Part A
AD5263BRUZ50
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5280 PCS
- Package
- TSSOP-24
- Series
- Acquisição de dados - Potenciômetros Digitais
Replacement verdict
Compatible functional replacement candidate
The AD5260BRUZ20 and AD5263BRUZ50 are both single-supply digital potentiometers from the same Analog Devices family, sharing a compatible SPI interface and TSSOP-14 footprint. However, the AD5263 offers four independent channels with 50 kΩ end-to-end resistance, while the AD5260 provides a single 20 kΩ channel, so the AD5263BRUZ50 can serve as a functional replacement only when the additional channels and higher resistance value are acceptable in the target design.
Channel Count
Validation required
End-to-End Resistance
Validation required
Package Type
High match
Digital Interface
High match
Parts at a glance
Part B
AD5260BRUZ20
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4908 PCS
- Package
- TSSOP-14
- Series
- Acquisição de dados - Potenciômetros Digitais
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD5260BRUZ20 | AD5263BRUZ50 | Why it matters |
|---|---|---|---|
| Number of Channels | 1 | 4 | Determines how many independent resistance channels are available in a single package, directly affecting circuit density and channel count requirements. |
| End-to-End Resistance | 20 kΩ | 50 kΩ | Sets the nominal resistance range, which must match the impedance requirements of the surrounding analog signal chain. |
| Number of Positions (Taps) | 256 | 256 | Defines the resolution of resistance adjustment; identical tap counts provide the same step granularity. |
| Interface Type | SPI | I2C | The digital control bus must be compatible with the host controller; SPI and I2C are not directly interchangeable without protocol changes. |
| Supply Voltage Range | 4.5 V to 16.5 V (single), ±4.5 V to ±8.25 V (dual) | 4.5 V to 16.5 V (single), ±4.5 V to ±8.25 V (dual) | Determines compatibility with the available power rails in the target system. |
| Package Type | 14-Lead TSSOP | 20-Lead TSSOP | Footprint and pin count must match the PCB layout; different packages are not drop-in compatible. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Ensures the device operates reliably within the environmental conditions of the application. |
| Resistance Tolerance | ±30% | ±30% | Indicates the variation in absolute end-to-end resistance, affecting calibration and matching requirements. |
| Nonvolatile Memory | No | No | Determines whether the wiper position is retained after power cycling, which affects startup behavior and system initialization. |
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 | AD5263BRUZ50 | AD5260BRUZ20 |
|---|---|---|
| Part Status | Active | Active |
| Taper | Linear | Linear |
| Configuration | Potentiometer | Potentiometer |
| Number of Circuits | 4 | 1 |
| Number of Taps | 256 | 256 |
| Resistance(Ohms) | 50k | 20k |
| Interface | I²C, SPI | SPI |
| Memory Type | Volatile | Volatile |
| Voltage - Supply | 4.5V ~ 16.5V, ±4.5V ~ 7.5V | 4.5V ~ 16.5V, ±5V |
| Features | Cascade Pin, Selectable Address | Cascade Pin |
| Tolerance | ±30% | ±30% |
| Temperature Coefficient(Typ) | 30ppm/°C | 35ppm/°C |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 85°C |
Frequently asked questions
What are the key differences between the AD5260BRUZ20 and AD5263BRUZ50?
The AD5260BRUZ20 is a single-channel, 20 kΩ digital potentiometer, while the AD5263BRUZ50 is a quad-channel, 50 kΩ digital potentiometer. The AD5263 integrates four independent potentiometers in one package, whereas the AD5260 provides only one channel. Both are offered in a 14-lead TSSOP package, but the AD5263 requires more control pins for its additional channels.
Are the AD5260BRUZ20 and AD5263BRUZ50 pin-compatible?
No. The AD5260BRUZ20 uses a 14-lead TSSOP with a single potentiometer and dedicated pins for A, B, and W terminals. The AD5263BRUZ50 also uses a 14-lead TSSOP but multiplexes four potentiometers, requiring different pin assignments for the additional channels and control signals. They are not drop-in replacements.
What is the end-to-end resistance tolerance of each device?
The AD5260BRUZ20 has a nominal end-to-end resistance of 20 kΩ with a ±20% tolerance. The AD5263BRUZ50 has a nominal end-to-end resistance of 50 kΩ with a ±20% tolerance. These tolerances are specified in the respective manufacturer datasheets.
What digital interface do these digital potentiometers use?
Both the AD5260BRUZ20 and AD5263BRUZ50 use a 3-wire SPI-compatible serial interface. The AD5263 additionally provides a daisy-chain output (SDO) to cascade multiple devices, while the AD5260 does not include an SDO pin.
What is the supply voltage range for the AD5260BRUZ20 and AD5263BRUZ50?
Both devices operate from a single supply of 2.7 V to 5.5 V, or from dual supplies of ±2.5 V to ±2.75 V. The digital logic supply (VDD) and the potentiometer supply (VSS/VDD) can be independent within the specified limits.
How many wiper positions do these digital potentiometers offer?
Both the AD5260BRUZ20 and AD5263BRUZ50 provide 256 wiper positions (8-bit resolution). The wiper position is programmed via the serial interface and can be read back on both devices.
Can the AD5260BRUZ20 be used as a direct substitute for the AD5263BRUZ50 in an existing design?
No. The AD5260BRUZ20 is a single-channel device, while the AD5263BRUZ50 contains four independent channels. A direct substitution would require redesigning the circuit to accommodate the different channel count, pinout, and control logic. Additionally, the end-to-end resistance differs (20 kΩ vs. 50 kΩ), which affects gain, offset, and loading in the target application.
What are the typical applications for each device?
The AD5260BRUZ20 is typically used in single-channel trimming and adjustment applications, such as gain control, offset adjustment, and programmable filters. The AD5263BRUZ50 is suited for multi-channel applications requiring independent digital potentiometers, such as quad-channel audio volume control, multi-channel sensor calibration, and programmable power supplies.