Part A
AD5162BRMZ10
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 1695 個数
- Package
- MSOP-10
- Series
- データ取得 - デジタルポテンショメータ
Replacement verdict
Compatible functional replacement candidate
The AD5161BRM50-RL7 can serve as a functional replacement candidate for the AD5162BRMZ10 in applications tolerant of a different nominal resistance and interface configuration, but validation of the digital interface, wiper resistance, and package footprint is required before committing to a drop-in substitution.
Nominal Resistance
Validation required
Digital Interface
Validation required
Wiper Resistance
Validation required
Package Type
High match
Parts at a glance
Part B
AD5161BRM50-RL7
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 2225 個数
- Package
- MSOP-10
- Series
- データ取得 - デジタルポテンショメータ
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 | AD5161BRM50-RL7 | Why it matters |
|---|---|---|---|
| Resistance Value | 10 kΩ | 50 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 or step size of the resistance adjustment. |
| Number of Channels | 2 | 1 | The channel count determines how many independent resistance elements are available in a single package, affecting board space and circuit architecture. |
| Interface Type | SPI | I2C | The digital interface must match the host controller's available bus, so SPI versus I2C compatibility is critical for direct substitution. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | The operating supply range must encompass the system rail voltage to ensure proper operation and logic-level compatibility. |
| Package / Case | 10-TFSOP, 10-MSOP | 10-TFSOP, 10-MSOP | Package footprint and pinout must match for a 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 guarantee specified performance and reliability. |
| Wiper Resistance | ~50 Ω (typical) | ~50 Ω (typical) | Wiper resistance contributes an error term in series with the programmed resistance, affecting accuracy in low-resistance settings. |
| Nonvolatile Memory | No | No | Nonvolatile wiper storage determines whether the resistance setting is retained 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 | AD5161BRM50-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 | 50k |
| 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 AD5161BRM50-RL7 digital potentiometers?
The AD5162BRMZ10 is a dual-channel, 10 kΩ, 256-position digital potentiometer, while the AD5161BRM50-RL7 is a single-channel, 50 kΩ, 256-position digital potentiometer. The AD5162 offers two independent potentiometers in one package, whereas the AD5161 provides one potentiometer. Both use an SPI-compatible interface and are available in 10-lead MSOP packages.
Are the AD5162BRMZ10 and AD5161BRM50-RL7 pin-compatible?
No. The AD5162BRMZ10 is a dual-channel device in a 10-lead MSOP, while the AD5161BRM50-RL7 is a single-channel device also in a 10-lead MSOP. However, the pin functions differ because the AD5162 uses additional pins for the second potentiometer. They are not direct pin-to-pin replacements.
What is the end-to-end resistance tolerance of each device?
The AD5162BRMZ10 has a nominal end-to-end resistance of 10 kΩ with a typical tolerance of ±20%. The AD5161BRM50-RL7 has a nominal end-to-end resistance of 50 kΩ with a typical tolerance of ±30%. These tolerances are specified in the respective manufacturer datasheets.
Can the AD5162BRMZ10 and AD5161BRM50-RL7 operate from the same supply voltage?
Yes. Both devices operate from a single 2.7 V to 5.5 V supply, as specified in their datasheets. This makes them suitable for low-voltage digital potentiometer applications.
What is the interface type for each digital potentiometer?
Both the AD5162BRMZ10 and AD5161BRM50-RL7 use a 3-wire SPI-compatible serial interface. This allows daisy-chaining and communication with standard microcontrollers.
How many positions do the AD5162BRMZ10 and AD5161BRM50-RL7 have?
Both devices provide 256 positions (8-bit resolution) for wiper adjustment. The AD5162BRMZ10 has two independent 256-position potentiometers, while the AD5161BRM50-RL7 has one 256-position potentiometer.
What are the typical applications for these digital potentiometers?
Both devices are used for adjustable gain and offset trimming, programmable filters, and sensor calibration. The AD5162BRMZ10 is preferred when two independent channels are needed, while the AD5161BRM50-RL7 suits single-channel designs requiring a higher resistance value.
Are the AD5162BRMZ10 and AD5161BRM50-RL7 RoHS compliant?
Yes. Both part numbers include the "Z" suffix in the AD5162BRMZ10 and the "-RL7" reel option for the AD5161BRM50-RL7, which indicates RoHS-compliant packaging as stated in the manufacturer's ordering information. Always verify the specific ordering code on the official datasheet.