Part A
AD5206BRZ50
ADI公司
- Lifecycle
- Active
- Stock
- 4036 件
- Package
- SOIC-24
- Series
- 資料獲取-數位電位器
Replacement verdict
Not a drop-in replacement
The AD5206BRZ50 and AD5203AR10 differ fundamentally in channel count, nominal resistance, and digital interface architecture, making them unsuitable as direct substitutes in existing designs. The AD5206BRZ50 provides six independently programmable channels with a 50 kΩ end-to-end resistance and a 3-wire SPI-compatible serial interface, while the AD5203AR10 offers four channels with a 10 kΩ resistance and a different control protocol. These disparities affect board layout, firmware, and analog signal scaling, so redesign and revalidation are required before considering either device in place of the other.
Different channel count
Different nominal resistance
Different digital interface
Different package footprint
Parts at a glance
Part B
AD5203AR10
ADI公司
- Lifecycle
- Active
- Stock
- 6420 件
- Package
- SOIC-24
- Series
- 資料獲取-數位電位器
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD5206BRZ50 | AD5203AR10 | Why it matters |
|---|---|---|---|
| Number of Potentiometers | 6 | 4 | Determines how many independent digitally controlled resistance channels are available in a single package, directly affecting channel count in a design. |
| End-to-End Resistance | 50 kΩ | 10 kΩ | Sets the nominal resistance range of the potentiometer, which must match the impedance requirements of the surrounding circuit. |
| Resolution (Number of Taps) | 256 | 64 | Higher tap count provides finer resistance adjustment steps, improving precision in calibration and control applications. |
| Interface Type | SPI | SPI | Defines the digital communication protocol used to set the wiper position, which must be compatible with the host controller. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Specifies the operating voltage window, ensuring compatibility with the system power rail. |
| Package Type | 24-Lead SOIC | 14-Lead SOIC | Affects PCB footprint, board space, and thermal characteristics, and must be considered for physical drop-in compatibility. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Defines the environmental conditions under which the device is guaranteed to operate within specification. |
| Wiper Resistance | 50 Ω (typical) | 60 Ω (typical) | Adds to the total resistance in the signal path and can affect accuracy, especially in low-resistance settings. |
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 | AD5206BRZ50 | AD5203AR10 |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Number of Circuits | 6 | 4 |
| Number of Taps | 256 | 64 |
| Resistance(Ohms) | 50k | 10k |
| Memory Type | Volatile | Volatile |
| Voltage - Supply | 2.7V ~ 5.5V, ±2.3V ~ 2.7V | 2.7V ~ 5.5V |
| Temperature Coefficient(Typ) | 700ppm/°C | 700ppm/°C |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Taper | Linear | - |
| Configuration | Potentiometer | - |
| Interface | SPI | - |
| Features | Selectable Address | - |
| Tolerance | ±30% | - |
Frequently asked questions
What are the key differences between the AD5206BRZ50 and AD5203AR10 digital potentiometers?
The AD5206BRZ50 is a 6-channel, 8-bit digital potentiometer with a 50 kΩ end-to-end resistance, while the AD5203AR10 is a 4-channel, 6-bit digital potentiometer with a 10 kΩ end-to-end resistance. The AD5206 offers more channels and higher resolution, whereas the AD5203 provides a lower resistance value and fewer channels.
Are the AD5206BRZ50 and AD5203AR10 pin-compatible?
No. The AD5206BRZ50 is available in a 24-lead SOIC (RW-24) package, and the AD5203AR10 is available in a 14-lead SOIC (R-14) package. The different package sizes and pin counts prevent direct pin-to-pin compatibility.
Can the AD5206BRZ50 and AD5203AR10 operate from the same supply voltage?
Yes. Both devices operate from a single 2.7 V to 5.5 V supply, as specified in their respective manufacturer datasheets. However, the digital interface logic levels and current consumption may differ, so the system design should be verified accordingly.
What is the resolution difference between the AD5206BRZ50 and AD5203AR10?
The AD5206BRZ50 has 8-bit resolution (256 positions per channel), while the AD5203AR10 has 6-bit resolution (64 positions per channel). This means the AD5206BRZ50 provides finer adjustment steps for each potentiometer channel.
How do the end-to-end resistance values of the AD5206BRZ50 and AD5203AR10 compare?
The AD5206BRZ50 has a nominal end-to-end resistance of 50 kΩ, and the AD5203AR10 has a nominal end-to-end resistance of 10 kΩ. The resistance tolerance for both is typically ±30% for the A-grade and B-grade versions, as stated in the datasheets.
What are the digital interface types for the AD5206BRZ50 and AD5203AR10?
Both devices use a 3-wire SPI-compatible serial interface. The AD5206BRZ50 has a serial data input (SDI), serial data output (SDO), and clock (CLK) pin, while the AD5203AR10 has SDI and CLK but no SDO pin, so daisy-chaining is not supported on the AD5203AR10.
Which applications are better suited for the AD5206BRZ50 versus the AD5203AR10?
The AD5206BRZ50 is better for applications requiring multiple channels and finer resolution, such as multi-channel gain control or offset adjustment. The AD5203AR10 is better for space-constrained, lower-cost designs needing fewer channels and lower resistance, such as simple volume control or single-channel calibration.
Do the AD5206BRZ50 and AD5203AR10 have the same operating temperature range?
Yes. Both devices are specified for the industrial temperature range of −40°C to +85°C, as listed in their respective datasheets. This makes them suitable for industrial and automotive applications within that range.