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 AD5252BRU50 are functionally compatible digital potentiometers from the same AD5252 family, sharing identical architecture, interface, and package. The primary distinction is the end-to-end resistance value, which directly affects circuit behavior in applications where the resistance setting is critical. Designers should verify that the resistance tolerance and wiper settings remain within acceptable limits for their specific application before substituting one for the other.
End-to-End Resistance
Not compatible
Interface Type
High match
Package Type
High match
Resolution
High match
Parts at a glance
Part B
AD5252BRU50
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 9815 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 | AD5252BRU50 | Why it matters |
|---|---|---|---|
| End-to-End Resistance | 1 kΩ | 50 kΩ | Determines the nominal resistance range of the digital potentiometer and directly affects the current and voltage levels in the target circuit, so the two parts are not functionally interchangeable without redesign. |
| Number of Positions | 256 | 256 | Defines the wiper resolution; identical resolution means both parts offer the same adjustment granularity. |
| Number of Channels | 2 | 2 | Indicates how many independent potentiometer channels are available; matching channel count supports equivalent circuit topology. |
| Interface Type | I2C | I2C | Determines the digital communication protocol used to control the device; identical interface allows drop-in compatibility at the system bus level. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Specifies the allowable power supply window; matching ranges ensure the same system rails can power either device. |
| Memory Type | Nonvolatile (EEPROM) | Nonvolatile (EEPROM) | Determines whether the wiper setting is retained after power loss; identical nonvolatile memory preserves startup behavior. |
| Package / Mounting | 14-TSSOP, Surface Mount | 14-TSSOP, Surface Mount | Defines the physical footprint and assembly method; matching packages allow the same PCB land pattern to be used. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Specifies the environmental range over which the device is guaranteed to operate; matching ranges ensure equivalent application suitability. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5252BRUZ1 | AD5252BRU50 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Taper | Linear | Linear |
| Configuration | Potentiometer | Potentiometer |
| Number of Circuits | 2 | 2 |
| Number of Taps | 256 | 256 |
| Resistance(Ohms) | 1k | 50k |
| 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% | ±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 the AD5252BRUZ1 and the AD5252BRU50?
The AD5252BRUZ1 and AD5252BRU50 are both dual-channel, 256-position digital potentiometers from Analog Devices. The primary difference is the end-to-end resistance value: the AD5252BRUZ1 has a 1 kΩ nominal resistance, while the AD5252BRU50 has a 50 kΩ nominal resistance. Both are offered in a 14-lead TSSOP package and share the same I²C interface and functional architecture.
Are the AD5252BRUZ1 and AD5252BRU50 pin-compatible?
Yes. Both devices are specified in the same 14-lead TSSOP (RU-14) package and share an identical pinout. This allows them to be used on the same PCB footprint, provided the circuit is designed to accommodate the different nominal resistance values.
Can the AD5252BRUZ1 and AD5252BRU50 be used interchangeably in a design?
They are not directly interchangeable without circuit validation. The 50:1 difference in end-to-end resistance (1 kΩ vs. 50 kΩ) affects the wiper current, power dissipation, and the resulting voltage or current in the target application. The designer must verify that the circuit operates correctly with the alternative resistance value before substituting one for the other.
What is the resolution and number of positions for both the AD5252BRUZ1 and AD5252BRU50?
Both devices provide 256 positions per channel, which corresponds to 8-bit resolution. Each channel has a dual-channel configuration, meaning the AD5252 family offers two independently programmable potentiometers in a single package.
What digital interface do the AD5252BRUZ1 and AD5252BRU50 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 are the typical applications for the AD5252BRUZ1 versus the AD5252BRU50?
The AD5252BRUZ1 (1 kΩ) is typically used in low-resistance signal paths where minimal series resistance and higher wiper current are required, such as in some gain-control or current-setting circuits. The AD5252BRUZ50 (50 kΩ) is more common in applications requiring higher resistance, such as adjustable voltage dividers, offset trimming, and low-power signal conditioning where lower current is acceptable.
Do the AD5252BRUZ1 and AD5252BRU50 have the same operating voltage range?
Yes. Both devices operate from a single supply voltage range of 2.7 V to 5.5 V, or from dual supplies of ±2.5 V to ±2.7 V, as specified in the Analog Devices AD5252 datasheet. The digital interface and internal logic are compatible with the same supply levels.
What is the temperature coefficient of the AD5252BRUZ1 and AD5252BRU50?
Both devices are specified with a ratiometric temperature coefficient of 35 ppm/°C typical in potentiometer divider mode. The absolute temperature coefficient (end-to-end resistance) is typically 300 ppm/°C for the 1 kΩ version and 300 ppm/°C for the 50 kΩ version, as listed in the AD5252 datasheet.
Are the AD5252BRUZ1 and AD5252BRU50 RoHS compliant?
Yes. Both the AD5252BRUZ1 and AD5252BRU50 are RoHS-compliant parts, as indicated by the "Z" suffix in the ordering code, which denotes lead-free and RoHS-compliant packaging per Analog Devices' standard ordering guide.