Part A
AD8552AR
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4828 PCS
- Package
- SOIC-8
- Series
- Linear - Amplificadores - Instrumentação, OP Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The AD8554ARZ-REEL7 and AD8552AR are both zero-drift, rail-to-rail operational amplifiers from the same Analog Devices AD855x family, sharing identical amplifier core characteristics. The AD8554ARZ-REEL7 is a quad-channel device in a 14-lead SOIC package, while the AD8552AR is a dual-channel device in an 8-lead SOIC package. Because the channel count and package footprint differ, the AD8552AR is not a direct drop-in replacement for the AD8554ARZ-REEL7 in existing quad layouts, but it is a strong functional candidate where fewer channels are acceptable and the board layout can be adapted.
Amplifier Core Specifications
High match
Channel Count
Not compatible
Package Type
Not compatible
Supply Voltage Range
High match
Parts at a glance
Part B
AD8554ARZ-REEL7
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2424 PCS
- Package
- SOIC-14
- Series
- Linear - Amplificadores - Instrumentação, OP Amps, Buffer Amps
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-REEL7 | AD8552AR | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 4 (Quad) | 2 (Dual) | Channel count determines how many independent signal paths can be processed; a quad and a dual are not directly interchangeable in multi-channel designs. |
| Input Offset Voltage (Max) | 5 µV | 5 µV | Ultra-low offset is critical for precision DC amplification; matching values means both offer equivalent DC accuracy per channel. |
| Input Offset Voltage Drift (Typ) | 0.005 µV/°C | 0.005 µV/°C | Low drift maintains precision over temperature; identical drift supports equivalent thermal stability in precision applications. |
| Gain Bandwidth Product | 1.5 MHz | 1.5 MHz | GBW sets the achievable closed-loop bandwidth; matching values indicate comparable AC performance for signal conditioning. |
| 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 low-voltage systems without level shifting. |
| Supply Current per Amplifier (Typ) | 0.85 mA | 0.85 mA | Quiescent current affects power budget; equal per-amplifier current means power scales only with channel count. |
| Input Bias Current (Typ) | 50 pA | 50 pA | Very low bias current minimizes errors in high-impedance sensor interfaces; matching values preserve input accuracy. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Identical temperature ratings ensure both parts suit the same industrial and automotive environments. |
| Package / Mounting | 14-Lead SOIC (surface mount, tape and reel) | 8-Lead SOIC (surface mount) | Different package pin counts and footprints mean the PCB layout must be redesigned; they are not drop-in replacements. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8552AR | AD8554ARZ-REEL7 |
|---|---|---|
| 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 key differences between the AD8554ARZ-REEL7 and the AD8552AR?
The AD8554ARZ-REEL7 is a quad-channel zero-drift operational amplifier supplied in a 14-lead SOIC package and delivered on a 7-inch tape-and-reel, while the AD8552AR is a dual-channel zero-drift operational amplifier in an 8-lead SOIC package supplied in tubes. Both share the Analog Devices AD855x zero-drift family architecture, but differ in channel count, package pin count, and packaging format.
Are the AD8554ARZ-REEL7 and AD8552AR electrically identical per amplifier channel?
Yes. Both devices are members of the same AD855x zero-drift amplifier family and are specified with the same per-channel performance characteristics, including very low offset voltage, low offset voltage drift, and rail-to-rail input and output operation. The primary electrical distinction is the number of integrated amplifier channels (four versus two), not the per-channel specifications.
Can the AD8552AR be used as a drop-in replacement for the AD8554ARZ-REEL7?
No. The AD8554ARZ-REEL7 is a quad device in a 14-lead SOIC package, whereas the AD8552AR is a dual device in an 8-lead SOIC package. The package footprint, pin count, and pin functions differ, so a direct drop-in substitution is not possible without a PCB redesign and validation against the manufacturer datasheets.
What supply voltage range do the AD8554ARZ-REEL7 and AD8552AR 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, consistent with the AD855x family specifications published by Analog Devices. Designs should confirm the exact limits against the respective datasheets for the target operating conditions.
Why is the AD8554ARZ-REEL7 supplied in tape-and-reel while the AD8552AR is supplied in tubes?
The AD8554ARZ-REEL7 suffix "REEL7" indicates a 7-inch tape-and-reel packaging format intended for automated high-volume SMT assembly. The AD8552AR is offered in standard tube packaging. The packaging format affects handling and assembly equipment, not the electrical performance of the devices.
Do both parts share the same zero-drift amplifier technology?
Yes. Both the AD8554ARZ-REEL7 and AD8552AR belong to the Analog Devices AD855x zero-drift operational amplifier family, which uses auto-zeroing/chopper-stabilized techniques to achieve very low offset voltage and offset voltage drift over temperature and time. This makes both suitable for precision, low-frequency signal conditioning applications.
Which part should be selected for a design requiring four precision amplifier channels?
The AD8554ARZ-REEL7 should be selected, as it integrates four zero-drift amplifier channels in a single 14-lead SOIC package, reducing board space and component count compared with using two AD8552AR dual devices. Final selection should be validated against the AD8554 datasheet for the specific application requirements.