Part A
AD5260BRUZ20
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 4908 PCS
- Package
- TSSOP-14
- Series
- Acquisition de données - potentiomètres numériques
Replacement verdict
Compatible functional replacement candidate
The AD5260BRUZ20 and AD5263BRU20 are both single-channel digital potentiometers from Analog Devices with comparable 20 kΩ end-to-end resistance and similar TSSOP packaging, making the AD5263BRU20 a viable functional substitute for the AD5260BRUZ20 in many designs. However, differences in interface protocol, supply voltage range, and temperature coefficient require careful validation before committing to a drop-in replacement.
Interface Type
Validation required
Supply Voltage Range
Validation required
End-to-End Resistance
High match
Temperature Coefficient
Validation required
Parts at a glance
Part B
AD5263BRU20
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 584 PCS
- Package
- TSSOP-24
- 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 | AD5260BRUZ20 | AD5263BRU20 | Why it matters |
|---|---|---|---|
| Number of Channels | 1 | 4 | Channel count determines how many independent resistance paths can be controlled, directly affecting circuit architecture and board space. |
| End-to-End Resistance | 20 kΩ | 20 kΩ | Nominal resistance sets the signal attenuation range and must match the target application's impedance requirements. |
| Resolution (Number of Positions) | 256 | 256 | Resolution defines the number of discrete wiper settings, affecting adjustment granularity and precision. |
| Interface Type | SPI | I²C | The digital interface must match the host controller's available bus, making it a critical factor for direct substitutability. |
| Package / Mounting Type | 14-TSSOP (Surface Mount) | 20-TSSOP (Surface Mount) | Package footprint and pin count must be compatible with the PCB layout for a drop-in replacement. |
| Supply Voltage Range | 4.5 V to 16.5 V (single) / ±2.25 V to ±8.25 V (dual) | 4.5 V to 16.5 V (single) / ±2.25 V to ±8.25 V (dual) | Operating voltage range must encompass the system supply rails to ensure proper device operation. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Temperature range must cover the application's environmental conditions for reliable performance. |
| Wiper Resistance (Typical) | 60 Ω | 60 Ω | Wiper resistance contributes to signal error and loading; lower values are preferred for precision applications. |
| Nonvolatile Memory | No | No | Absence of nonvolatile storage means the wiper position resets on power cycle, affecting startup behavior. |
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 | AD5260BRUZ20 | AD5263BRU20 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Taper | Linear | Linear |
| Configuration | Potentiometer | Potentiometer |
| Number of Circuits | 1 | 4 |
| Number of Taps | 256 | 256 |
| Resistance(Ohms) | 20k | 20k |
| Interface | SPI | I²C, SPI |
| Memory Type | Volatile | Volatile |
| Voltage - Supply | 4.5V ~ 16.5V, ±5V | 4.5V ~ 16.5V, ±4.5V ~ 7.5V |
| Features | Cascade Pin | Cascade Pin, Selectable Address |
| Tolerance | ±30% | ±30% |
| Temperature Coefficient(Typ) | 35ppm/°C | 30ppm/°C |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 125°C |
Frequently asked questions
What are the key differences between the AD5260BRUZ20 and the AD5263BRU20?
The AD5260BRUZ20 is a single-channel, 20 kΩ digital potentiometer with 256 positions and an SPI-compatible interface, supplied in a 14-lead TSSOP package. The AD5263BRU20 is a quad-channel, 20 kΩ digital potentiometer with 256 positions per channel and a selectable SPI/I2C-compatible interface, supplied in a 24-lead TSSOP package. The primary differences are channel count (1 vs. 4), package size (14-lead vs. 24-lead TSSOP), and interface flexibility (SPI only vs. selectable SPI/I2C).
Are the AD5260BRUZ20 and AD5263BRU20 pin-compatible?
No. The AD5260BRUZ20 uses a 14-lead TSSOP package, while the AD5263BRU20 uses a 24-lead TSSOP package. They have different pin counts, pin assignments, and PCB land patterns, so they are not pin-compatible and cannot be interchanged without a board redesign.
Do both devices have the same end-to-end resistance and resolution?
Yes. Both the AD5260BRUZ20 and AD5263BRU20 are specified with a 20 kΩ nominal end-to-end resistance and 256-position resolution (8-bit) per channel, based on the Analog Devices AD5260 and AD5263 datasheets.
What digital interfaces do the AD5260BRUZ20 and AD5263BRU20 support?
The AD5260BRUZ20 supports an SPI-compatible serial interface. The AD5263BRU20 supports a selectable SPI- or I2C-compatible serial interface, allowing it to be used in either SPI or I2C bus systems depending on configuration.
Can the AD5260BRUZ20 be used as a drop-in replacement for one channel of the AD5263BRU20?
No, not as a drop-in replacement. Although both are 20 kΩ, 256-position digital potentiometers, the AD5260BRUZ20 is a single-channel device in a 14-lead TSSOP package, while the AD5263BRU20 is a quad-channel device in a 24-lead TSSOP package. Pin count, pin functions, and package footprint differ, so a direct drop-in substitution is not possible without design changes.
What are the typical applications for the AD5260BRUZ20 and AD5263BRU20?
Both devices are used for digitally controlled resistance adjustment, such as gain and offset trimming, programmable filters, and sensor calibration. The AD5260BRUZ20 is suited to single-channel adjustment where board space is limited, while the AD5263BRU20 is suited to multi-channel systems requiring four independent digitally controlled potentiometers in one package.
Do the AD5260BRUZ20 and AD5263BRU20 operate from the same supply voltage range?
Both the AD5260 and AD5263 families are specified for dual-supply operation of ±2.5 V to ±5.5 V or single-supply operation of 2.7 V to 5.5 V, per the Analog Devices datasheets. The AD5260BRUZ20 and AD5263BRU20 share this supply range, but the AD5263BRU20's four channels may increase total supply current compared with the single-channel AD5260BRUZ20.
Which device is more suitable for a design requiring four independent digital potentiometers?
The AD5263BRU20 is more suitable because it integrates four independent 20 kΩ, 256-position digital potentiometers in a single 24-lead TSSOP package. Using four AD5260BRUZ20 devices would require four separate 14-lead TSSOP packages and additional board space and control signals.