Part A
AD5263BRUZ20
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4338 ПКС
- Package
- TSSOP-24
- Series
- Сбор данных - цифровые потенциометры
Replacement verdict
Not a drop-in replacement
The AD5260BRUZ20 and AD5263BRUZ20 are not drop-in replacements for each other. Although both are single-supply digital potentiometers in the same TSSOP-14 package, they differ fundamentally in channel count, interface protocol, and internal architecture, requiring PCB redesign and firmware changes before substitution can be considered.
Different channel count
Different interface protocol
Different internal architecture
Different register map
Parts at a glance
Part B
AD5260BRUZ20
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4908 ПКС
- Package
- TSSOP-14
- Series
- Сбор данных - цифровые потенциометры
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 | AD5263BRUZ20 | Why it matters |
|---|---|---|---|
| Number of Channels | 1 | 4 | Determines how many independent potentiometer channels are available; a 4-channel device can replace multiple single-channel devices but not vice versa. |
| End-to-End Resistance | 20 kΩ | 20 kΩ | Sets the nominal resistance range of the digital potentiometer, directly affecting signal attenuation and current levels in the application. |
| Resolution | 8-bit (256 positions) | 8-bit (256 positions) | Defines the number of wiper tap positions and thus the achievable adjustment granularity. |
| Interface Type | SPI | SPI | Determines the digital communication protocol required by the host controller for programming the device. |
| 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) | Defines the allowable operating supply rails and compatibility with the system power architecture. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Specifies the environmental conditions under which the device is guaranteed to operate within datasheet limits. |
| Package Type | 14-Lead TSSOP | 14-Lead TSSOP | Affects PCB footprint, assembly, and thermal characteristics; matching packages simplify drop-in substitution. |
| Wiper Resistance | 60 Ω typical | 60 Ω typical | Contributes series resistance in the signal path and influences accuracy, especially at low resistance settings. |
| Pin Count | 14 | 14 | Determines PCB layout compatibility; identical pin counts do not guarantee identical pinouts. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5263BRUZ20 | AD5260BRUZ20 |
|---|---|---|
| Part Status | Active | Active |
| Taper | Linear | Linear |
| Configuration | Potentiometer | Potentiometer |
| Number of Circuits | 4 | 1 |
| Number of Taps | 256 | 256 |
| Resistance(Ohms) | 20k | 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 AD5263BRUZ20 digital potentiometers?
The AD5260BRUZ20 is a single-channel, 20 kΩ, 256-position digital potentiometer with an SPI-compatible interface, while the AD5263BRUZ20 is a quad-channel, 20 kΩ, 256-position digital potentiometer with an SPI-compatible interface. The AD5263 integrates four independent potentiometers in one package, whereas the AD5260 provides only one channel.
Are the AD5260BRUZ20 and AD5263BRUZ20 pin-compatible?
No. The AD5260BRUZ20 is offered in a 14-lead TSSOP package, while the AD5263BRUZ20 is offered in a 24-lead TSSOP package. The different pin counts and pin assignments prevent direct pin-to-pin compatibility.
Do both devices have the same end-to-end resistance and resolution?
Yes. Both the AD5260BRUZ20 and AD5263BRUZ20 have a 20 kΩ end-to-end resistance and 256-position resolution (8-bit). The "20" suffix in both part numbers denotes the 20 kΩ resistance option.
What supply voltage range do the AD5260BRUZ20 and AD5263BRUZ20 support?
Both devices operate from a single supply of 4.5 V to 16.5 V or a dual supply of ±2.25 V to ±8.25 V, as specified in the Analog Devices datasheets.
Can the AD5260BRUZ20 be used as a drop-in replacement for the AD5263BRUZ20 in an existing design?
No. The AD5260BRUZ20 provides only one potentiometer channel, while the AD5263BRUZ20 provides four independent channels. A design requiring four channels cannot use the single-channel AD5260BRUZ20 without significant redesign, and the package and pinout differences also prevent a direct drop-in replacement.
What digital interface do the AD5260BRUZ20 and AD5263BRUZ20 use?
Both devices use an SPI-compatible serial interface for programming the wiper position. The interface supports daisy-chaining on the AD5263BRUZ20 for multiple channels.
What are the operating temperature ranges for the AD5260BRUZ20 and AD5263BRUZ20?
Both the AD5260BRUZ20 and AD5263BRUZ20 are specified for the industrial temperature range of −40°C to +85°C, as stated in the Analog Devices datasheets.