Part A
AD8554ARZ
ADI公司
- Lifecycle
- Active
- Stock
- 5191 件
- Package
- SOIC-14
- 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 AD8552ARZ and AD8554ARZ share the same zero-drift amplifier core, supply range, and SOIC package family, so the AD8554ARZ can serve as a functional replacement for the AD8552ARZ when additional channels are needed, provided the board layout accommodates the wider 14-lead footprint and the design accounts for the higher total supply current.
Channel Count
High match
Amplifier Architecture
High match
Package Footprint
Validation required
Supply Current
Validation required
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8552ARZ | AD8554ARZ | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 (dual) | 4 (quad) | Determines how many independent op-amp channels are available in a single package, directly affecting circuit density and channel count. |
| Input Offset Voltage (max) | 5 µV | 5 µV | Ultra-low offset is the defining characteristic of zero-drift amplifiers; matching values means equivalent DC precision per channel. |
| Input Offset Voltage Drift (max) | 0.05 µV/°C | 0.05 µV/°C | Low drift ensures stable precision over temperature, critical for sensor and instrumentation applications. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Defines compatibility with single-supply systems and battery-powered designs. |
| Gain Bandwidth Product | 1.5 MHz | 1.5 MHz | Sets the achievable closed-loop bandwidth and signal frequency handling capability. |
| Input Bias Current (max) | 100 pA | 100 pA | Very low bias current minimizes errors in high-impedance sensor and photodiode interfaces. |
| Supply Current per Amplifier (typ) | 850 µA | 850 µA | Affects total power budget; per-amplifier current is equivalent, though total package current scales with channel count. |
| Package Type | 8-lead SOIC | 14-lead SOIC | Different footprint and pin count affect PCB layout and cannot be drop-in substituted without board redesign. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Confirms both parts are rated for industrial/extended temperature environments. |
| Common-Mode Rejection Ratio (min) | 120 dB | 120 dB | High CMRR rejects common-mode noise, important for precision differential signal conditioning. |
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 | AD8554ARZ | AD8552ARZ |
|---|---|---|
| Part Status | Active | Active |
| Amplifier Type | Zero-Drift | Zero-Drift |
| Number of Circuits | 4 | 2 |
| 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 (x4 Channels) | 850µA (x2 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 is the primary difference between the AD8552ARZ and AD8554ARZ?
The AD8552ARZ is a dual-channel zero-drift operational amplifier, while the AD8554ARZ is a quad-channel zero-drift operational amplifier. Both are members of the Analog Devices AD855x family and share the same core amplifier architecture, but they differ in channel count and package pinout.
Are the AD8552ARZ and AD8554ARZ pin-compatible?
No. The AD8552ARZ is supplied in an 8-lead SOIC package, and the AD8554ARZ is supplied in a 14-lead SOIC package. The different package sizes and pin counts mean they are not drop-in replacements for each other on the same PCB footprint.
Do the AD8552ARZ and AD8554ARZ share the same electrical specifications per amplifier?
Yes. Both devices are based on the same zero-drift amplifier core, so per-channel specifications such as low offset voltage, low offset voltage drift, rail-to-rail input and output swing, and low input bias current are consistent between the two parts. The primary electrical difference is the number of amplifiers integrated in the package.
What supply voltage range do the AD8552ARZ and AD8554ARZ support?
Both devices operate from a single supply of 2.7 V to 5 V, or from dual supplies of ±1.35 V to ±2.5 V, as specified in the Analog Devices datasheet. This makes them suitable for low-voltage precision signal conditioning applications.
Can the AD8554ARZ be used to replace two AD8552ARZ devices in a design?
Functionally, the AD8554ARZ provides four zero-drift amplifiers in one package, which can replace two dual AD8552ARZ devices in terms of channel count. However, the designer must verify package footprint, pinout, thermal considerations, and PCB layout, since the 14-lead SOIC footprint of the AD8554ARZ differs from the 8-lead SOIC footprint of the AD8552ARZ.
What are typical applications for the AD8552ARZ and AD8554ARZ?
Both parts are suited to precision sensor signal conditioning, low-level signal amplification, medical instrumentation, and other applications requiring very low offset voltage and offset drift. The AD8552ARZ is typically chosen where two amplifiers are sufficient, while the AD8554ARZ is used where four amplifiers are needed in a single package to save board space.
Are the AD8552ARZ and AD8554ARZ specified over the same temperature range?
Both devices are specified for the industrial temperature range of −40°C to +125°C, as stated in the Analog Devices datasheet. The A-grade suffix in both part numbers denotes the same grade and temperature specification.
Do the AD8552ARZ and AD8554ARZ have the same package type?
Both are offered in SOIC packages, but with different lead counts: the AD8552ARZ uses an 8-lead SOIC, and the AD8554ARZ uses a 14-lead SOIC. The package family is the same, but the physical dimensions and pin count differ.