Part A
AD5263BRUZ20
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4338 PCS
- Package
- TSSOP-24
- Series
- Acquisição de dados - Potenciômetros Digitais
Replacement verdict
Not a drop-in replacement
The AD5263BRUZ20 and AD5260BRU200 are not drop-in replacements for each other. Although both are single-supply digital potentiometers from Analog Devices, they differ fundamentally in channel count, resistance value, interface protocol, and package footprint, making direct substitution impossible without circuit redesign.
Different channel count
Different resistance value
Different interface protocol
Different package footprint
Parts at a glance
Part B
AD5260BRU200
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6259 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 | AD5263BRUZ20 | AD5260BRU200 | Why it matters |
|---|---|---|---|
| Number of Resistor Channels | 4 | 1 | Determines how many independent programmable resistance elements are available in a single package, directly affecting channel count in a design. |
| Nominal End-to-End Resistance | 20 kΩ | 200 kΩ | Sets the resistance range of the digital potentiometer, which must match the impedance requirements of the target circuit. |
| Resolution (Number of Positions) | 256 | 256 | Defines the number of discrete wiper tap positions, which determines the adjustment granularity of the resistance. |
| Digital Interface | SPI-compatible, I2C-compatible, and up/down interface | SPI-compatible | Determines how the host controller communicates with the device and affects firmware and pin-count requirements. |
| Supply Voltage Range | 4.5 V to 16.5 V (single supply), ±4.5 V to ±8.25 V (dual supply) | 4.5 V to 16.5 V (single supply), ±4.5 V to ±8.25 V (dual supply) | Defines the allowable operating voltage, which must be compatible with the system power rails. |
| Package Type | 20-lead TSSOP | 14-lead TSSOP | Affects PCB footprint, board space, and thermal characteristics, and must be compatible with the assembly layout. |
| 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. |
| Wiper Resistance | 60 Ω typical | 60 Ω typical | Adds a fixed series resistance in the signal path, which can affect accuracy and loading in precision circuits. |
| Nonvolatile Memory | No | No | Determines whether the wiper setting is retained after power loss, which is important for systems requiring a known startup state. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5263BRUZ20 | AD5260BRU200 |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Taper | Linear | Logarithmic |
| Number of Circuits | 4 | 1 |
| Number of Taps | 256 | 256 |
| Resistance(Ohms) | 20k | 200k |
| Memory Type | Volatile | Volatile |
| Voltage - Supply | 4.5V ~ 16.5V, ±4.5V ~ 7.5V | 4.5V ~ 16.5V, ±4.5V ~ 5.5V |
| Temperature Coefficient(Typ) | 30ppm/°C | 35ppm/°C |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 85°C |
| Configuration | Potentiometer | - |
| Interface | I²C, SPI | - |
| Features | Cascade Pin, Selectable Address | - |
| Tolerance | ±30% | - |
Frequently asked questions
What are the key differences between the AD5263BRUZ20 and AD5260BRU200?
The AD5263BRUZ20 is a quad-channel, 20 kΩ digital potentiometer with 256-position resolution, while the AD5260BRU200 is a single-channel, 200 kΩ digital potentiometer with 256-position resolution. The AD5263 offers four independent channels in a TSSOP-14 package, whereas the AD5260 provides one channel in a TSSOP-14 package. Both use a 3-wire SPI-compatible interface and operate from a 2.7 V to 5.5 V single supply or ±2.5 V dual supply.
Are the AD5263BRUZ20 and AD5260BRU200 pin-compatible?
No. Although both devices are offered in a 14-lead TSSOP package, their pin functions differ. The AD5263BRUZ20 uses the pins for four independent potentiometer channels (A, B, and W terminals for each), while the AD5260BRU200 uses the pins for a single potentiometer channel plus additional digital I/O and address pins. They cannot be interchanged without PCB redesign.
Can the AD5263BRUZ20 and AD5260BRU200 be used in the same circuit design?
They can be used in the same system if the design accommodates their different channel counts and resistance values. The AD5263BRUZ20 provides four 20 kΩ channels for multi-channel adjustment, while the AD5260BRU200 provides one 200 kΩ channel for single-channel applications. Both share the same SPI interface protocol and supply voltage range, but the firmware must address the correct number of channels and register maps.
What is the end-to-end resistance tolerance of the AD5263BRUZ20 and AD5260BRU200?
Both the AD5263BRUZ20 and AD5260BRU200 offer ±20% end-to-end resistance tolerance, as specified in the Analog Devices datasheets. The AD5263BRUZ20 has a nominal 20 kΩ resistance, and the AD5260BRU200 has a nominal 200 kΩ resistance. This tolerance applies over the full operating temperature range.
Do the AD5263BRUZ20 and AD5260BRU200 support daisy-chaining?
Yes. Both devices feature a serial data output (SDO) pin that allows multiple devices to be daisy-chained on the same SPI bus. This enables configuration of multiple potentiometers using a single chip select line. The AD5263BRUZ20 can daisy-chain its four channels internally, and multiple AD5260BRU200 devices can be cascaded externally via the SDO pin.
What is the typical power consumption of the AD5263BRUZ20 and AD5260BRU200?
The AD5263BRUZ20 typically draws 1 µA in shutdown mode and approximately 1.5 µA per channel in normal operation at 5 V. The AD5260BRU200 typically draws 1 µA in shutdown mode and approximately 1.5 µA in normal operation at 5 V. Both devices are designed for low-power portable applications.
Are the AD5263BRUZ20 and AD5260BRU200 RoHS compliant?
Yes. Both the AD5263BRUZ20 and AD5260BRU200 are RoHS-compliant, lead-free packages. The "Z" suffix in the part numbers indicates RoHS compliance and a lead-free, halogen-free molding compound. They meet the European Union RoHS Directive 2011/65/EU requirements.
What is the operating temperature range for the AD5263BRUZ20 and AD5260BRU200?
Both the AD5263BRUZ20 and AD5260BRU200 are specified for the industrial temperature range of −40°C to +85°C. This range is consistent across both devices and is suitable for industrial control, instrumentation, and automotive applications where wide temperature operation is required.