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 AD8554ARZ and AD8552AR-REEL7 are both zero-drift, rail-to-rail operational amplifiers from the same Analog Devices family, sharing identical amplifier core characteristics. The AD8554ARZ is a quad-channel device in a 14-lead SOIC package, while the AD8552AR-REEL7 is a dual-channel device in an 8-lead SOIC package supplied on tape and reel. Because the channel count and package footprint differ, the AD8552AR-REEL7 is not a direct drop-in replacement for the AD8554ARZ; however, where a dual amplifier is acceptable and the board layout is redesigned accordingly, the AD8552AR-REEL7 serves as a functionally compatible candidate with equivalent per-channel performance.
Channel Count
Validation required
Package Type
Validation required
Amplifier Core Specifications
High match
Supply Voltage Range
High match
Parts at a glance
Part B
AD8552AR-REEL7
ADI公司
- Lifecycle
- Active
- Stock
- 8454 件
- Package
- SOIC-8
- Series
- 線性放大器-儀器、運算放大器、緩衝放大器
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-REEL7 | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 4 (Quad) | 2 (Dual) | Determines how many independent op-amp channels are available in a single package; a quad cannot be directly substituted where a dual is required without redesigning the circuit layout. |
| Input Offset Voltage (Max) | 5 µV | 5 µV | Ultra-low offset is the defining characteristic of zero-drift amplifiers; matching values ensure comparable DC precision in sensor and instrumentation signal chains. |
| Input Offset Voltage Drift | 0.005 µV/°C | 0.005 µV/°C | Low drift maintains precision over temperature; identical drift specs mean both parts behave equivalently in thermally varying environments. |
| Gain Bandwidth Product | 1.5 MHz | 1.5 MHz | Sets the achievable closed-loop bandwidth and AC response; equal GBW ensures the same dynamic performance for a given gain configuration. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Defines compatibility with single-supply systems; identical ranges allow the parts to operate in the same power rails without level shifting. |
| Supply Current per Amplifier (Typ) | 850 µA | 850 µA | Affects total power budget; equal per-amplifier current means power consumption scales only with channel count, not part choice. |
| Input Bias Current (Typ) | 50 pA | 50 pA | Very low bias current minimizes errors in high-impedance sources; matching values preserve accuracy in photodiode and pH sensor front ends. |
| Common-Mode Rejection Ratio (Typ) | 130 dB | 130 dB | High CMRR rejects common-mode noise and interference; identical values ensure equivalent rejection performance in differential sensing applications. |
| Package Type | 14-Lead SOIC | 8-Lead SOIC | Footprint and pin count differ, so the two parts are not drop-in compatible; PCB layout must be redesigned when swapping between them. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8554ARZ | AD8552AR-REEL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Obsolete |
| 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 are the key differences between the AD8554ARZ and AD8552AR-REEL7?
The AD8554ARZ is a quad-channel zero-drift operational amplifier in a 14-lead SOIC package, while the AD8552AR-REEL7 is a dual-channel zero-drift operational amplifier in an 8-lead SOIC package supplied on a 7-inch reel. Both share the same AD855x zero-drift amplifier core, but differ in channel count, package pin count, and packaging format.
Are the AD8554ARZ and AD8552AR-REEL7 electrically identical per channel?
Yes. Both devices are members of the AD855x zero-drift amplifier family and share the same per-channel specifications, including low offset voltage, low offset voltage drift, and rail-to-rail input/output operation, as documented in the Analog Devices AD8551/AD8552/AD8554 datasheet. The primary differences are channel count and package.
Can the AD8552AR-REEL7 be used as a drop-in replacement for the AD8554ARZ?
No. The AD8554ARZ is a quad amplifier in a 14-lead SOIC package, whereas the AD8552AR-REEL7 is a dual amplifier in an 8-lead SOIC package. The pin counts, pin functions, and PCB land patterns differ, so a direct drop-in substitution is not possible without a board redesign.
What supply voltage range do the AD8554ARZ and AD8552AR-REEL7 support?
Both devices operate from a single supply of 2.7 V to 5 V or a dual supply of ±1.35 V to ±2.5 V, as specified in the Analog Devices AD8551/AD8552/AD8554 datasheet. Operation beyond these ranges is not specified by the manufacturer.
What is the packaging difference between the AD8554ARZ and AD8552AR-REEL7?
The AD8554ARZ is supplied in a 14-lead SOIC (R-14) package in tube or standard tray format. The AD8552AR-REEL7 is supplied in an 8-lead SOIC (R-8) package on a 7-inch tape-and-reel, which is intended for automated surface-mount assembly lines.
Do both parts share the same temperature range and qualification?
Yes. Both the AD8554ARZ and AD8552AR-REEL7 are specified over the industrial temperature range of −40°C to +125°C, per the Analog Devices AD8551/AD8552/AD8554 datasheet. Both are RoHS-compliant parts, as indicated by the "Z" suffix in the ordering code.
Which part should be selected for a design requiring four zero-drift amplifier channels?
The AD8554ARZ should be selected, as it integrates four zero-drift amplifier channels in a single 14-lead SOIC package. Using the AD8552AR-REEL7 would require two devices to obtain four channels, increasing board area and component count.
Which part is better suited for high-volume automated assembly?
The AD8552AR-REEL7 is supplied on a 7-inch tape-and-reel, which is compatible with automated pick-and-place assembly. The AD8554ARZ is typically supplied in tube or tray format; reel packaging for the quad device would need to be confirmed against the specific Analog Devices ordering guide before use in high-volume automated assembly.