Part A
AD5162BRMZ10
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 1695 PCS
- Package
- MSOP-10
- Series
- Acquisição de dados - Potenciômetros Digitais
Replacement verdict
Compatible functional replacement candidate
The AD5161BRM100-RL7 can serve as a functional replacement candidate for the AD5162BRMZ10 in applications where a single-channel, 100 kΩ digital potentiometer with I²C interface is acceptable, provided that the differing channel count, end-to-end resistance, and control interface are validated against the target design requirements.
Channel Count
Validation required
End-to-End Resistance
Validation required
Control Interface
Validation required
Package Type
High match
Parts at a glance
Part B
AD5161BRM100-RL7
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 7006 PCS
- Package
- MSOP-10
- 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 | AD5162BRMZ10 | AD5161BRM100-RL7 | Why it matters |
|---|---|---|---|
| Resistance Value | 10 kΩ | 100 kΩ | The end-to-end resistance sets the nominal impedance range of the digital potentiometer, directly affecting the circuit's gain, attenuation, or bias levels. |
| Number of Positions | 256 | 256 | The number of wiper tap positions determines the resolution of resistance adjustment available to the designer. |
| Number of Channels | 2 | 1 | Dual-channel devices can replace two single potentiometers in one package, saving board space and simplifying control interfaces. |
| Interface Type | SPI | I2C | The digital control interface must match the host controller's available bus, so SPI versus I2C is a critical compatibility factor. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | The operating supply range determines whether the device can be powered from the system's available rail without additional regulation. |
| Package / Mounting | 10-Lead MSOP | 10-Lead MSOP | Package and footprint compatibility is essential for drop-in replacement on an existing PCB layout. |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | The temperature range must cover the application's environmental conditions to ensure reliable operation. |
| Wiper Resistance | 50 Ω typical | 50 Ω typical | Wiper resistance adds a fixed error term to the programmed resistance and affects accuracy in low-resistance settings. |
| Nonvolatile Memory | No | No | Nonvolatile wiper storage allows the device to retain its setting across power cycles without host reinitialization. |
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-RL7 |
|---|---|---|
| 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-RL7 digital potentiometers?
The AD5162BRMZ10 is a dual-channel, 10 kΩ, 256-position digital potentiometer with an SPI-compatible interface, while the AD5161BRM100-RL7 is a single-channel, 100 kΩ, 256-position digital potentiometer with an I²C-compatible interface. The AD5162 offers two independent channels in a 10-lead MSOP package, whereas the AD5161 provides one channel in a 10-lead MSOP package.
Are the AD5162BRMZ10 and AD5161BRM100-RL7 pin-compatible?
No. Although both devices are offered in a 10-lead MSOP package, their pin functions and internal architectures differ. The AD5162 is a dual-channel device with SPI control, while the AD5161 is a single-channel device with I²C control. Pin assignments and external connections are not interchangeable without design changes.
Can the AD5162BRMZ10 directly replace the AD5161BRM100-RL7 in an existing design?
No. The two devices differ in channel count, end-to-end resistance (10 kΩ vs. 100 kΩ), and digital interface (SPI vs. I²C). A direct replacement would require hardware and firmware modifications, and the different resistance value would affect circuit performance.
What are the end-to-end resistance values and tolerances of these two digital potentiometers?
The AD5162BRMZ10 has a nominal end-to-end resistance of 10 kΩ, while the AD5161BRM100-RL7 has a nominal end-to-end resistance of 100 kΩ. Both devices typically offer a resistance tolerance of ±20% or better, as specified in their respective manufacturer datasheets.
What digital interfaces do the AD5162BRMZ10 and AD5161BRM100-RL7 use?
The AD5162BRMZ10 uses an SPI-compatible 3-wire serial interface. The AD5161BRM100-RL7 uses an I²C-compatible 2-wire serial interface. These interfaces are not directly compatible with each other, so the controlling microcontroller or system must support the respective protocol.
What are the typical applications for the AD5162BRMZ10 versus the AD5161BRM100-RL7?
The AD5162BRMZ10 is suited for dual-channel applications requiring 10 kΩ resistance, such as dual-channel gain and offset adjustment, while the AD5161BRM100-RL7 is used in single-channel applications needing 100 kΩ, such as programmable voltage references or single-channel calibration. Both are used in industrial, instrumentation, and consumer electronics for digital trimming and adjustment.
Do both devices operate over the same supply voltage range and temperature range?
Both the AD5162BRMZ10 and AD5161BRM100-RL7 typically operate from a single 2.7 V to 5.5 V supply and are specified over the industrial temperature range of −40°C to +85°C. However, always verify the exact operating conditions from the latest manufacturer datasheets, as specifications may vary by grade or revision.
What are the package and mounting types for the AD5162BRMZ10 and AD5161BRM100-RL7?
Both devices are available in a 10-lead MSOP (Mini Small Outline Package) and are surface-mount components. The AD5162BRMZ10 is RoHS-compliant, and the AD5161BRM100-RL7 is supplied in tape and reel packaging. Package dimensions and thermal characteristics are similar but should be confirmed from the respective datasheets.