Part A
AD8657ARMZ
ADI公司
- Lifecycle
- Active
- Stock
- 2097 件
- Package
- MSOP-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 AD8657ARMZ and AD8657ARMZ-RL are functionally identical operational amplifiers sharing the same die, package, and electrical specifications; the only distinction is tape-and-reel packaging orientation for automated assembly. Either part number can serve as a direct functional substitute for the other, with selection driven solely by production packaging requirements.
Amplifier Core Specifications
High match
Package and Pinout
High match
Operating Temperature Range
High match
Packaging Format
High match
Parts at a glance
Part B
AD8657ARMZ-RL
ADI公司
- Lifecycle
- Active
- Stock
- 8479 件
- Package
- TSSOP-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 | AD8657ARMZ | AD8657ARMZ-RL | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Same manufacturer ensures identical design, process, and quality standards. |
| Amplifier Type | CMOS Operational Amplifier | CMOS Operational Amplifier | Confirms both parts are the same functional amplifier type, enabling direct substitution. |
| Number of Channels | 2 | 2 | Channel count must match for the part to fit the same circuit topology. |
| Package / Case | 8-Lead MSOP (MSOP-8) | 8-Lead MSOP (MSOP-8) | Identical package ensures the same PCB footprint and assembly compatibility. |
| Mounting Type | Surface Mount | Surface Mount | Same mounting style is required for board-level interchangeability. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Matching supply range guarantees operation in the same power environment. |
| Gain Bandwidth Product | 2.5 MHz | 2.5 MHz | Same bandwidth ensures equivalent AC signal performance in the application. |
| Input Offset Voltage (Max) | 350 µV | 350 µV | Identical offset voltage preserves DC accuracy and precision behavior. |
| Packaging / Ordering Format | Tube / Individual | Tape & Reel (RL) | The -RL suffix denotes tape-and-reel packaging, which affects automated assembly handling but not the electrical function. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8657ARMZ | AD8657ARMZ-RL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Active |
| Amplifier Type | CMOS | CMOS |
| Number of Circuits | 2 | 2 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 0.08V/µs | 0.08V/µs |
| Gain Bandwidth Product | 200 kHz | 200 kHz |
| -3 dB Bandwidth | 305 kHz | 305 kHz |
| Current - Input Bias | 5 pA | 5 pA |
| Voltage - Input Offset | 350 µV | 350 µV |
| Supply Current | 18µA (x2 Channels) | 18µA (x2 Channels) |
| Current - Output / Channel | 12 mA | 12 mA |
| Voltage - Supply Span(Min) | 2.7 V | 2.7 V |
| Voltage - Supply Span(Max) | 18 V | 18 V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What is the difference between AD8657ARMZ and AD8657ARMZ-RL?
Both parts are the same AD8657 dual, precision, low-power CMOS operational amplifier in an 8-lead MSOP (RM) package. The suffix difference is packaging format: AD8657ARMZ is supplied in standard tube/rail packaging, while AD8657ARMZ-RL denotes tape-and-reel packaging for automated assembly. The electrical die and package are identical.
Are AD8657ARMZ and AD8657ARMZ-RL electrically and functionally interchangeable?
Yes. Both orderable part numbers share the same datasheet specifications for the AD8657, including supply voltage range, input offset voltage, input bias current, gain bandwidth, and quiescent current. The only documented distinction is the shipping/packaging format (rail vs. tape-and-reel).
What package do AD8657ARMZ and AD8657ARMZ-RL use?
Both are offered in the 8-lead MSOP package, indicated by the "RM" package designator in the part number. The "Z" suffix denotes RoHS-compliant lead finish per Analog Devices ordering conventions.
What are the key verified specifications of the AD8657?
The AD8657 is a dual, low-power, precision CMOS op amp. Verified datasheet parameters include a supply voltage range of 2.7 V to 5.5 V, low input offset voltage, low input bias current, rail-to-rail input and output, and low quiescent current suitable for portable and precision signal-chain applications. Consult the official Analog Devices AD8657 datasheet for exact limits.
Does the -RL suffix affect the moisture sensitivity level or handling requirements?
No. The -RL suffix designates tape-and-reel packing only. Moisture sensitivity level, reflow profile, and handling requirements are determined by the package (8-lead MSOP) and are the same for both orderable part numbers, as documented in the manufacturer's datasheet and packaging information.
Which part number should be selected for high-volume automated PCB assembly?
AD8657ARMZ-RL is the appropriate choice for automated pick-and-place assembly because it is supplied on tape-and-reel. AD8657ARMZ in rail/tube format is typically used for prototyping, low-volume, or manual assembly.
Can AD8657ARMZ and AD8657ARMZ-RL be mixed on the same production line?
Yes, from an electrical and package standpoint they are identical devices. However, the feeding method differs (tube vs. tape-and-reel), so the pick-and-place equipment must be configured for the corresponding packaging format. Mixing is a logistics decision, not a technical incompatibility.