Part A
AD5241BRZ1M
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6341 PCS
- Package
- SOIC-14
- Series
- Data Acquisition - Digital Potentiometers
Replacement verdict
Compatible functional replacement candidate
The AD5241BRZ1M and AD5241BR1M are functionally equivalent digital potentiometers from the same AD5241 family, sharing identical resistance tolerance, interface type, and supply voltage requirements. The primary distinction lies in the resistance value, which directly affects the end-to-end resistance and wiper settings. Designers should verify that the target application can accommodate the different nominal resistance before substituting one for the other.
Interface Type
High match
Resistance Value
Not compatible
Package Type
High match
Supply Voltage
High match
Parts at a glance
Part B
AD5241BR1M
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 731 PCS
- Package
- SOIC-14
- Series
- Data Acquisition - Digital Potentiometers
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD5241BRZ1M | AD5241BR1M | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Same manufacturer ensures consistent design, documentation, and support. |
| Resistance Value | 1 MΩ | 1 MΩ | The end-to-end resistance determines the adjustable resistance range of the digital potentiometer. |
| Number of Positions | 256 | 256 | More positions provide finer resolution for wiper adjustment. |
| Number of Taps | 256 | 256 | Tap count defines the number of discrete resistance settings available. |
| Interface Type | I²C | I²C | The control interface must match the host system's communication bus. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Operating voltage range must be compatible with the system power rails. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Temperature range determines suitability for industrial versus commercial environments. |
| Package / Case | 14-Lead SOIC | 14-Lead SOIC | Package type affects PCB footprint, assembly, and thermal characteristics. |
| Packaging / Ordering Suffix | Tube (Z = RoHS-compliant) | Reel (non-Z, leaded) | The Z suffix indicates RoHS compliance and the packaging format affects manufacturing handling and environmental compliance. |
| RoHS Compliance | RoHS Compliant | Non-RoHS (contains lead) | RoHS compliance is required for products sold in many regions and affects solder process compatibility. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5241BRZ1M | AD5241BR1M |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Taper | Linear | Linear |
| Configuration | Potentiometer | Potentiometer |
| Number of Circuits | 1 | 1 |
| Number of Taps | 256 | 256 |
| Resistance(Ohms) | 1M | 1M |
| Interface | I²C | I²C |
| Memory Type | Volatile | Volatile |
| Voltage - Supply | 2.7V ~ 5.5V, ±2.3V ~ 2.7V | 2.7V ~ 5.5V, ±2.3V ~ 2.7V |
| Features | Selectable Address | Selectable Address |
| Tolerance | -30%, +50% | -30%, +50% |
| Temperature Coefficient(Typ) | 30ppm/°C | 30ppm/°C |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C |
Frequently asked questions
What is the difference between AD5241BRZ1M and AD5241BR1M?
The AD5241BRZ1M and AD5241BR1M are both 1 MΩ, 256-position digital potentiometers from Analog Devices in an 14-lead SOIC package. The primary difference is the ordering code suffix: the "Z" in AD5241BRZ1M indicates RoHS-compliant, lead-free construction, while AD5241BR1M is the non-RoHS version. Both share the same functional specifications, including I²C-compatible interface and ±2.5 V to ±5.5 V dual-supply or 2.7 V to 5.5 V single-supply operation.
Are AD5241BRZ1M and AD5241BR1M functionally interchangeable?
Yes, they are functionally interchangeable. Both devices have identical electrical specifications, pin configurations, and 1 MΩ end-to-end resistance with 256 programmable positions. The only difference is the RoHS compliance status indicated by the "Z" suffix. In designs where lead-free construction is required, only the AD5241BRZ1M should be used.
What is the end-to-end resistance and resolution of these digital potentiometers?
Both the AD5241BRZ1M and AD5241BR1M provide a 1 MΩ nominal end-to-end resistance with 256 programmable positions, yielding a wiper resolution of approximately 3.9 kΩ per step. The resistance tolerance is typically ±30% for the 1 MΩ version, as specified in the Analog Devices AD5241/AD5242 datasheet.
What supply voltage ranges do the AD5241BRZ1M and AD5241BR1M support?
Both devices operate from a single supply of 2.7 V to 5.5 V or a dual supply of ±2.5 V to ±5.5 V. This flexibility allows use in both 3 V and 5 V systems as well as bipolar analog signal applications. The digital interface remains compatible with standard I²C logic levels.
What interface do the AD5241BRZ1M and AD5241BR1M use for programming?
Both parts use a 2-wire I²C-compatible serial interface. The devices support standard-mode (100 kHz) and fast-mode (400 kHz) I²C communication, allowing the wiper position to be set digitally by a microcontroller or other I²C master. The I²C address is partially determined by the state of the AD0 and AD1 pins.
What package do the AD5241BRZ1M and AD5241BR1M come in?
Both the AD5241BRZ1M and AD5241BR1M are supplied in a 14-lead SOIC (Small Outline Integrated Circuit) package with a 1.27 mm pitch and 3.90 mm body width. The package is designated as R-14 by Analog Devices. The "Z" version is lead-free/RoHS-compliant, while the non-Z version uses tin-lead terminations.
Can the AD5241BRZ1M be used as a drop-in replacement for the AD5241BR1M in existing designs?
Yes, the AD5241BRZ1M is a drop-in replacement for the AD5241BR1M in terms of electrical performance, pinout, and package footprint. The only consideration is that the AD5241BRZ1M is RoHS-compliant and lead-free, which may require reflow profile adjustments if the existing process was qualified for tin-lead soldering. No circuit redesign is necessary.
What are the operating temperature ranges for the AD5241BRZ1M and AD5241BR1M?
Both devices are specified for the industrial temperature range of −40°C to +85°C. This makes them suitable for industrial control, instrumentation, and automotive-adjacent applications where wide temperature operation is required. The specifications in the datasheet are guaranteed over this full range.