Part A
ADIS16365BMLZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6623 PCS
- Package
- Module
- Series
- Sensores de Movimento - IMUs (Unidades de Medição Inerícia)
Replacement verdict
Compatible functional replacement candidate
The ADIS16448BMLZ is a higher-performance tactical-grade IMU that can serve as a functional upgrade candidate for the ADIS16365BMLZ in many inertial sensing applications, but it is not a pin-for-pin or software drop-in replacement. The two modules share the same SPI interface family and comparable supply architecture, yet differ in package outline, mechanical mounting, and several key performance specifications. Engineers must validate mechanical fit, register-level firmware compatibility, and dynamic range requirements before substituting the ADIS16448BMLZ for the ADIS16365BMLZ in an existing design.
Package and Footprint
Validation required
Digital Interface
High match
Gyroscope Dynamic Range
Validation required
Supply Voltage
Validation required
Parts at a glance
Part B
ADIS16448BMLZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6833 PCS
- Package
- Module
- Series
- Sensores de Movimento - IMUs (Unidades de Medição Inerícia)
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADIS16365BMLZ | ADIS16448BMLZ | Why it matters |
|---|---|---|---|
| Gyroscope Dynamic Range | ±300 °/s | ±1000 °/s | Determines the maximum angular rate the IMU can measure; a higher range suits high-dynamics motion, while a lower range typically yields better resolution for moderate motion. |
| Accelerometer Dynamic Range | ±18 g | ±18 g | Sets the maximum linear acceleration measurable; matching ranges means similar shock and vibration handling capability. |
| Gyroscope In-Run Bias Stability | 0.015 °/s | 0.007 °/s | Indicates gyro drift over time; lower bias stability improves long-term attitude accuracy and reduces the need for frequent recalibration. |
| Gyroscope Angle Random Walk | 0.3 °/√hr | 0.2 °/√hr | Represents short-term noise in the gyro output; lower ARW gives cleaner integration for attitude estimation. |
| Accelerometer In-Run Bias Stability | 0.1 mg | 0.05 mg | Affects long-term tilt and velocity accuracy; lower accelerometer bias stability improves navigation and stabilization performance. |
| Supply Voltage | 4.75 V to 5.25 V | 3.0 V to 3.6 V | Defines the required power rail; a different supply voltage means the board-level power design must be adapted for direct substitution. |
| Operating Temperature Range | -40 °C to +105 °C | -40 °C to +85 °C | Specifies the environmental envelope; a wider range supports harsher applications and affects reliability margins. |
| Output Data Rate | Up to 819.2 SPS | Up to 1000 SPS | Determines how fast sensor samples are available; higher ODR supports faster control loops and higher-bandwidth motion tracking. |
| Digital Interface | SPI | SPI | Defines the host communication protocol; matching interfaces simplify firmware reuse and board-level integration. |
| Package | 24-lead Module (BMLZ) | 24-lead Module (BMLZ) | Mechanical footprint and pinout compatibility are essential for drop-in replacement without PCB redesign. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADIS16365BMLZ | ADIS16448BMLZ |
|---|---|---|
| Part Status | Active | Obsolete |
| Sensor Type | Accelerometer, Gyroscope, 6 Axis | Accelerometer, Barometric Pressure, Gyroscope, Magnetometer, 9 Axis |
| Output Type | SPI | SPI |
| Operating Temperature | -40°C ~ 105°C (TA) | -40°C ~ 85°C |
| Series | iMEMS®, iSensor™ | - |
Frequently asked questions
What are the primary functional differences between the ADIS16365BMLZ and the ADIS16448BMLZ?
The ADIS16365BMLZ is a six-degree-of-freedom inertial sensor that integrates three gyroscopes and three accelerometers. The ADIS16448BMLZ is a ten-degree-of-freedom tactical-grade inertial measurement unit that adds a triaxial magnetometer and a barometric pressure sensor to the same six-DOF inertial sensing core, providing magnetic heading and altitude-related data in addition to angular rate and acceleration measurements.
Are the ADIS16365BMLZ and ADIS16448BMLZ pin-to-pin and package compatible?
Both devices are supplied in the same 24-lead module package family used across the ADIS1636x and ADIS1644x product lines, but they are not automatically interchangeable. The ADIS16448BMLZ exposes additional signal functions (magnetometer and pressure sensor interfaces) on its connector pins, so the pin assignments and required host interface configuration differ. A direct drop-in substitution should only be attempted after verifying pin functions and register maps against the respective datasheets.
Do the ADIS16365BMLZ and ADIS16448BMLZ use the same digital interface?
Yes. Both devices provide a Serial Peripheral Interface (SPI) for configuration and data readout, and both support a register-based command structure. However, the register maps are not identical because the ADIS16448BMLZ includes additional registers for the magnetometer and barometric pressure sensor. Firmware written for one device must be reviewed and adapted before use with the other.
How do the gyroscope and accelerometer specifications compare between the two parts?
Both devices integrate triaxial gyroscopes and triaxial accelerometers, but their specified performance grades differ. The ADIS16448BMLZ is positioned as a tactical-grade IMU with tighter bias stability and noise performance than the ADIS16365BMLZ. Designers should compare the gyroscope bias instability, angular random walk, accelerometer bias repeatability, and noise density figures in the respective datasheets, since these parameters determine which part meets a given application's accuracy budget.
Does the ADIS16448BMLZ include sensors that the ADIS16365BMLZ does not?
Yes. The ADIS16448BMLZ integrates a triaxial magnetometer and a digital barometric pressure sensor in addition to the triaxial gyroscope and accelerometer set. The ADIS16365BMLZ does not include magnetometer or pressure sensing. This makes the ADIS16448BMLZ suitable for applications requiring heading reference or altitude estimation, while the ADIS16365BMLZ is limited to angular rate and acceleration sensing.
Can the ADIS16448BMLZ be used as a direct replacement for the ADIS16365BMLZ in an existing design?
Not without design review. Although both are SPI-based inertial sensor modules in the same product family, the ADIS16448BMLZ has additional sensor channels, a different register map, and different performance specifications. The host firmware, initialization sequence, and data processing must be updated, and the mechanical and electrical interface must be verified against both datasheets before substitution.
Which device is better suited for applications requiring magnetic heading or altitude information?
The ADIS16448BMLZ is the appropriate choice because it integrates a triaxial magnetometer for magnetic heading reference and a barometric pressure sensor for altitude-related measurements. The ADIS16365BMLZ does not provide these sensing channels, so it cannot supply heading or pressure data without external sensors.
Are both devices rated for the same operating temperature range and supply voltage?
Both the ADIS16365BMLZ and ADIS16448BMLZ are specified for industrial operating temperature ranges and are designed for a single-supply configuration typical of the ADIS1636x/1644x families. Because exact supply voltage limits and temperature grades are defined in each product's datasheet, designers should confirm the rated supply voltage range and operating temperature specification for the specific device from the official manufacturer documentation before finalizing a design.