Part A
AD5252BRUZ1
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 4418 PCS
- Package
- TSSOP-14
- Series
- Acquisition de données - potentiomètres numériques
Replacement verdict
Compatible functional replacement candidate
The AD5252BRUZ1 and AD5253BRUZ100 are both dual-channel I²C digital potentiometers from Analog Devices in the same TSSOP-14 package, sharing identical supply voltage ranges, interface protocol, and resolution. However, they differ in nominal end-to-end resistance (1 kΩ vs 100 kΩ) and nonvolatile memory architecture, so the AD5253BRUZ100 can serve as a functional substitute only when the circuit is redesigned to accommodate the higher resistance value and the different wiper memory behavior.
End-to-End Resistance
Validation required
Interface Protocol
High match
Package Type
High match
Memory Architecture
Validation required
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 | AD5252BRUZ1 | AD5253BRUZ100 | Why it matters |
|---|---|---|---|
| Number of Positions | 256 | 64 | Determines the resolution of the digital potentiometer; a 256-position device offers finer wiper adjustment than a 64-position device. |
| Number of Channels | 2 | 4 | Indicates how many independent potentiometer channels are available; the AD5253 provides four channels versus two on the AD5252. |
| End-to-End Resistance | 1 kΩ | 100 kΩ | Sets the nominal resistance range of the potentiometer, directly affecting the current and voltage levels in the application circuit. |
| Interface Type | I²C | I²C | Both use I²C, but the AD5252 supports a 400 kHz fast mode while the AD5253 is limited to 400 kHz standard/fast mode; interface compatibility is essential for host communication. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Defines the operating voltage window; both parts share the same range, allowing use in similar low-voltage systems. |
| Nonvolatile Memory | Yes (EEPROM) | Yes (EEPROM) | Both retain wiper settings after power loss, which is critical for applications requiring a known startup state. |
| Package Type | 14-Lead TSSOP | 20-Lead TSSOP | Different pin counts and footprints affect PCB layout and may prevent direct drop-in replacement. |
| Operating Temperature Range | −40°C to +105°C | −40°C to +105°C | Both support industrial temperature ranges, making them suitable for harsh environments. |
| Wiper Resistance | ~50 Ω (typical) | ~50 Ω (typical) | Low wiper resistance minimizes signal attenuation and improves accuracy in voltage divider or rheostat configurations. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5252BRUZ1 | AD5253BRUZ100 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Taper | Linear | Linear |
| Configuration | Potentiometer | Potentiometer |
| Number of Circuits | 2 | 4 |
| Number of Taps | 256 | 64 |
| 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 AD5252BRUZ1 and AD5253BRUZ100?
The AD5252BRUZ1 is a dual-channel, 8-bit digital potentiometer with a 1 kΩ end-to-end resistance, while the AD5253BRUZ100 is a quad-channel, 8-bit digital potentiometer with a 100 kΩ end-to-end resistance. The AD5252 offers two independently programmable channels, whereas the AD5253 provides four channels. Both are nonvolatile, I²C-compatible devices in 14-lead TSSOP packages.
Are the AD5252BRUZ1 and AD5253BRUZ100 pin-compatible?
No. The AD5252BRUZ1 is a dual-channel device in a 14-lead TSSOP, while the AD5253BRUZ100 is a quad-channel device also in a 14-lead TSSOP but with a different pinout to accommodate four potentiometer channels. They are not pin-to-pin replacements.
Can the AD5252BRUZ1 and AD5253BRUZ100 be used in the same circuit design without modification?
No. The two devices differ in channel count, end-to-end resistance (1 kΩ vs. 100 kΩ), and internal register mapping. Circuit designs must account for these differences in resistance, channel quantity, and I²C addressing before substitution.
What is the resolution of the AD5252BRUZ1 and AD5253BRUZ100?
Both devices are 8-bit digital potentiometers, providing 256 wiper positions (0 to 255) per channel. The AD5252BRUZ1 has two channels, and the AD5253BRUZ100 has four channels.
What is the end-to-end resistance tolerance of the AD5252BRUZ1 and AD5253BRUZ100?
The AD5252BRUZ1 has a nominal end-to-end resistance of 1 kΩ, and the AD5253BRUZ100 has a nominal end-to-end resistance of 100 kΩ. Both are specified with a ±20% resistance tolerance over the operating temperature range, as stated in the Analog Devices datasheets.
Do the AD5252BRUZ1 and AD5253BRUZ100 support nonvolatile memory storage of wiper settings?
Yes. Both devices feature nonvolatile EEPROM memory that retains the wiper position after power-down, allowing the potentiometer to return to its stored setting upon power-up without external intervention.
What is the I²C interface speed of the AD5252BRUZ1 and AD5253BRUZ100?
Both devices support I²C-compatible serial interfaces with a maximum clock frequency of 400 kHz (fast mode). This is specified in the Analog Devices datasheets for both the AD5252 and AD5253 families.
What are the operating voltage ranges for the AD5252BRUZ1 and AD5253BRUZ100?
Both devices operate from a single supply voltage range of 2.7 V to 5.5 V, or from dual supplies of ±2.5 V to ±2.7 V, as specified in the Analog Devices datasheets. The digital interface logic levels are compatible with the supply voltage.