Part A
AD5242BRZ10
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3626 PCS
- Package
- SOIC-16
- Series
- Acquisição de dados - Potenciômetros Digitais
Replacement verdict
Not a drop-in replacement
The AD5241BRZ1M and AD5242BRZ10 are not drop-in replacements for each other. Although both are single-supply digital potentiometers from the same Analog Devices AD524x family, they differ in channel count, nominal resistance, and interface configuration, requiring circuit and footprint validation before any substitution.
Different channel count
Different end-to-end resistance
Different interface configuration
Different package option
Parts at a glance
Part B
AD5241BRZ1M
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6341 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 | AD5241BRZ1M | AD5242BRZ10 | Why it matters |
|---|---|---|---|
| End-to-End Resistance | 1 MΩ | 10 kΩ | Determines the nominal resistance range of the digital potentiometer and directly affects the current and voltage levels in the target circuit. |
| Number of Potentiometer Channels | 1 | 2 | Defines how many independent adjustable resistance elements are available, which affects circuit topology and channel count requirements. |
| Interface Type | I²C | I²C | Specifies the digital communication protocol used to program the device, which must match the host controller interface. |
| Resolution | 8-bit (256 positions) | 8-bit (256 positions) | Determines the number of discrete wiper settings and thus the achievable adjustment granularity. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Defines the operating voltage window and compatibility with the system power rail. |
| Package / Mounting Type | 14-Lead SOIC (Surface Mount) | 14-Lead SOIC (Surface Mount) | Affects PCB footprint, assembly process, and physical board space requirements. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Ensures the device operates reliably within the intended environmental conditions of the application. |
| Wiper Resistance | ~60 Ω (typical) | ~60 Ω (typical) | Adds a fixed series resistance at the wiper terminal, influencing accuracy in low-resistance settings. |
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 | AD5242BRZ10 | AD5241BRZ1M |
|---|---|---|
| Part Status | Active | Active |
| Taper | Linear | Linear |
| Configuration | Potentiometer | Potentiometer |
| Number of Circuits | 2 | 1 |
| Number of Taps | 256 | 256 |
| Resistance(Ohms) | 10k | 1M |
| Interface | I²C | I²C |
| Memory Type | Volatile | Volatile |
| Voltage - Supply | 2.7V ~ 5.5V, ±2.3V ~ 2.7V | 2.7V ~ 5.5V, ±2.3V ~ 2.7V |
| Features | Selectable Address | Selectable Address |
| Tolerance | ±30% | -30%, +50% |
| Temperature Coefficient(Typ) | 30ppm/°C | 30ppm/°C |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C |
Frequently asked questions
What are the key differences between the AD5241BRZ1M and AD5242BRZ10?
The AD5241BRZ1M is a single-channel digital potentiometer with a 1 MΩ end-to-end resistance, while the AD5242BRZ10 is a dual-channel digital potentiometer with a 10 kΩ end-to-end resistance. Both are 256-position I²C-compatible devices in 14-lead SOIC packages, but the AD5242 provides two independent channels and a much lower resistance value.
Are the AD5241BRZ1M and AD5242BRZ10 pin-compatible?
No. Although both devices are offered in 14-lead SOIC packages, the AD5242 uses additional pins for the second channel's resistor terminals (RDAC2 A, W, and B), which are not present on the single-channel AD5241. The pin functions therefore differ, and the two devices are not direct drop-in replacements.
What is the resolution and number of positions for each device?
Both the AD5241BRZ1M and AD5242BRZ10 are 256-position digital potentiometers, providing 8-bit resolution for wiper adjustment. Each channel offers 256 discrete tap positions between the A and B terminals.
What digital interface do the AD5241BRZ1M and AD5242BRZ10 use?
Both devices use a 2-wire I²C-compatible serial interface. They support standard I²C addressing and can be daisy-chained or addressed individually on the same bus, depending on the specific address pin configuration.
What are the end-to-end resistance values and tolerances?
The AD5241BRZ1M has a nominal end-to-end resistance of 1 MΩ, while the AD5242BRZ10 has a nominal end-to-end resistance of 10 kΩ. Both are available in ±20% resistance tolerance grades, as specified in the manufacturer datasheets.
Can the AD5241BRZ1M and AD5242BRZ10 operate from the same supply voltage?
Yes. Both devices operate from a single supply voltage range of 2.7 V to 5.5 V, or from dual supplies of ±2.7 V. This makes them compatible with common 3 V and 5 V logic systems.
What are the typical applications for each device?
The AD5241BRZ1M is suited for single-channel applications requiring high resistance values, such as trimming high-impedance circuits or low-current bias adjustments. The AD5242BRZ10 is suited for dual-channel applications requiring lower resistance, such as volume control, gain adjustment, and offset trimming in dual-supply signal chains.
What is the operating temperature range for both devices?
Both the AD5241BRZ1M and AD5242BRZ10 are specified for the industrial temperature range of −40°C to +85°C, as stated in the Analog Devices datasheets.