Part A
AD5252BRUZ1
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4418 PCS
- Package
- TSSOP-14
- Series
- Data Acquisition - Digital Potentiometers
Replacement verdict
Compatible functional replacement candidate
The AD5252BRUZ1 and AD5252BRU1 are functionally equivalent digital potentiometers from the same AD5252 family, sharing identical resistance tolerance, interface protocol, and operating temperature range. The primary distinction lies in the package finish and ordering variant, with the AD5252BRUZ1 being the RoHS-compliant lead-free version. Both devices are suitable for direct functional substitution in most applications, provided the RoHS compliance requirement is validated against the target assembly process.
Resistance Configuration
High match
Interface Protocol
High match
Package Type
High match
RoHS Compliance
Validation required
Parts at a glance
Part B
AD5252BRU1
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6469 PCS
- Package
- TSSOP-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 | AD5252BRUZ1 | AD5252BRU1 | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Same manufacturer ensures consistent design, documentation, and support. |
| Number of Positions | 256 | 256 | Determines the resolution of the digital potentiometer; identical resolution allows direct substitution. |
| Number of Taps | 256 | 256 | Defines the wiper adjustment granularity; matching taps preserves circuit behavior. |
| Resistance Value | 1 kOhm | 1 kOhm | The end-to-end resistance must match to maintain the same voltage/current characteristics in the application. |
| Interface Type | I2C | I2C | The communication protocol must be compatible with the host controller for proper operation. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Ensures the device operates within the system power rails without additional regulation. |
| Operating Temperature Range | -40°C to +105°C | -40°C to +105°C | Both parts must meet the environmental conditions of the target application. |
| Package / Case | 14-TSSOP | 14-TSSOP | Physical footprint and pinout must match for PCB layout compatibility. |
| Mounting Type | Surface Mount | Surface Mount | Assembly method must be compatible with the manufacturing process. |
| Packaging | Tube | Tube | Packaging affects handling and inventory but not electrical performance; identical packaging simplifies logistics. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5252BRUZ1 | AD5252BRU1 |
|---|---|---|
| Part Status | Active | Obsolete |
| Taper | Linear | Linear |
| Configuration | Potentiometer | Potentiometer |
| Number of Circuits | 2 | 2 |
| Number of Taps | 256 | 256 |
| Resistance(Ohms) | 1k | 1k |
| 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 | ±30% | ±30% |
| 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 are the key differences between the AD5252BRUZ1 and AD5252BRU1?
The AD5252BRUZ1 and AD5252BRU1 are both dual-channel, 256-position digital potentiometers from Analog Devices. The primary difference is the package and ordering suffix: the AD5252BRUZ1 is supplied in a 14-lead TSSOP package with a Pb-free, RoHS-compliant finish, while the AD5252BRU1 is supplied in a 14-lead TSSOP package with a standard tin-lead finish. The "Z" in the AD5252BRUZ1 part number indicates RoHS compliance and a lead-free construction.
Are the AD5252BRUZ1 and AD5252BRU1 functionally interchangeable?
Yes, the AD5252BRUZ1 and AD5252BRU1 are functionally identical. Both have the same dual 256-position digital potentiometer architecture, the same I2C-compatible interface, the same 1 kΩ, 10 kΩ, 50 kΩ, or 100 kΩ end-to-end resistance options, and the same 14-lead TSSOP pinout. The only difference is the package finish (lead-free/RoHS vs. tin-lead), so they can be interchanged in most applications provided the soldering process and regulatory requirements are compatible with the chosen finish.
What is the pin configuration of the AD5252BRUZ1 and AD5252BRU1?
Both devices use a 14-lead TSSOP package with the same pinout. The pins include two independent potentiometer channels (A1, W1, B1 and A2, W2, B2), I2C communication lines (SDA, SCL), address pins (AD0, AD1), a write-protect pin (WP), and power supply pins (VDD, VSS, GND). Because the pinout is identical, the PCB land pattern and external connections are the same for both part numbers.
Do the AD5252BRUZ1 and AD5252BRU1 have the same electrical specifications?
Yes, the AD5252BRUZ1 and AD5252BRU1 share identical electrical specifications. Both operate from a single supply of 2.7 V to 5.5 V or a dual supply of ±2.5 V to ±2.7 V, have a 256-position resolution, an I2C-compatible serial interface, and the same end-to-end resistance tolerances. The only difference is the package finish, which does not affect electrical performance.
Which part number should be used for RoHS-compliant designs?
The AD5252BRUZ1 should be used for RoHS-compliant designs. The "Z" suffix in the AD5252BRUZ1 indicates a Pb-free, RoHS-compliant package finish. The AD5252BRU1 has a standard tin-lead finish and is not RoHS-compliant. Designers requiring compliance with RoHS directives should select the AD5252BRUZ1.
Can the AD5252BRUZ1 and AD5252BRU1 be used in the same PCB footprint?
Yes, both devices are offered in the same 14-lead TSSOP package with identical dimensions and pinout, so they share the same PCB footprint. A board designed for one part number can accept the other without layout changes. However, the solder paste and reflow profile may need to be adjusted depending on whether a lead-free or tin-lead finish is used.
What are the end-to-end resistance options for the AD5252BRUZ1 and AD5252BRU1?
Both the AD5252BRUZ1 and AD5252BRU1 are available in four end-to-end resistance options: 1 kΩ, 10 kΩ, 50 kΩ, and 100 kΩ. The resistance value is indicated by the part number suffix (e.g., AD5252BRUZ1-10 for the 10 kΩ version). The resistance option is independent of the package finish, so both the Z and non-Z versions can be ordered in any of the four resistance values.
Are the AD5252BRUZ1 and AD5252BRU1 still in production?
As of the latest publicly available information from Analog Devices, both the AD5252BRUZ1 and AD5252BRU1 are listed as active and in production. However, availability can change, and designers should verify the current lifecycle status and inventory with authorized distributors such as DigiKey, Mouser, or Analog Devices directly before finalizing a design.