Part A
AD8561AR
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4375 PCS
- Package
- SOIC-8
- Series
- Linear - Comparators
Replacement verdict
Compatible functional replacement candidate
The AD8561AR and AD8561AR-REEL are functionally identical, differing only in packaging format. The AD8561AR-REEL is the tape-and-reel variant of the same AD8561AR comparator die, making it a fully compatible functional replacement candidate for automated assembly environments.
Package Type
High match
Functional Specifications
High match
Operating Temperature Range
High match
Packaging Format
High match
Parts at a glance
Part B
AD8561AR-REEL
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2973 PCS
- Package
- SOIC-8
- Series
- Linear - Comparators
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8561AR | AD8561AR-REEL | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Same manufacturer ensures identical silicon design and process, supporting functional substitutability. |
| Part Category | Comparator | Comparator | Both are the same comparator type, so the core function is identical. |
| Package / Case | 8-SOIC | 8-SOIC | Identical package footprint allows drop-in board replacement without layout changes. |
| Mounting Type | Surface Mount | Surface Mount | Same mounting style ensures compatibility with the same PCB assembly process. |
| Number of Channels | 1 | 1 | Single-channel configuration matches, preserving circuit topology. |
| Supply Voltage Range | 3 V to 10 V (single supply) | 3 V to 10 V (single supply) | Identical operating voltage range ensures the part works in the same supply environment. |
| Propagation Delay | 7 ns (typ) | 7 ns (typ) | Same speed performance maintains timing characteristics in the application. |
| Output Type | TTL/CMOS compatible | TTL/CMOS compatible | Matching output logic levels ensure interoperability with downstream digital circuitry. |
| Packaging / Delivery Form | Tube / cut tape (bulk) | Tape & Reel | Delivery form differs; reel packaging suits automated high-volume assembly while tube suits prototyping, but the device itself is identical. |
| Ordering Part Number Suffix | AD8561AR | AD8561AR-REEL | Different orderable part numbers reflect packaging only; electrical performance and footprint remain the same. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8561AR | AD8561AR-REEL |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Obsolete | Obsolete |
| Type | General Purpose | General Purpose |
| Number of Elements | 1 | 1 |
| Output Type | CMOS, Complementary, TTL | CMOS, Complementary, TTL |
| Voltage - Supply, Single/Dual (±) | 3V ~ 10V, ±1.5V ~ 5V | 3V ~ 10V, ±1.5V ~ 5V |
| Voltage - Input Offset (Max) | 7mV @ 5V | 7mV @ 5V |
| Current - Input Bias(Max) | 6µA @ 5V | 6µA @ 5V |
| Current - Quiescent (Max) | 6mA, 3.3mA, 5.5mA | 6mA, 3.3mA, 5.5mA |
| CMRRPSRR(Typ) | 85dB CMRR, 65dB PSRR | 85dB CMRR, 65dB PSRR |
| Propagation Delay(Max) | 9.8ns | 9.8ns |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What is the difference between AD8561AR and AD8561AR-REEL?
The AD8561AR and AD8561AR-REEL are the same AD8561 comparator die and package; the difference is packaging format. AD8561AR is supplied in tube/tray packaging, while AD8561AR-REEL is supplied on tape-and-reel for automated assembly. Electrical and functional specifications are identical.
Are AD8561AR and AD8561AR-REEL electrically and functionally identical?
Yes. Both variants use the same AD8561 comparator and are specified with the same datasheet parameters, including single-supply operation from 3 V to 12 V (and dual-supply operation), 7 ns propagation delay, and TTL/CMOS-compatible output. The -REEL suffix denotes shipping format only.
What package do AD8561AR and AD8561AR-REEL use?
Both are offered in an 8-lead SOIC (Small Outline Integrated Circuit) package, consistent with the "AR" suffix in the AD8561 ordering code. The package outline and pinout are the same for both variants.
Can AD8561AR and AD8561AR-REEL be used interchangeably in a design?
Yes, from an electrical and footprint standpoint they are interchangeable because they are the same device in the same package. The only practical difference is the shipping container, so board-level design and soldering processes are unaffected.
Which variant should be selected for high-volume automated assembly?
AD8561AR-REEL is intended for high-volume pick-and-place assembly because tape-and-reel packaging supports automated feeders. AD8561AR in tube/tray format is typically used for prototyping, low-volume runs, or manual handling.
Do AD8561AR and AD8561AR-REEL differ in temperature range or performance grade?
No. The ordering code suffix -REEL indicates packaging only; it does not denote a different temperature grade or performance bin. Both variants share the same specified operating temperature range and electrical limits as defined in the AD8561 datasheet.
Are AD8561AR and AD8561AR-REEL RoHS compliant?
RoHS status depends on the specific ordering part number and manufacturer revision. Designers should verify the RoHS/lead-free designation for the exact orderable part number on the manufacturer datasheet or an authorized distributor listing before finalizing a bill of materials.