Part A
AD8552AR
ADI公司
- Lifecycle
- Active
- Stock
- 4828 件
- Package
- SOIC-8
- Series
- 線性放大器-儀器、運算放大器、緩衝放大器
Replacement verdict
Compatible functional replacement candidate
The AD8554ARZ and AD8552AR are both zero-drift, rail-to-rail operational amplifiers from the same Analog Devices family, sharing identical supply voltage range, offset voltage, and temperature specifications. The primary distinction is channel count: the AD8554ARZ is a quad device while the AD8552AR is a dual device, so substitution is feasible only where the reduced channel count and differing package footprint are acceptable to the application.
Channel Count
Not compatible
Package Type
Not compatible
Supply Voltage Range
High match
Input Offset Voltage
High match
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8554ARZ | AD8552AR | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 4 (Quad) | 2 (Dual) | Determines how many independent op-amp channels are available in a single package, directly affecting circuit density and channel count. |
| Package / Case | 14-Lead SOIC | 8-Lead SOIC | Footprint and pin count must match the PCB layout; a different package cannot be dropped into the same board location. |
| Supply Current per Amplifier (typ) | ~0.85 mA | ~0.85 mA | Per-amplifier quiescent current affects total power budget; total package current scales with the number of amplifiers. |
| Input Offset Voltage (max) | 5 µV | 5 µV | Ultra-low offset is the defining characteristic of the AD855x family; matching offset ensures equivalent DC accuracy in precision signal chains. |
| Input Offset Voltage Drift (max) | 0.05 µV/°C | 0.05 µV/°C | Low drift maintains precision over temperature, critical for sensor interfaces and instrumentation applications. |
| Gain Bandwidth Product | 1.5 MHz | 1.5 MHz | GBW sets the achievable closed-loop bandwidth and settling behavior; identical GBW means equivalent AC performance per channel. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Compatible supply range ensures both parts operate in the same single-supply or battery-powered systems. |
| Input Bias Current (typ) | ~50 pA | ~50 pA | Very low bias current enables high-impedance sensor interfacing and minimizes errors in precision front ends. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Identical temperature ratings confirm both parts suit the same industrial and automotive environments. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8552AR | AD8554ARZ |
|---|---|---|
| Part Status | Obsolete | Active |
| Amplifier Type | Zero-Drift | Zero-Drift |
| Number of Circuits | 2 | 4 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 0.4V/µs | 0.4V/µs |
| Gain Bandwidth Product | 1.5 MHz | 1.5 MHz |
| Current - Input Bias | 10 pA | 10 pA |
| Voltage - Input Offset | 1 µV | 1 µV |
| Supply Current | 850µA (x2 Channels) | 850µA (x4 Channels) |
| Current - Output / Channel | 30 mA | 30 mA |
| Voltage - Supply Span(Min) | 2.7 V | 2.7 V |
| Voltage - Supply Span(Max) | 5 V | 5 V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the primary differences between the AD8554ARZ and the AD8552AR?
The AD8554ARZ is a quad-channel zero-drift operational amplifier, while the AD8552AR is a dual-channel zero-drift operational amplifier. Both share the same core amplifier architecture and are specified for 2.7 V to 5 V single-supply operation, but the AD8554ARZ integrates four amplifiers in a 14-lead SOIC package, whereas the AD8552AR integrates two amplifiers in an 8-lead SOIC package.
Are the AD8554ARZ and AD8552AR electrically identical on a per-amplifier basis?
Yes. Both devices are members of the same zero-drift amplifier family and share the same per-channel specifications, including typical offset voltage of 1 µV, offset voltage drift of 0.005 µV/°C, and rail-to-rail input and output operation. The primary difference is the number of integrated amplifiers and the package pinout.
Can the AD8554ARZ be used as a drop-in replacement for the AD8552AR?
No. The AD8554ARZ is a 14-lead quad device and the AD8552AR is an 8-lead dual device, so the packages and pinouts are not compatible. A board designed for the AD8552AR cannot accept the AD8554ARZ without a layout change, and unused amplifiers in the quad device would require proper termination.
What supply voltage range do the AD8554ARZ and AD8552AR support?
Both devices are specified for single-supply operation from 2.7 V to 5 V, and they also support dual-supply operation within the corresponding total supply range. Designers should verify the exact supply limits and derating requirements against the respective manufacturer datasheets.
What are the typical offset voltage and drift specifications for these amplifiers?
Both the AD8554ARZ and AD8552AR are zero-drift amplifiers with typical offset voltage of 1 µV and typical offset voltage drift of 0.005 µV/°C. These low offset and drift characteristics make them suitable for precision sensor signal conditioning and low-level DC measurement applications.
Do the AD8554ARZ and AD8552AR support rail-to-rail input and output?
Yes. Both devices feature rail-to-rail input and output swing, allowing signal excursions close to both supply rails. This is beneficial in low-voltage single-supply designs where maximizing dynamic range is important.
Which package types are available for the AD8554ARZ and AD8552AR?
The AD8554ARZ is offered in a 14-lead SOIC package, and the AD8552AR is offered in an 8-lead SOIC package. The "ARZ" and "AR" suffixes in the part numbers denote the SOIC package and the corresponding temperature/quality grade per the manufacturer's ordering guide.
Are the AD8554ARZ and AD8552AR suitable for automotive or extended-temperature applications?
Both devices are specified for the industrial temperature range of −40 °C to +125 °C. Designers requiring automotive qualification should confirm the specific grade and qualification status against the manufacturer's datasheet and ordering information, as the standard ARZ/AR grades are not automatically automotive-qualified.