Part A
AD5263BRUZ50
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5280 ПКС
- Package
- TSSOP-24
- Series
- Сбор данных - цифровые потенциометры
Replacement verdict
Not a drop-in replacement
The AD5263BRUZ50 and AD5262BRU200 are not drop-in replacements for each other. Although both are quad-channel digital potentiometers from Analog Devices in the same TSSOP-16 package, they differ fundamentally in end-to-end resistance (50 kΩ vs 200 kΩ), digital interface (SPI vs I²C), and internal architecture (nonvolatile memory with OTP vs volatile memory). These differences affect calibration accuracy, firmware compatibility, and power-up behavior, so the two parts cannot be interchanged without redesigning the surrounding circuit and control software.
Different end-to-end resistance
Different digital interface
Different memory architecture
Different firmware compatibility
Parts at a glance
Part B
AD5262BRU200
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2946 ПКС
- Package
- TSSOP-16
- 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 | AD5263BRUZ50 | AD5262BRU200 | Why it matters |
|---|---|---|---|
| Number of Channels | 4 | 2 | Determines how many independent potentiometer channels are available in the circuit. |
| End-to-End Resistance | 50 kΩ | 200 kΩ | Sets the nominal resistance range and directly affects signal attenuation and current levels. |
| Interface Type | SPI | I2C | Determines the digital communication protocol required by the host controller. |
| Resolution | 8-bit (256 positions) | 8-bit (256 positions) | Defines the number of discrete wiper settings and the achievable adjustment granularity. |
| Supply Voltage Range | 4.5 V to 16.5 V (dual ±4.5 V to ±16.5 V) | 2.7 V to 5.5 V (single) / ±2.7 V (dual) | Must match the system power rails for proper operation and signal swing. |
| Package | 24-lead TSSOP | 16-lead TSSOP | Affects PCB footprint, layout, and mechanical compatibility for drop-in replacement. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +85 °C | Determines suitability for industrial or extended-temperature environments. |
| Wiper Resistance | 60 Ω typical | 60 Ω typical | Adds to the programmed resistance and influences accuracy in low-resistance settings. |
| Nonvolatile Memory | No | No | Indicates whether the wiper setting is retained after power cycling without reprogramming. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5263BRUZ50 | AD5262BRU200 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Taper | Linear | Linear |
| Configuration | Potentiometer | Potentiometer |
| Number of Circuits | 4 | 2 |
| Number of Taps | 256 | 256 |
| Resistance(Ohms) | 50k | 200k |
| 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 AD5263BRUZ50 and AD5262BRU200 digital potentiometers?
The AD5263BRUZ50 is a quad-channel, 50 kΩ digital potentiometer with 256 positions and an SPI-compatible interface, while the AD5262BRU200 is a dual-channel, 200 kΩ digital potentiometer with 256 positions and an SPI-compatible interface. The AD5263 offers four independent channels, whereas the AD5262 provides two channels with a higher end-to-end resistance.
Are the AD5263BRUZ50 and AD5262BRU200 pin-compatible?
No. The AD5263BRUZ50 is supplied in a 24-lead TSSOP package, while the AD5262BRU200 is supplied in a 16-lead TSSOP package. The different pin counts and pinouts prevent direct pin-to-pin substitution without PCB redesign.
Can the AD5263BRUZ50 and AD5262BRU200 operate from the same supply voltage?
Yes. 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, as specified in the Analog Devices datasheets. However, the AD5263 also supports a ±5 V dual-supply operation in certain grades, while the AD5262 is limited to the lower dual-supply range.
What is the resolution and number of positions for each device?
Both the AD5263BRUZ50 and AD5262BRU200 provide 256 positions (8-bit resolution) per channel. The AD5263BRUZ50 has four channels, and the AD5262BRU200 has two channels.
Do the AD5263BRUZ50 and AD5262BRU200 use the same digital interface?
Yes. Both devices use a 3-wire SPI-compatible serial interface. However, the AD5263 includes additional features such as a hardware shutdown pin and a programmable preset pin, while the AD5262 does not provide these specific control pins.
What are the end-to-end resistance tolerances for the AD5263BRUZ50 and AD5262BRU200?
The AD5263BRUZ50 has a nominal end-to-end resistance of 50 kΩ with a ±30% tolerance, while the AD5262BRU200 has a nominal end-to-end resistance of 200 kΩ with a ±30% tolerance, as specified in the Analog Devices datasheets.
Which device is more suitable for applications requiring multiple independent channels?
The AD5263BRUZ50 is more suitable for multi-channel applications because it integrates four independent digital potentiometers in a single package. The AD5262BRU200 provides only two channels, so designs requiring more than two channels would need additional AD5262 devices or a different part.
Are the AD5263BRUZ50 and AD5262BRU200 available in the same operating temperature range?
Yes. Both devices are specified for the industrial temperature range of −40°C to +85°C, as stated in their respective Analog Devices datasheets.