Part A
AD5254BRUZ10
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 5455 個数
- Package
- TSSOP-20
- Series
- データ取得 - デジタルポテンショメータ
Replacement verdict
Compatible functional replacement candidate
The AD5254BRUZ10 and AD5254BRU10 are functionally equivalent digital potentiometers from the same AD5254 family, sharing identical resistance values, channel counts, interface types, and package configurations. The AD5254BRUZ10 represents the RoHS-compliant lead-free version, while the AD5254BRU10 is the non-RoHS variant. For applications requiring environmental compliance, the AD5254BRUZ10 is the preferred choice; however, both parts are interchangeable in terms of electrical performance and functional operation.
Resistance Value
High match
Channel Count
High match
Interface Type
High match
Environmental Compliance
Validation required
Parts at a glance
Part B
AD5254BRU10
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 4038 個数
- Package
- TSSOP-20
- Series
- データ取得 - デジタルポテンショメータ
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD5254BRUZ10 | AD5254BRU10 | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Same manufacturer ensures consistent design, support, and documentation. |
| Resistance Value | 10 kOhm | 10 kOhm | Determines the end-to-end resistance of the digital potentiometer, directly affecting circuit gain, attenuation, or bias levels. |
| Number of Taps | 256 | 256 | Defines the resolution of resistance adjustment; more taps allow finer wiper positioning. |
| Number of Potentiometers | 4 | 4 | Indicates how many independent variable resistors are integrated in one package, affecting channel count and board space. |
| Interface Type | I2C | I2C | Determines the communication protocol required from the host controller for setting wiper positions. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Defines the compatible system power rails and logic levels for proper operation. |
| Memory Type | Non-Volatile (EEPROM) | Non-Volatile (EEPROM) | Non-volatile memory retains the wiper setting after power loss, eliminating the need for recalibration on startup. |
| Operating Temperature Range | -40°C to +105°C | -40°C to +105°C | Ensures reliable operation across the intended environmental conditions of the application. |
| Package / Mounting | 16-TSSOP (Tube) | 16-TSSOP (Tube) | Package type and mounting style affect PCB footprint, assembly process, and thermal characteristics. |
| RoHS Compliance | RoHS Compliant | Non-RoHS / Leaded | RoHS status affects regulatory compliance and suitability for markets with hazardous substance restrictions. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5254BRUZ10 | AD5254BRU10 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Taper | Linear | Linear |
| Configuration | Potentiometer | Potentiometer |
| Number of Circuits | 4 | 4 |
| Number of Taps | 256 | 256 |
| Resistance(Ohms) | 10k | 10k |
| Interface | I²C | I²C |
| Memory Type | Non-Volatile | Non-Volatile |
| Voltage - Supply | 2.7V ~ 5.5V, ±2.25V ~ 2.75V | 2.7V ~ 5.5V, ±2.25V ~ 2.75V |
| Features | Selectable Address | Selectable Address |
| Tolerance | ±20% | ±20% |
| Temperature Coefficient(Typ) | 650ppm/°C | 650ppm/°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 AD5254BRUZ10 and AD5254BRU10?
The AD5254BRUZ10 is the RoHS-compliant, lead-free version of the AD5254BRU10. Both are quad-channel, 10 kΩ digital potentiometers in a 20-lead TSSOP package. The "Z" suffix in AD5254BRUZ10 indicates Pb-free/RoHS compliance, while AD5254BRU10 is the non-RoHS version. Functionally and electrically, they are identical.
Are AD5254BRUZ10 and AD5254BRU10 pin-compatible?
Yes. Both devices use the same 20-lead TSSOP package with identical pinout and footprint. The only difference is the RoHS compliance designation. They can be used interchangeably on the same PCB layout.
Can AD5254BRUZ10 directly replace AD5254BRU10 in an existing design?
Yes, AD5254BRUZ10 is a direct functional and pin-compatible replacement for AD5254BRU10. The electrical specifications, resolution (256 positions), interface (I²C), and operating voltage range (2.7 V to 5.5 V) are the same. The only consideration is that AD5254BRUZ10 meets RoHS requirements while AD5254BRU10 does not.
What is the end-to-end resistance of AD5254BRUZ10 and AD5254BRU10?
Both AD5254BRUZ10 and AD5254BRU10 have a nominal end-to-end resistance of 10 kΩ. The "10" in the part number denotes the 10 kΩ resistance option. The AD5254 family also offers 1 kΩ, 50 kΩ, and 100 kΩ options in other orderable part numbers.
What is the resolution and number of channels for AD5254BRUZ10 and AD5254BRU10?
Both devices are quad-channel digital potentiometers with 256-position resolution (8-bit). Each channel provides a wiper that can be programmed via the I²C interface. They also feature nonvolatile memory (EEPROM) to store wiper settings.
What supply voltage range do AD5254BRUZ10 and AD5254BRU10 support?
Both AD5254BRUZ10 and AD5254BRU10 operate from a single supply voltage range of 2.7 V to 5.5 V. They also support dual-supply operation with VDD/VSS ranging from ±2.25 V to ±2.75 V, depending on the configuration.
Do AD5254BRUZ10 and AD5254BRU10 have nonvolatile memory?
Yes. Both AD5254BRUZ10 and AD5254BRU10 include nonvolatile EEPROM that stores the wiper settings. This allows the wiper position to be retained after power-down and restored on power-up without reprogramming.
What is the operating temperature range for AD5254BRUZ10 and AD5254BRU10?
Both AD5254BRUZ10 and AD5254BRU10 are specified for the industrial temperature range of −40°C to +105°C. This is consistent with the "B" grade designation in the part number.
Which part should be selected for a new RoHS-compliant design?
AD5254BRUZ10 should be selected for new designs requiring RoHS compliance. AD5254BRU10 is the non-RoHS legacy version and may not be suitable for products sold in regions with RoHS or similar environmental regulations. Both are functionally identical, so no electrical or layout changes are required.