Part A
AD5220BRZ10
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3519 PCS
- Package
- SOIC-8
- Series
- Acquisição de dados - Potenciômetros Digitais
Replacement verdict
Not a drop-in replacement
The AD5220BRZ10 and AD5222BR1M are not functionally interchangeable. The AD5220BRZ10 is a single-channel 10 kΩ digital potentiometer, while the AD5222BR1M is a dual-channel 1 MΩ digital potentiometer. They differ in channel count, end-to-end resistance, package type, and interface configuration, so direct substitution is not possible without circuit redesign.
Different channel count
Different resistance value
Different package type
Different interface configuration
Parts at a glance
Part B
AD5222BR1M
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2404 PCS
- Package
- SOIC-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 | AD5220BRZ10 | AD5222BR1M | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices | Analog Devices | Same manufacturer ensures consistent quality and support. |
| Resistance Value | 10 kΩ | 1 MΩ | Determines the nominal end-to-end resistance, directly affecting circuit impedance and signal levels. |
| Number of Positions | 128 | 128 | Defines the resolution of the digital potentiometer for wiper adjustment. |
| Interface Type | Up/Down (3-wire) | Up/Down (3-wire) | Determines the control protocol required to adjust the wiper position. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Defines the compatible power supply range for the device. |
| Package / Case | 8-SOIC | 8-SOIC | Physical footprint and mounting type must match the PCB layout. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Ensures reliable operation across the intended environmental conditions. |
| Wiper Resistance | 60 Ω (typical) | 200 Ω (typical) | Affects the minimum achievable resistance and signal attenuation in the circuit. |
| Power Dissipation | 0.5 mW (typical) | 0.5 mW (typical) | Indicates thermal limits and suitability for low-power applications. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5220BRZ10 | AD5222BR1M |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Number of Circuits | 1 | 2 |
| Number of Taps | 128 | 128 |
| Resistance(Ohms) | 10k | 1M |
| Memory Type | Volatile | Volatile |
| Voltage - Supply | 2.7V ~ 5.5V | 2.7V ~ 5.5V, ±2.3V ~ 2.7V |
| Temperature Coefficient(Typ) | 800ppm/°C | -35ppm/°C |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Taper | Linear | - |
| Configuration | Potentiometer | - |
| Interface | Up/Down (U/D, CS) | - |
| Tolerance | ±30% | - |
Frequently asked questions
What are the primary differences between the AD5220BRZ10 and AD5222BR1M digital potentiometers?
The AD5220BRZ10 is a single-channel, 10 kΩ, 128-position digital potentiometer with an up/down interface, while the AD5222BR1M is a dual-channel, 1 MΩ, 128-position digital potentiometer with a 3-wire SPI-compatible interface. The AD5220BRZ10 comes in an 8-lead SOIC package, whereas the AD5222BR1M is available in a 14-lead SOIC package.
Are the AD5220BRZ10 and AD5222BR1M pin-compatible?
No. The AD5220BRZ10 is an 8-lead device, and the AD5222BR1M is a 14-lead device. They have different pin counts and pin functions, so they are not pin-compatible and cannot be used as drop-in replacements for each other.
Can the AD5220BRZ10 and AD5222BR1M be used in the same circuit design without modification?
No. The two devices differ in channel count, end-to-end resistance, package size, pinout, and digital interface. A circuit designed for one would require significant layout and firmware changes to accommodate the other.
What is the end-to-end resistance of the AD5220BRZ10 and the AD5222BR1M?
The AD5220BRZ10 has a nominal end-to-end resistance of 10 kΩ. The AD5222BR1M has a nominal end-to-end resistance of 1 MΩ. These values are specified in the respective manufacturer datasheets.
How many channels does each device provide?
The AD5220BRZ10 is a single-channel digital potentiometer. The AD5222BR1M is a dual-channel digital potentiometer, providing two independent digitally controlled variable resistors in one package.
What digital interfaces do the AD5220BRZ10 and AD5222BR1M use?
The AD5220BRZ10 uses a simple up/down (increment/decrement) interface with a chip select input. The AD5222BR1M uses a 3-wire SPI-compatible serial interface for programming the wiper positions.
What are the typical applications for the AD5220BRZ10 versus the AD5222BR1M?
The AD5220BRZ10 is typically used in single-channel trimming and adjustment applications such as volume control, gain setting, and offset adjustment where a 10 kΩ resistance is suitable. The AD5222BR1M is suited for dual-channel applications requiring higher resistance values, such as dual-channel audio volume control, dual-channel sensor calibration, or applications needing two independent 1 MΩ potentiometers.
Do the AD5220BRZ10 and AD5222BR1M operate from the same supply voltage range?
Both devices are specified for operation from a single +2.7 V to +5.5 V supply, according to their respective manufacturer datasheets. However, always verify the exact operating conditions and timing specifications in the official datasheet before design.