Part A
AD5206BRZ50
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 4036 PCS
- Package
- SOIC-24
- Series
- Acquisition de données - potentiomètres numériques
Replacement verdict
Not a drop-in replacement
The AD5206BRZ50 and AD5203ARZ100 are not drop-in replacements for each other. They differ in channel count, end-to-end resistance, digital interface type, and package footprint, so a direct substitution is not feasible without circuit redesign and firmware changes.
Different channel count
Different end-to-end resistance
Different digital interface
Different package footprint
Parts at a glance
Part B
AD5203ARZ100
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 7236 PCS
- Package
- SOIC-24
- Series
- Acquisition de données - potentiomètres numériques
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 | AD5203ARZ100 | Why it matters |
|---|---|---|---|
| Number of Resistors | 6 | 4 | Determines how many independent potentiometer channels are available in the package, directly affecting circuit channel count and board layout. |
| End-to-End Resistance | 50 kΩ | 100 kΩ | Sets the nominal resistance of each potentiometer, which influences signal attenuation, loading, and power consumption in the target circuit. |
| Number of Positions (Taps) | 256 | 64 | Defines the wiper resolution; more taps allow finer adjustment of the resistance setting. |
| Interface Type | SPI | SPI | Determines the digital communication protocol required to program the device; both use SPI but differ in channel count and data width. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Specifies the allowable power supply range for proper operation and compatibility with system logic levels. |
| Package Type | 24-Lead SOIC | 24-Lead SOIC | Affects PCB footprint, thermal characteristics, and assembly compatibility. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Indicates the environmental conditions under which the device is guaranteed to meet specifications. |
| Wiper Resistance | 50 Ω (typical) | 100 Ω (typical) | Adds to the set resistance and can affect accuracy, especially at low resistance settings. |
| Power Dissipation | Not specified in datasheet | Not specified in datasheet | Thermal limits influence maximum allowable current and reliability in continuous operation. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5206BRZ50 | AD5203ARZ100 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Taper | Linear | Linear |
| Configuration | Potentiometer | Potentiometer |
| Number of Circuits | 6 | 4 |
| Number of Taps | 256 | 64 |
| Resistance(Ohms) | 50k | 100k |
| Interface | SPI | SPI |
| Memory Type | Volatile | Volatile |
| Voltage - Supply | 2.7V ~ 5.5V, ±2.3V ~ 2.7V | 2.7V ~ 5.5V |
| Tolerance | ±30% | ±30% |
| Temperature Coefficient(Typ) | 700ppm/°C | 700ppm/°C |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Features | Selectable Address | - |
Frequently asked questions
What are the main differences between the AD5206BRZ50 and AD5203ARZ100?
The AD5206BRZ50 is a 6-channel, 8-bit digital potentiometer with a 50 kΩ end-to-end resistance, while the AD5203ARZ100 is a 4-channel, 8-bit digital potentiometer with a 100 kΩ end-to-end resistance. The AD5206 offers more channels, whereas the AD5203 provides a higher resistance value per channel.
Are the AD5206BRZ50 and AD5203ARZ100 pin-compatible?
No. The AD5206BRZ50 is available in a 24-lead SOIC package, and the AD5203ARZ100 is available in a 14-lead SOIC package. They have different pin counts and pinouts, so they are not pin-compatible.
What is the resolution of each digital potentiometer?
Both the AD5206BRZ50 and AD5203ARZ100 are 8-bit digital potentiometers, providing 256 programmable positions (0 to 255) per channel.
What are the typical applications for the AD5206BRZ50 and AD5203ARZ100?
Both devices are used for programmable gain adjustment, offset trimming, and volume control in consumer and industrial equipment. The AD5206BRZ50 is suited for multi-channel applications requiring six independent potentiometers, while the AD5203ARZ100 is used where four channels and a higher 100 kΩ resistance are needed.
What is the supply voltage range for these devices?
Both the AD5206BRZ50 and AD5203ARZ100 operate from a single 2.7 V to 5.5 V supply, or from dual ±2.7 V supplies, as specified in the Analog Devices datasheets.
What is the interface type for the AD5206BRZ50 and AD5203ARZ100?
Both devices use a 3-wire SPI-compatible serial interface for programming the wiper positions.
Can the AD5206BRZ50 be used as a direct replacement for the AD5203ARZ100?
No. The AD5206BRZ50 has 6 channels and a 50 kΩ resistance in a 24-lead package, while the AD5203ARZ100 has 4 channels and a 100 kΩ resistance in a 14-lead package. Differences in channel count, resistance, and package prevent direct substitution without design changes.