Part A
AD5252BRUZ1
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4418 PCS
- Package
- TSSOP-14
- Series
- Data Acquisition - Digital Potentiometers
Replacement verdict
Not a drop-in replacement
The AD5252BRUZ1 and AD5253BRU100 are not drop-in replacements for each other. They differ in resistor configuration, nominal resistance, number of positions, and interface protocol, so substituting one for the other requires circuit redesign and firmware changes.
Different resistor configuration
Different nominal resistance
Different position count
Different interface protocol
Parts at a glance
Part B
AD5253BRU100
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 8814 PCS
- Package
- TSSOP-20
- Series
- Data Acquisition - Digital Potentiometers
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 | AD5253BRU100 | Why it matters |
|---|---|---|---|
| Number of Positions | 256 | 64 | Determines the adjustment resolution; a 256-position device offers finer wiper steps than a 64-position device. |
| Number of Channels | 2 | 4 | Affects how many independent resistance paths can be controlled in a single package. |
| End-to-End Resistance | 1 kΩ | 100 kΩ | Sets the nominal resistance range and directly impacts the current and voltage levels in the target circuit. |
| Interface Type | I²C | SPI | Determines the digital communication protocol required by the host controller for programming the device. |
| Wiper Resistance | 60 Ω typical | 60 Ω typical | Adds a fixed series resistance at the wiper; lower values improve accuracy in low-resistance applications. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Defines the compatible logic and analog supply levels for the system design. |
| Nonvolatile Memory | Yes (EEPROM) | Yes (EEPROM) | Allows the wiper setting to be retained across power cycles without reprogramming. |
| Package | 14-Lead TSSOP | 20-Lead TSSOP | Impacts PCB footprint and pin count, affecting layout and assembly compatibility. |
| Operating Temperature Range | -40 °C to +105 °C | -40 °C to +105 °C | Ensures reliable operation across the intended environmental conditions. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD5252BRUZ1 | AD5253BRU100 |
|---|---|---|
| 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 AD5253BRU100?
The AD5252BRUZ1 is a dual-channel, 8-bit digital potentiometer with a 1 kΩ end-to-end resistance, while the AD5253BRU100 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 from Analog Devices.
Are the AD5252BRUZ1 and AD5253BRU100 pin-compatible?
No. The AD5252BRUZ1 is supplied in a 14-lead TSSOP package, while the AD5253BRU100 is supplied in a 20-lead TSSOP package. The different pin counts and pin assignments prevent direct pin-to-pin compatibility.
Can the AD5252BRUZ1 and AD5253BRU100 be used in the same circuit design without modification?
No. They differ in channel count, end-to-end resistance, package size, and pinout. A circuit designed for one device would require layout and possibly firmware changes to accommodate the other.
What is the resolution of the AD5252BRUZ1 and AD5253BRU100?
Both devices are 8-bit digital potentiometers, providing 256 wiper positions (0 to 255) for each channel.
Do the AD5252BRUZ1 and AD5253BRU100 have nonvolatile memory?
Yes. Both the AD5252BRUZ1 and AD5253BRU100 feature nonvolatile EEPROM that retains the wiper setting after power is removed, allowing the devices to power up in a known state.
What is the interface type for the AD5252BRUZ1 and AD5253BRU100?
Both devices use a 2-wire I²C-compatible serial interface, supporting standard and fast modes up to 400 kHz.
What are the typical applications for the AD5252BRUZ1 versus the AD5253BRU100?
The AD5252BRUZ1 (1 kΩ, dual-channel) is suited for low-resistance, two-channel adjustments such as gain control or offset trimming. The AD5253BRU100 (100 kΩ, quad-channel) is suited for higher-resistance, multi-channel applications such as programmable filters, sensor calibration, or multi-rail voltage trimming.
What are the operating voltage ranges for the AD5252BRUZ1 and AD5253BRU100?
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.
Are the AD5252BRUZ1 and AD5253BRU100 RoHS compliant?
Yes. Both the AD5252BRUZ1 and AD5253BRU100 are available in RoHS-compliant packages, as indicated by the "Z" suffix in their part numbers.