Part A
AD5254BRUZ10
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 5455 PCS
- Package
- TSSOP-20
- Series
- Acquisition de données - potentiomètres numériques
Replacement verdict
Compatible functional replacement candidate
The AD5253BRUZ100 is not a direct drop-in replacement for the AD5254BRUZ10 due to differences in channel count, nominal resistance, and interface configuration. However, both devices share the same quad-channel digital potentiometer architecture, I2C control interface, TSSOP-20 package footprint, and overlapping operating voltage range, making the AD5253BRUZ100 a viable functional substitute in applications where a single-channel 100 kΩ configuration is acceptable and firmware addressing can be adapted.
Channel Count
Validation required
Nominal Resistance
Not compatible
Package Type
High match
Interface Type
High match
Parts at a glance
Part B
AD5253BRUZ100
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 5303 PCS
- Package
- TSSOP-20
- Series
- Acquisition de données - potentiomètres numériques
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD5254BRUZ10 | AD5253BRUZ100 | Why it matters |
|---|---|---|---|
| Number of Positions | 256 | 64 | Determines the resolution of resistance adjustment; a 256-position device offers finer wiper steps than a 64-position device. |
| Number of Channels | 4 | 4 | Both provide four independent potentiometer channels, allowing multiple resistance settings in one package. |
| End-to-End Resistance | 10 kΩ | 100 kΩ | Sets the nominal resistance range; this directly affects the current and voltage levels in the target circuit. |
| Interface Type | I²C | I²C | Both use the same serial interface, simplifying firmware and bus compatibility. |
| Wiper Resistance | 200 Ω typical | 200 Ω typical | Low wiper resistance minimizes signal loss and loading effects in the signal path. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Compatible with common logic and analog supply rails, enabling direct substitution in many designs. |
| Nonvolatile Memory | Yes (EEPROM) | Yes (EEPROM) | Retains wiper settings after power loss, eliminating the need for reinitialization on startup. |
| Package Type | 20-Lead TSSOP | 20-Lead TSSOP | Identical footprint allows drop-in replacement without PCB layout changes. |
| Operating Temperature Range | -40°C to +105°C | -40°C to +105°C | Both support industrial temperature ranges, ensuring reliable operation in harsh environments. |
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 | AD5254BRUZ10 | AD5253BRUZ100 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Taper | Linear | Linear |
| Configuration | Potentiometer | Potentiometer |
| Number of Circuits | 4 | 4 |
| Number of Taps | 256 | 64 |
| Resistance(Ohms) | 10k | 100k |
| Interface | I²C | I²C |
| Memory Type | Non-Volatile | Non-Volatile |
| Voltage - Supply | 2.7V ~ 5.5V, ±2.25V ~ 2.75V | 2.7V ~ 5.5V, ±2.25V ~ 2.75V |
| Features | Selectable Address | Selectable Address |
| Tolerance | ±20% | ±20% |
| Temperature Coefficient(Typ) | 650ppm/°C | 650ppm/°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 AD5254BRUZ10 and AD5253BRUZ100?
The AD5254BRUZ10 is a quad-channel, 10 kΩ digital potentiometer with 256 positions and nonvolatile memory, while the AD5253BRUZ100 is a quad-channel, 100 kΩ digital potentiometer with 64 positions and nonvolatile memory. Both are 4-channel devices, but they differ in end-to-end resistance, resolution, and interface timing characteristics.
Are the AD5254BRUZ10 and AD5253BRUZ100 pin-compatible?
Yes, both devices are offered in the same 20-lead TSSOP package (RU-20) and share the same pinout, allowing for a common PCB layout. However, designers must verify that the different resistance values and resolution do not affect circuit performance before substituting one for the other.
What is the resolution of each device?
The AD5254BRUZ10 provides 256 positions (8-bit resolution) per channel, while the AD5253BRUZ100 provides 64 positions (6-bit resolution) per channel. The AD5254 offers finer adjustment steps, which is important for applications requiring precise wiper settings.
What are the end-to-end resistance values and tolerances?
The AD5254BRUZ10 has a 10 kΩ nominal end-to-end resistance, and the AD5253BRUZ100 has a 100 kΩ nominal end-to-end resistance. Both devices typically specify a resistance tolerance of ±30% over the full temperature range, as detailed in the respective Analog Devices datasheets.
Do both devices support nonvolatile wiper memory?
Yes, both the AD5254BRUZ10 and AD5253BRUZ100 include nonvolatile EEPROM memory that retains the wiper position after power-down. This allows the devices to power up in a known state without requiring external microcontroller intervention.
What digital interface do these digital potentiometers use?
Both devices use a 2-wire I²C-compatible serial interface. The AD5254BRUZ10 supports standard and fast I²C modes up to 400 kHz, and the AD5253BRUZ100 supports similar I²C speeds. The interface allows read and write access to the wiper registers and EEPROM.
Can the AD5254BRUZ10 and AD5253BRUZ100 be used in daisy-chain or multi-device configurations?
Yes, both devices feature two address pins that allow up to four devices to be connected on the same I²C bus. This enables multi-device configurations without additional bus hardware, as long as the addresses are set uniquely.
What are the typical operating voltage ranges for these devices?
Both the AD5254BRUZ10 and AD5253BRUZ100 operate from a single 2.7 V to 5.5 V supply, or from dual ±2.5 V supplies. This wide operating range makes them suitable for both 3 V and 5 V systems.