Part A
AD8652ARZ
ADI公司
- Lifecycle
- Active
- Stock
- 2789 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 AD8651AR-REEL is a viable functional substitute for the AD8652ARZ in single-channel signal-chain designs, sharing the same CMOS input architecture, supply range, and unity-gain stability. The primary distinction is channel count, so the AD8651AR-REEL suits applications where one amplifier per package is sufficient, while the AD8652ARZ remains preferable for dual-channel layouts. Verify board-level pinout and thermal considerations before final qualification.
Channel Count
Validation required
Supply Voltage Range
High match
Input Architecture
High match
Package Type
Validation required
Parts at a glance
Part B
AD8651AR-REEL
ADI公司
- Lifecycle
- Active
- Stock
- 7710 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 | AD8652ARZ | AD8651AR-REEL | Why it matters |
|---|---|---|---|
| Number of Amplifiers | 2 (dual) | 1 (single) | Determines channel count; a dual cannot directly replace a single in a one-channel circuit without layout changes, and vice versa. |
| Gain Bandwidth Product | 50 MHz | 50 MHz | Sets the achievable closed-loop bandwidth and AC performance; matching GBW supports similar high-frequency behavior. |
| Input Offset Voltage (max) | 250 µV | 250 µV | Low offset improves DC accuracy in precision signal chains; identical offset specs mean comparable DC error. |
| Input Voltage Noise Density | 4.5 nV/√Hz | 4.5 nV/√Hz | Governs noise floor for low-level signals; equal noise density yields similar SNR performance. |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | Defines compatible power rails; identical range allows use in the same single-supply systems. |
| Quiescent Current per Amplifier | 2.3 mA | 2.3 mA | Affects power budget; matching per-amplifier current keeps power consumption comparable per channel. |
| Slew Rate | 41 V/µs | 41 V/µs | Limits large-signal transient response; equal slew rate supports similar dynamic performance. |
| Package / Pin Count | 8-lead SOIC | 8-lead SOIC | Pinout differs between single and dual devices despite same package, so board layout and pin mapping are not interchangeable. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Confirms suitability for industrial temperature environments; identical ratings allow use in the same thermal conditions. |
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 | AD8652ARZ | AD8651AR-REEL |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Series | DigiTrim® | DigiTrim® |
| Part Status | Active | Obsolete |
| Amplifier Type | CMOS | Voltage Feedback |
| Number of Circuits | 2 | 1 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 41V/µs | 41V/µs |
| Gain Bandwidth Product | 50 MHz | 50 MHz |
| Current - Input Bias | 1 pA | 1 pA |
| Voltage - Input Offset | 90 µV | 100 µV |
| Supply Current | 17.5mA | 9.5mA |
| Current - Output / Channel | 40 mA | 40 mA |
| Voltage - Supply Span(Min) | 2.7 V | 2.7 V |
| Voltage - Supply Span(Max) | 5.5 V | 5.5 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 AD8652ARZ and the AD8651AR-REEL?
The AD8652ARZ is a dual-channel, precision CMOS operational amplifier supplied in an 8-lead SOIC package, while the AD8651AR-REEL is a single-channel version of the same amplifier family supplied in an 8-lead SOIC package on tape and reel. The core difference is channel count (dual vs. single) and packaging format (tube/tray vs. reel).
Are the AD8652ARZ and AD8651AR-REEL electrically identical per channel?
Yes. Both devices share the same per-channel core specifications from the Analog Devices AD8651/AD8652 datasheet, including a 50 MHz gain bandwidth product, 41 V/µs slew rate, and low input voltage noise of approximately 5 nV/√Hz. The AD8652ARZ simply integrates two of these amplifiers in one package.
What is the supply voltage range for these amplifiers?
Both the AD8652ARZ and AD8651AR-REEL operate from a single supply of 2.7 V to 5.5 V, making them suitable for low-voltage, single-supply signal conditioning applications.
Can the AD8651AR-REEL be used as a drop-in replacement for one channel of the AD8652ARZ?
Functionally, one channel of the AD8652ARZ matches the AD8651AR-REEL, but they are not pin-for-pin interchangeable because the dual device uses different pin assignments for the second channel and shared power pins. A PCB redesign or re-layout is required when substituting between the single and dual versions.
What package and pin count do these devices use?
Both the AD8652ARZ and AD8651AR-REEL are offered in an 8-lead SOIC package (the "R" suffix in the ordering code denotes SOIC). The AD8652ARZ uses all eight pins for two amplifiers plus supply, while the AD8651AR-REEL uses the same footprint for a single amplifier with standard single-op-amp pinout.
Why is the AD8651AR-REEL supplied on tape and reel?
The "-REEL" suffix indicates the AD8651AR-REEL is packaged on tape and reel for automated high-volume pick-and-place assembly, whereas the AD8652ARZ is typically supplied in tubes or trays. This affects handling and assembly workflow, not the electrical performance of the device.
What are typical applications for the AD8652ARZ and AD8651AR-REEL?
Both parts are suited to precision signal conditioning, active filtering, photodiode transimpedance amplification, and ADC driving in portable and low-voltage systems. The dual AD8652ARZ is preferred where two matched channels are needed in a compact footprint, while the single AD8651AR-REEL suits space-constrained single-channel designs.