Part A
AD5162BRMZ10
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 1695 Stückzahl
- Package
- MSOP-10
- Series
- Datenerfassung
Replacement verdict
Compatible functional replacement candidate
The AD5162BRMZ10 and AD5161BRM100 are both single-channel digital potentiometers from Analog Devices, but they differ in end-to-end resistance, interface type, and package footprint. The AD5162BRMZ10 offers a 10 kΩ resistance with SPI-compatible interface in a compact MSOP-10 package, while the AD5161BRM100 provides a 100 kΩ resistance with I²C-compatible interface in a 10-lead MSOP. Designers must verify interface compatibility, resistance tolerance requirements, and board layout before substituting one for the other in a given application.
End-to-End Resistance
Validation required
Interface Type
Not compatible
Package Type
High match
Supply Voltage Range
Validation required
Parts at a glance
Part B
AD5161BRM100
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4014 Stückzahl
- Package
- MSOP-10
- Series
- Datenerfassung
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD5162BRMZ10 | AD5161BRM100 | Why it matters |
|---|---|---|---|
| Resistance Value | 10 kΩ | 100 kΩ | Determines the nominal end-to-end resistance of the digital potentiometer, directly affecting the current and voltage range in the target circuit. |
| Number of Positions | 256 | 256 | Defines the wiper resolution; both offer 8-bit adjustment, so resolution is equivalent for substitutability. |
| Number of Channels | 2 | 1 | A dual-channel device can replace two single-channel devices, affecting board space and circuit architecture. |
| Interface Type | SPI | I2C | The digital control bus must match the host controller; SPI and I2C are not directly interchangeable without protocol conversion. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Both operate over the same supply range, so power supply compatibility is maintained. |
| Package Type | 10-Lead MSOP | 10-Lead MSOP | Identical package and pin count simplify PCB layout substitution, though pin functions may differ. |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | Both support industrial temperature ranges, ensuring suitability for harsh environments. |
| Wiper Resistance | 50 Ω typical | 50 Ω typical | Low wiper resistance minimizes signal attenuation and error in voltage divider or rheostat configurations. |
| Nonvolatile Memory | No | No | Without nonvolatile memory, the wiper setting is lost on power-down, requiring reinitialization by the controller. |
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 | AD5162BRMZ10 | AD5161BRM100 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Taper | Linear | Linear |
| Configuration | Potentiometer | Potentiometer |
| Number of Circuits | 2 | 1 |
| Number of Taps | 256 | 256 |
| Resistance(Ohms) | 10k | 100k |
| Interface | SPI | I²C, SPI |
| Memory Type | Volatile | Volatile |
| Voltage - Supply | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Features | - | Cascade Pin, Selectable Address |
| Tolerance | ±20% | ±30% |
| Temperature Coefficient(Typ) | 35ppm/°C | 45ppm/°C |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
Frequently asked questions
What are the key differences between the AD5162BRMZ10 and AD5161BRM100?
The AD5162BRMZ10 is a dual-channel, 10 kΩ digital potentiometer with 256 positions and an SPI-compatible interface, supplied in a 10-lead MSOP package. The AD5161BRM100 is a single-channel, 100 kΩ digital potentiometer with 256 positions and an I²C-compatible interface, supplied in a 10-lead MSOP package. The primary differences are channel count, end-to-end resistance, and digital interface type.
Are the AD5162BRMZ10 and AD5161BRM100 pin-compatible?
No. Although both devices are offered in a 10-lead MSOP package, their pin functions differ because the AD5162 provides two independent potentiometer channels with an SPI interface, while the AD5161 provides one channel with an I²C interface. Pin assignments and control signal requirements are not interchangeable without design changes.
Can the AD5162BRMZ10 and AD5161BRM100 be used as direct replacements for each other?
No. They differ in channel count, end-to-end resistance, and digital control interface. A direct replacement would require validating the number of potentiometer channels, the required resistance value, the host interface protocol, and the PCB layout against the target design requirements.
What digital interface does each device use?
The AD5162BRMZ10 uses an SPI-compatible serial interface. The AD5161BRM100 uses an I²C-compatible serial interface. System firmware and bus wiring must match the respective protocol for each device.
What are the end-to-end resistance values and resolution of these digital potentiometers?
The AD5162BRMZ10 has a 10 kΩ nominal end-to-end resistance with 256 programmable positions. The AD5161BRM100 has a 100 kΩ nominal end-to-end resistance with 256 programmable positions. Both provide 8-bit resolution for wiper setting adjustment.
How many potentiometer channels does each device provide?
The AD5162BRMZ10 is a dual-channel digital potentiometer, providing two independently programmable resistor channels. The AD5161BRM100 is a single-channel digital potentiometer, providing one programmable resistor channel.
What package type do the AD5162BRMZ10 and AD5161BRM100 use?
Both devices are specified in a 10-lead MSOP (Mini Small Outline Package). The package body dimensions are consistent with the MSOP-10 standard, but the internal pin functions and external connections differ between the two parts.
What are typical applications for the AD5162BRMZ10 versus the AD5161BRM100?
The AD5162BRMZ10 is typically used where two independent resistance adjustments are needed, such as dual-channel gain control, offset trimming, or dual programmable voltage dividers with SPI control. The AD5161BRM100 is typically used where a single 100 kΩ programmable resistance is required, such as single-channel gain or offset adjustment with I²C control. Final selection depends on channel count, resistance value, and interface availability in the system.