Part A
AD5252BRUZ1
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 4418 個数
- Package
- TSSOP-14
- 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 AD5252BRUZ1 and AD5254BRUZ100 share the same dual/quad digital potentiometer architecture, 100 kΩ end-to-end resistance, I²C interface, and TSSOP-14/16 family packaging, making the AD5252BRUZ1 a viable functional substitute for the AD5254BRUZ100 in applications where two channels are sufficient. Designers must verify channel count, package footprint, and wiper current budget before committing to a drop-in replacement.
Channel Count
Validation required
End-to-End Resistance
High match
Interface Type
High match
Package Type
Validation required
Parts at a glance
Part B
AD5254BRUZ100
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 4724 個数
- Package
- TSSOP-20
- 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 | AD5254BRUZ100 | AD5252BRUZ1 | Why it matters |
|---|---|---|---|
| Number of Resistor Taps | 256 | 256 | Tap count determines the achievable wiper resolution; identical resolution supports similar adjustment granularity. |
| Number of Potentiometers | 4 | 2 | The number of independent channels affects how many separate resistance settings can be controlled in a design. |
| End-to-End Resistance | 100 kΩ | 1 kΩ | End-to-end resistance sets the nominal resistance range and directly impacts circuit impedance and current levels. |
| Interface Type | I²C | I²C | The digital interface must match the host controller; both using I²C allows similar bus compatibility. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Supply range determines compatibility with system power rails and logic levels. |
| Nonvolatile Memory | Yes (EEPROM) | Yes (EEPROM) | Nonvolatile storage preserves wiper settings across power cycles without host intervention. |
| Package Type | TSSOP-20 | TSSOP-14 | Package footprint and pin count affect PCB layout, board space, and thermal characteristics. |
| Operating Temperature Range | -40°C to +105°C | -40°C to +105°C | Temperature range indicates suitability for industrial or extended-environment applications. |
| Wiper Resistance | ~50 Ω (typical) | ~50 Ω (typical) | Wiper resistance contributes to error in the programmed resistance and affects signal integrity. |
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 | AD5252BRUZ1 | AD5254BRUZ100 |
|---|---|---|
| Part Status | Active | Active |
| Taper | Linear | Linear |
| Configuration | Potentiometer | Potentiometer |
| Number of Circuits | 2 | 4 |
| Number of Taps | 256 | 256 |
| Resistance(Ohms) | 1k | 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 | ±30% | ±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 AD5254BRUZ100 and AD5252BRUZ1?
The AD5254BRUZ100 is a quad-channel, 100 kΩ digital potentiometer with 256 positions and an I²C interface, while the AD5252BRUZ1 is a dual-channel, 1 kΩ digital potentiometer with 256 positions and the same I²C interface. The main differences are channel count (4 vs 2) and end-to-end resistance (100 kΩ vs 1 kΩ).
Are the AD5254BRUZ100 and AD5252BRUZ1 pin-compatible?
No. The AD5254BRUZ100 is a 20-lead TSSOP (RU-20) package, while the AD5252BRUZ1 is a 14-lead TSSOP (RU-14) package. They have different pin counts and pinouts, so they are not pin-compatible.
Can the AD5252BRUZ1 be used as a direct substitute for the AD5254BRUZ100?
No. The AD5252BRUZ1 has only two channels and a 1 kΩ resistance, whereas the AD5254BRUZ100 has four channels and a 100 kΩ resistance. A direct substitution would require redesign to account for fewer channels and a different resistance value.
What is the resolution of the AD5254BRUZ100 and AD5252BRUZ1?
Both devices have 256 positions, which corresponds to 8-bit resolution for each digital potentiometer channel.
What supply voltage range do the AD5254BRUZ100 and AD5252BRUZ1 support?
Both devices operate from a single 2.7 V to 5.5 V supply, or from dual ±2.5 V supplies, as specified in the Analog Devices datasheets.
Do the AD5254BRUZ100 and AD5252BRUZ1 have nonvolatile memory?
Yes. Both devices include nonvolatile EEPROM memory to store the wiper settings, allowing the last programmed position to be retained after power cycling.
What is the typical application difference between the AD5254BRUZ100 and AD5252BRUZ1?
The AD5254BRUZ100 is suited for applications requiring four independent 100 kΩ digitally controlled resistors, such as multi-channel gain and offset adjustment. The AD5252BRUZ1 is suited for dual-channel 1 kΩ applications, such as low-resistance trim or current setting.