Part A
AD5263BRUZ20
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4338 PCS
- Package
- TSSOP-24
- Series
- Data Acquisition - Digital Potentiometers
Replacement verdict
Compatible functional replacement candidate
The AD5263BRUZ20 and AD5263BRU20 are functionally equivalent quad-channel digital potentiometers from Analog Devices, sharing identical resistance values, channel counts, and package types. The primary distinction lies in the Z suffix, which denotes RoHS compliance for the AD5263BRUZ20. Both parts are suitable for direct substitution in most applications, provided that lead-free manufacturing requirements are considered.
Resistance Value
High match
Channel Count
High match
Package Type
High match
RoHS Compliance
Validation required
Parts at a glance
Part B
AD5263BRU20
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 584 PCS
- Package
- TSSOP-24
- 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 | AD5263BRUZ20 | AD5263BRU20 | Why it matters |
|---|---|---|---|
| Number of Positions | 256 | 256 | Determines the resolution of the digital potentiometer; identical resolution means equivalent adjustment granularity. |
| Number of Taps | 256 | 256 | Defines the number of discrete resistance settings available; matching taps ensures the same wiper positioning behavior. |
| Resistance Value | 20 kΩ | 20 kΩ | The nominal end-to-end resistance directly affects circuit gain, attenuation, and current levels; identical values allow direct substitution. |
| Number of Channels | 4 | 4 | Indicates how many independent potentiometer channels are integrated; matching channel count preserves multi-channel circuit designs. |
| Supply Voltage Range | 4.5 V to 16.5 V (dual ±4.5 V to ±16.5 V) | 4.5 V to 16.5 V (dual ±4.5 V to ±16.5 V) | Defines the operating voltage window; identical ranges ensure compatibility with the same power supply rails. |
| Interface Type | SPI | SPI | Determines the digital communication protocol used for control; matching interfaces allows the same microcontroller firmware to be reused. |
| Package / Case | 20-TSSOP | 20-TSSOP | Physical footprint and pinout must match for drop-in replacement on an existing PCB layout. |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | Ensures the device functions reliably across the intended environmental conditions; matching ranges confirm equivalent thermal capability. |
| RoHS Compliance | RoHS Compliant | Non-RoHS / Leaded | RoHS status affects regulatory compliance and solderability; the Z suffix denotes the lead-free version, which may be required for new designs. |
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Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5263BRUZ20 | AD5263BRU20 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Taper | Linear | Linear |
| Configuration | Potentiometer | Potentiometer |
| Number of Circuits | 4 | 4 |
| Number of Taps | 256 | 256 |
| Resistance(Ohms) | 20k | 20k |
| Interface | I²C, SPI | I²C, SPI |
| Memory Type | Volatile | Volatile |
| Voltage - Supply | 4.5V ~ 16.5V, ±4.5V ~ 7.5V | 4.5V ~ 16.5V, ±4.5V ~ 7.5V |
| Features | Cascade Pin, Selectable Address | Cascade Pin, Selectable Address |
| Tolerance | ±30% | ±30% |
| Temperature Coefficient(Typ) | 30ppm/°C | 30ppm/°C |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
Frequently asked questions
What is the difference between AD5263BRUZ20 and AD5263BRU20?
The AD5263BRUZ20 is the RoHS-compliant, lead-free version of the AD5263BRU20. Both are quad-channel, 20 kΩ digital potentiometers in a 24-lead TSSOP package. The "Z" suffix in AD5263BRUZ20 indicates Pb-free/RoHS compliance, while AD5263BRU20 is the non-RoHS version containing lead in the termination finish.
Are AD5263BRUZ20 and AD5263BRU20 functionally interchangeable?
Yes, they are functionally identical. Both have the same 20 kΩ end-to-end resistance, 256-position resolution, I2C-compatible interface, and quad-channel configuration. The only difference is the package termination finish and RoHS compliance status.
What is the resolution and number of positions for these digital potentiometers?
Both AD5263BRUZ20 and AD5263BRU20 provide 256 positions (8-bit resolution) per channel, with a 20 kΩ nominal end-to-end resistance.
What interface do the AD5263BRUZ20 and AD5263BRU20 use?
Both devices use a 2-wire I2C-compatible serial interface supporting standard and fast modes up to 400 kHz.
What is the operating voltage range for these devices?
Both the AD5263BRUZ20 and AD5263BRU20 operate from a single 2.7 V to 5.5 V supply, or dual ±2.7 V supplies, depending on configuration.
Can AD5263BRU20 be used as a drop-in replacement for AD5263BRUZ20 in a RoHS-compliant assembly?
No. AD5263BRU20 is not RoHS-compliant and contains lead in its termination finish. For RoHS-compliant assemblies, AD5263BRUZ20 must be used. The reverse substitution (AD5263BRUZ20 for AD5263BRU20) is acceptable where RoHS compliance is required or preferred.
What is the package type and pin count for AD5263BRUZ20 and AD5263BRU20?
Both devices are supplied in a 24-lead TSSOP (Thin Shrink Small Outline Package) with the same pinout and footprint.
What are the typical applications for the AD5263BRUZ20 and AD5263BRU20?
Typical applications include programmable gain/attenuation, adjustable power supplies, LCD panel calibration, and general-purpose digital potentiometer functions in industrial, instrumentation, and consumer systems.