Part A
AD5220BRZ10
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3519 PCS
- Package
- SOIC-8
- Series
- Acquisição de dados - Potenciômetros Digitais
Replacement verdict
Compatible functional replacement candidate
The AD5220BRZ10 and AD5220BR100 are functionally compatible digital potentiometers sharing identical architecture, package, and interface characteristics. The primary distinction is the end-to-end resistance value, which directly affects circuit behavior and must be validated against the target application requirements before substitution.
End-to-End Resistance
Not compatible
Package Type
High match
Interface Type
High match
Resolution
High match
Parts at a glance
Part B
AD5220BR100
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2366 PCS
- Package
- SOIC-8
- 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 | AD5220BR100 | Why it matters |
|---|---|---|---|
| End-to-End Resistance | 10 kΩ | 100 kΩ | Sets the nominal resistance range of the digital potentiometer, directly affecting the current through and voltage across the wiper circuit in the target application. |
| Number of Positions | 128 | 128 | Determines the wiper resolution; identical tap count means both parts offer the same adjustment granularity. |
| Number of Potentiometers | 1 | 1 | Indicates how many independent variable resistors are integrated in the package, affecting channel count in the design. |
| Interface Type | Up/Down (3-wire) | Up/Down (3-wire) | Defines the control protocol required from the host controller; matching interfaces allow the same firmware and pin driving scheme. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Specifies the allowable power supply window; identical ranges mean both parts are compatible with the same system rails. |
| Supply Current | 15 µA (typ) | 15 µA (typ) | Affects power budget in low-power and battery-operated designs; matching current draw supports drop-in substitution. |
| 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. |
| Package / Mounting | 8-Lead SOIC, Surface Mount | 8-Lead SOIC, Surface Mount | Determines PCB footprint and assembly compatibility; identical packages allow the same board layout. |
| Wiper Resistance | 60 Ω (typ) | 60 Ω (typ) | Contributes series error to the set resistance; matching wiper resistance preserves circuit accuracy when substituting. |
| Resistance Tolerance | ±30 % | ±30 % | Indicates part-to-part variation of the nominal end-to-end resistance, which impacts absolute accuracy of the programmed value. |
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 | AD5220BRZ10 | AD5220BR100 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Taper | Linear | Linear |
| Configuration | Potentiometer | Potentiometer |
| Number of Circuits | 1 | 1 |
| Number of Taps | 128 | 128 |
| Resistance(Ohms) | 10k | 100k |
| Interface | Up/Down (U/D, CS) | Up/Down (U/D, CS) |
| Memory Type | Volatile | Volatile |
| Voltage - Supply | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Tolerance | ±30% | ±30% |
| Temperature Coefficient(Typ) | 800ppm/°C | 800ppm/°C |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What is the main difference between the AD5220BRZ10 and AD5220BR100?
The primary difference is the end-to-end resistance value: the AD5220BRZ10 has a 10 kΩ nominal resistance, while the AD5220BR100 has a 100 kΩ nominal resistance. Both are single-channel, 128-position digital potentiometers from Analog Devices in an 8-lead SOIC package.
Are the AD5220BRZ10 and AD5220BR100 pin-compatible?
Yes. Both devices are offered in the same 8-lead SOIC (R-8) package and share the same pinout, including terminals A, B, and W, plus the up/down control, chip select, and power supply pins. This allows them to be used on the same PCB footprint.
Can the AD5220BRZ10 and AD5220BR100 be used interchangeably in a design?
Not without verifying the circuit requirements. Although they are pin-compatible, the 10 kΩ and 100 kΩ resistance values affect the rheostat/divider loading, wiper current, bandwidth, and power dissipation. The replacement must be validated against the target circuit's resistance and loading requirements.
What is the resolution of the AD5220BRZ10 and AD5220BR100?
Both devices provide 128 positions (7-bit resolution) with a nominal end-to-end resistance of 10 kΩ for the AD5220BRZ10 and 100 kΩ for the AD5220BR100. The wiper can be set to any of the 128 discrete tap positions.
What supply voltage range do the AD5220BRZ10 and AD5220BR100 support?
Both devices operate from a single supply of 2.7 V to 5.5 V, making them suitable for low-voltage digital control applications. The digital interface is compatible with standard logic levels within this supply range.
What is the typical application difference between the 10 kΩ and 100 kΩ versions?
The AD5220BRZ10 (10 kΩ) is typically used where lower resistance and higher wiper current are acceptable, such as in low-impedance signal conditioning or volume control. The AD5220BR100 (100 kΩ) is used where higher resistance reduces loading on the source, such as in high-impedance sensor trimming or low-power bias adjustment.
Do the AD5220BRZ10 and AD5220BR100 have the same temperature coefficient?
Both devices are specified with a nominal ratiometric temperature coefficient of 5 ppm/°C in the datasheet, but the absolute end-to-end resistance temperature coefficient may differ between the 10 kΩ and 100 kΩ versions. Always consult the specific Analog Devices datasheet for the exact TC specification of each resistance value.
Are the AD5220BRZ10 and AD5220BR100 RoHS compliant?
Yes. The "Z" suffix in both part numbers indicates a RoHS-compliant, lead-free package finish as defined by Analog Devices. Both devices are available in the same 8-lead SOIC package with the same compliance status.