Part A
AD5252BRUZ1
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 4418 PCS
- Package
- TSSOP-14
- Series
- Acquisition de données - potentiomètres numériques
Replacement verdict
Compatible functional replacement candidate
The AD5252BRUZ1 and AD5253BRUZ1 are functionally compatible digital potentiometers from the same Analog Devices AD525x family, sharing identical package, interface, and operating characteristics. The AD5253BRUZ1 offers 64-position resolution versus 256 positions on the AD5252BRUZ1, which may affect applications requiring finer wiper adjustment granularity. Designers should validate end-to-end performance in the target circuit before committing to a drop-in substitution.
Package Type
High match
Interface Type
High match
Resolution
Validation required
Operating Temperature Range
High match
Parts at a glance
Part B
AD5253BRUZ1
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 5016 PCS
- Package
- TSSOP-20
- Series
- Acquisition de données - potentiomètres numériques
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 | AD5253BRUZ1 | Why it matters |
|---|---|---|---|
| Number of Resistor Taps | 256 | 64 | Determines the resolution of the digital potentiometer; a higher tap count provides finer adjustment granularity, which affects the achievable wiper step size and overall accuracy of the set resistance. |
| Number of Potentiometers | 2 | 4 | Indicates how many independent variable resistors are integrated in the package; this directly affects channel count and whether the device can replace multiple discrete potentiometers in a design. |
| End-to-End Resistance | 1 kΩ | 1 kΩ | Sets the nominal full-scale resistance of each potentiometer, which must match the circuit's impedance requirements for proper signal level and loading behavior. |
| Interface Type | I²C | I²C | Defines the digital communication protocol used to program the wiper position; compatibility with the host controller's bus is essential for functional substitution. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Specifies the allowable power supply window; both parts must operate within the system rail voltage to ensure correct logic levels and analog performance. |
| Nonvolatile Memory | EEPROM | EEPROM | Indicates whether the wiper setting is retained after power loss; nonvolatile storage allows the device to restore its last state without host reprogramming. |
| Package Type | 14-Lead TSSOP | 14-Lead TSSOP | Determines the physical footprint and pin layout; matching packages allow drop-in replacement on an existing PCB without layout changes. |
| Operating Temperature Range | -40 °C to +105 °C | -40 °C to +105 °C | Defines the environmental conditions under which the device is guaranteed to operate; both parts must meet the application's thermal requirements. |
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 | AD5252BRUZ1 | AD5253BRUZ1 |
|---|---|---|
| Part Status | Active | Obsolete |
| Taper | Linear | Linear |
| Configuration | Potentiometer | Potentiometer |
| Number of Circuits | 2 | 4 |
| Number of Taps | 256 | 64 |
| 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 AD5253BRUZ1 digital potentiometers?
The AD5252BRUZ1 is a dual-channel, 256-position digital potentiometer, while the AD5253BRUZ1 is a quad-channel, 64-position digital potentiometer. Both are 1 kΩ, nonvolatile, I²C-compatible devices in 14-lead TSSOP packages, but they differ in channel count and resolution.
Are the AD5252BRUZ1 and AD5253BRUZ1 pin-compatible?
No. The AD5252BRUZ1 is a dual-channel device and the AD5253BRUZ1 is a quad-channel device. They have different pin configurations and cannot be used interchangeably without verifying the PCB layout against the respective datasheets.
What is the end-to-end resistance of the AD5252BRUZ1 and AD5253BRUZ1?
Both the AD5252BRUZ1 and AD5253BRUZ1 are offered in a 1 kΩ end-to-end resistance option, as indicated by the "1" suffix in the part number. Other resistance options exist in the AD5252 and AD5253 families, but the BRUZ1 variants specifically denote 1 kΩ.
What is the resolution of the AD5252BRUZ1 and AD5253BRUZ1?
The AD5252BRUZ1 provides 256 positions (8-bit resolution) per channel. The AD5253BRUZ1 provides 64 positions (6-bit resolution) per channel. This difference affects the step size and adjustment granularity in the target application.
Do the AD5252BRUZ1 and AD5253BRUZ1 have nonvolatile memory?
Yes. Both devices feature nonvolatile memory (EEPROM) that retains the wiper setting after power is removed. This allows the potentiometer to power up in the last programmed position without requiring external intervention.
What communication interface do the AD5252BRUZ1 and AD5253BRUZ1 use?
Both devices use a 2-wire I²C-compatible serial interface. They support standard and fast I²C modes, allowing direct connection to most microcontrollers and digital signal processors.
What is the operating voltage range for the AD5252BRUZ1 and AD5253BRUZ1?
Both the AD5252BRUZ1 and AD5253BRUZ1 operate from a single 2.7 V to 5.5 V supply, or from dual ±2.5 V supplies. This wide operating range makes them suitable for both 3 V and 5 V systems.
Can the AD5252BRUZ1 be used as a drop-in replacement for the AD5253BRUZ1?
No. The AD5252BRUZ1 is a dual-channel, 256-position device, while the AD5253BRUZ1 is a quad-channel, 64-position device. Differences in channel count, resolution, pinout, and internal register mapping prevent direct substitution without design changes and firmware updates.