface and form factor, the ADIS16488BMLZ can serve as a higher-performance functional replacement for the ADIS16405BMLZ, provided the host system validates range scaling, output data rate configuration, and register-level differences before deployment.
Package and Pinout
High match
Digital Interface
High match
Sensor Dynamic Range
Validation required
Bias Stability and Bandwidth
Validation required
Parts at a glance
Part B
ADIS16488BMLZ
ADI公司
- Lifecycle
- Active
- Stock
- 6151 件
- Package
- Module
- Series
- 運動感測器-IMU（慣性量測單元）
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADIS16488BMLZ | ADIS16405BMLZ | Why it matters |
|---|---|---|---|
| Gyroscope Dynamic Range | ±450°/sec | ±300°/sec | Defines the maximum angular rate the gyroscope can measure before saturation; a higher range suits faster-rotating platforms. |
| Accelerometer Dynamic Range | ±18 g | ±18 g | Sets the maximum acceleration measurable without clipping; identical here, so both handle the same shock/vibration envelope. |
| Magnetometer | Not included | Tri-axis, ±2.5 gauss | A magnetometer enables heading/compass reference; its absence in one part means it cannot substitute where magnetic sensing is required. |
| Barometric Pressure Sensor | Included (10 to 1200 mbar) | Not included | An integrated barometer provides altitude information; only one device offers this, affecting altitude-aiding applications. |
| Gyroscope Bias Stability | 6 °/hr | 25 °/hr | Lower bias instability yields better long-term attitude accuracy; the tighter spec part is preferable for precision navigation. |
| Gyroscope Angle Random Walk | 0.3 °/√hr | 2.0 °/√hr | Represents short-term noise; lower ARW improves integration accuracy over short intervals. |
| Accelerometer Bias Stability | 0.1 mg | 0.2 mg | Affects velocity and tilt accuracy; the lower value gives more stable acceleration measurements. |
| Output Data Rate (Sample Rate) | Up to 2460 SPS | Up to 819 SPS | Higher sample rates support faster control loops and wider bandwidth in dynamic applications. |
| Supply Voltage | 3.0 V to 3.6 V | 4.75 V to 5.25 V | Different supply rails mean the parts are not drop-in compatible without power-supply redesign. |
| Operating Temperature Range | -40 °C to +105 °C | -40 °C to +85 °C | Wider temperature range allows operation in harsher environments; the extended-range part is more robust. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADIS16405BMLZ | ADIS16488BMLZ |
|---|---|---|
| Series | iMEMS®, iSensor™ | iMEMS®, iSensor™ |
| Part Status | Obsolete | Active |
| Sensor Type | Accelerometer, Gyroscope, Magnetometer, 9 Axis | Accelerometer, Gyroscope, Magnetometer, 9 Axis |
| Output Type | SPI | SPI |
| Operating Temperature | -40°C ~ 105°C (TA) | -40°C ~ 85°C (TA) |
Frequently asked questions
What are the primary functional differences between the ADIS16488BMLZ and the ADIS16405BMLZ?
The ADIS16488BMLZ is a tactical-grade ten-degree-of-freedom inertial sensor that integrates a triaxial gyroscope, triaxial accelerometer, triaxial magnetometer, and a barometric pressure sensor. The ADIS16405BMLZ is a six-degree-of-freedom inertial sensor that integrates a triaxial gyroscope, triaxial accelerometer, and triaxial magnetometer, but does not include a barometric pressure sensor.
Are the ADIS16488BMLZ and ADIS16405BMLZ pin-to-pin compatible?
No. Both devices are supplied in a 24-lead module package with a similar footprint, but the ADIS16488BMLZ includes additional signal and power connections for the barometric pressure sensor and additional interface features. The pin assignments and interface configurations differ, so they are not directly interchangeable without verifying the PCB layout against the respective datasheets.
How do the gyroscope specifications compare between the two devices?
The ADIS16488BMLZ gyroscope offers a dynamic range of ±450°/sec with a bias stability of approximately 6°/hr and an angular random walk of about 0.3°/√hr. The ADIS16405BMLZ gyroscope offers a dynamic range of ±350°/sec with a bias stability of approximately 25°/hr and an angular random walk of about 2.0°/√hr. The ADIS16488BMLZ therefore provides higher performance for precision attitude and navigation applications.
How do the accelerometer specifications compare between the two devices?
The ADIS16488BMLZ accelerometer provides a dynamic range of ±18 g with a bias stability of approximately 0.1 mg. The ADIS16405BMLZ accelerometer provides a dynamic range of ±18 g with a bias stability of approximately 0.2 mg. Both devices cover the same measurement range, but the ADIS16488BMLZ offers tighter bias stability.
Do both devices include a magnetometer, and how do their magnetometer specifications compare?
Yes, both devices integrate a triaxial magnetometer. The ADIS16488BMLZ magnetometer provides a dynamic range of ±2.5 gauss with a resolution of approximately 0.5 milligauss. The ADIS16405BMLZ magnetometer provides a dynamic range of ±2.5 gauss with a resolution of approximately 0.5 milligauss. The magnetometer performance is comparable between the two devices.
What communication interface do the ADIS16488BMLZ and ADIS16405BMLZ use?
Both devices use a Serial Peripheral Interface (SPI) for configuration and data output. The ADIS16488BMLZ supports SPI clock rates up to 2 MHz, while the ADIS16405BMLZ supports SPI clock rates up to 2 MHz. Both devices also provide a data-ready signal and support burst read modes for efficient data acquisition.
What are the operating voltage and temperature range specifications for both devices?
Both the ADIS16488BMLZ and ADIS16405BMLZ operate from a single 3.0 V to 3.6 V supply and are specified for an operating temperature range of −40°C to +85°C. These specifications are common to both modules and are suitable for industrial and tactical applications.
Which device is more suitable for navigation-grade applications requiring barometric altitude data?
The ADIS16488BMLZ is the appropriate choice because it integrates a barometric pressure sensor in addition to the inertial and magnetic sensors, enabling altitude and pressure measurements within a single module. The ADIS16405BMLZ does not include a barometric pressure sensor, so it cannot provide barometric altitude data without an external sensor.