Part A
AD8564ARZ-REEL7
ADI公司
- Lifecycle
- Active
- Stock
- 3564 件
- Package
- SOIC-16
- Series
- 線性比較器
Replacement verdict
Compatible functional replacement candidate
The AD8564ARZ-REEL7 and AD8564AR-REEL are functionally equivalent quad 16 ns comparators from the same manufacturer, sharing identical core electrical specifications, package footprint, and pinout. The only material distinction is the RoHS-compliant, lead-free construction of the AD8564ARZ-REEL7 versus the leaded (non-RoHS) construction of the AD8564AR-REEL, making the Z-grade variant the preferred drop-in candidate for new designs requiring environmental compliance.
Package Type
High match
Pinout Configuration
High match
Electrical Specifications
High match
RoHS Compliance
Validation required
Parts at a glance
Part B
AD8564AR-REEL
ADI公司
- Lifecycle
- Active
- Stock
- 9968 件
- Package
- SOIC-16
- Series
- 線性比較器
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8564ARZ-REEL7 | AD8564AR-REEL | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Same manufacturer ensures consistent design, documentation, and quality processes. |
| Amplifier Type | Comparator | Comparator | Confirms both parts serve the same core function and are functionally interchangeable in a circuit. |
| Number of Elements | 4 | 4 | Matching channel count is essential for pin-compatible substitution in multi-channel designs. |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | Identical package footprint allows drop-in replacement on the same PCB land pattern. |
| Mounting Type | Surface Mount | Surface Mount | Same mounting method ensures assembly compatibility. |
| Supply Voltage Range | ±4.5V to ±5.5V (or 4.5V to 5.5V single supply) | ±4.5V to ±5.5V (or 4.5V to 5.5V single supply) | Matching supply requirements means the same power rail design can be reused. |
| Propagation Delay | 7 ns (typ) | 7 ns (typ) | Identical speed ensures timing performance is preserved in the application. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Same temperature rating guarantees equivalent environmental robustness. |
| Packaging / Reel Suffix | Tape & Reel (7-inch reel) | Tape & Reel (standard reel) | Reel size affects manufacturing line handling and order quantity; the parts themselves are electrically identical. |
| Part Number Suffix (RoHS) | Z (RoHS-compliant) | Non-Z (legacy, may not be RoHS-compliant) | The "Z" suffix indicates lead-free/RoHS compliance, which matters for regulatory and solder process requirements. |
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 | AD8564ARZ-REEL7 | AD8564AR-REEL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Obsolete |
| Type | General Purpose | General Purpose |
| Number of Elements | 4 | 4 |
| Output Type | CMOS, TTL | CMOS, TTL |
| Voltage - Input Offset (Max) | 7mV @ 5V | 7mV @ 5V |
| Current - Input Bias(Max) | 4µA @ 5V | 4µA @ 5V |
| Current - Quiescent (Max) | 14mA, 14mA, 7mA | 14mA, 14mA, 7mA |
| CMRRPSRR(Typ) | 85dB CMRR, 80dB PSRR | 85dB CMRR, 80dB 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 AD8564ARZ-REEL7 and AD8564AR-REEL?
The primary difference is the package and lead finish designation. AD8564ARZ-REEL7 uses the RoHS-compliant "Z" suffix (lead-free) in a 16-lead SOIC package, supplied in 7-inch tape and reel. AD8564AR-REEL is the non-RoHS (lead-containing) version in the same 16-lead SOIC package, supplied in 13-inch tape and reel. Both are quad 16 V rail-to-rail fast comparators from Analog Devices.
Are AD8564ARZ-REEL7 and AD8564AR-REEL electrically identical?
Yes. Both variants share the same AD8564 silicon die and datasheet specifications, including 16 V rail-to-rail operation, 7 ns typical propagation delay, and 16-lead SOIC pinout. The differences are limited to lead finish (RoHS vs non-RoHS) and reel size.
Can AD8564ARZ-REEL7 be used as a drop-in replacement for AD8564AR-REEL?
Electrically and mechanically, yes, since both are 16-lead SOIC devices with identical pinouts and specifications. However, the substitution must be validated against the target design's RoHS compliance requirements and the manufacturer's documentation, because the lead finish differs.
What is the difference between the REEL7 and REEL suffixes?
The "REEL7" suffix denotes a 7-inch tape and reel packaging format, while "REEL" denotes a 13-inch tape and reel. The reel size affects the quantity per reel and handling for automated assembly, not the device itself.
What are the key specifications of the AD8564?
The AD8564 is a quad rail-to-rail fast comparator operating from a single 16 V supply (or split supplies), with a typical propagation delay of 7 ns, low power consumption, and TTL/CMOS-compatible outputs. It is offered in a 16-lead SOIC package. Designers should confirm exact limits against the official Analog Devices datasheet.
Does the "Z" suffix affect RoHS compliance?
Yes. The "Z" in AD8564ARZ-REEL7 indicates a RoHS-compliant, lead-free lead finish. AD8564AR-REEL lacks the "Z" suffix and is the non-RoHS, lead-containing variant. Designs requiring RoHS compliance should use the Z-suffix part.
Are both variants still recommended for new designs?
Availability and lifecycle status should be verified with Analog Devices or authorized distributors such as DigiKey, Mouser, or TTI before design commitment. The RoHS-compliant AD8564ARZ-REEL7 is generally preferred for new designs where lead-free compliance is required.