Part A
AD8512ARZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 2506 個数
- Package
- SOIC-8
- Series
- リニアアンプ - 計装用、オペアンプ、バッファアンプ
Replacement verdict
Compatible functional replacement candidate
The AD8512ARZ and AD8512AR-REEL7 are functionally equivalent, sharing the same dual low-noise JFET operational amplifier die, SOIC-8 package, and electrical specifications. The only meaningful distinction is packaging format: the AD8512ARZ is supplied in tube form while the AD8512AR-REEL7 is supplied on 7-inch tape and reel for automated assembly. Either part can serve as a direct functional substitute for the other, with the choice driven by manufacturing handling requirements rather than electrical performance.
Amplifier Function and Channel Count
High match
Package and Pinout
High match
Electrical Specifications
High match
Packaging Format
High match
Parts at a glance
Part B
AD8512AR-REEL7
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 3629 個数
- Package
- SOIC-8
- Series
- リニアアンプ - 計装用、オペアンプ、バッファアンプ
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD8512ARZ | AD8512AR-REEL7 | Why it matters |
|---|---|---|---|
| Amplifier Type | JFET Input, Dual Operational Amplifier | JFET Input, Dual Operational Amplifier | Confirms both parts are the same core amplifier type, so they are functionally interchangeable in circuit design. |
| Number of Channels | 2 | 2 | Channel count must match for direct substitution in dual-op-amp circuit layouts. |
| Gain Bandwidth Product | 8 MHz | 8 MHz | Determines the frequency range over which the amplifier provides useful gain; matching values ensure equivalent AC performance. |
| Input Offset Voltage (Max) | 0.8 mV | 0.8 mV | Affects DC accuracy; identical offset specs mean comparable precision in signal-conditioning applications. |
| Input Bias Current (Typ) | 25 pA | 25 pA | Low JFET input bias current is critical for high-impedance sensor interfaces; matching values preserve input loading behavior. |
| Supply Voltage Range | ±5 V to ±15 V | ±5 V to ±15 V | Defines compatible power rails; identical ranges allow the parts to be used in the same supply architecture. |
| Slew Rate | 20 V/µs | 20 V/µs | Governs large-signal transient response; equal slew rates ensure equivalent dynamic behavior. |
| Package / Mounting | 8-SOIC, Surface Mount | 8-SOIC, Surface Mount | Same package and mounting style allow drop-in replacement on the same PCB footprint. |
| Packaging / Delivery Format | Tube | Tape & Reel (7-inch reel) | Delivery format affects assembly line handling; reel packaging suits automated pick-and-place, while tubes suit manual or low-volume assembly. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8512ARZ | AD8512AR-REEL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Obsolete |
| Amplifier Type | J-FET | J-FET |
| Number of Circuits | 2 | 2 |
| Slew Rate | 20V/µs | 20V/µs |
| Gain Bandwidth Product | 8 MHz | 8 MHz |
| Current - Input Bias | 25 pA | 25 pA |
| Voltage - Input Offset | 100 µV | 100 µV |
| Supply Current | 2.2mA (x2 Channels) | 2.2mA (x2 Channels) |
| Current - Output / Channel | 70 mA | 70 mA |
| Voltage - Supply Span(Min) | 10 V | 10 V |
| Voltage - Supply Span(Max) | 30 V | 30 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 AD8512ARZ and AD8512AR-REEL7?
Both parts are the same AD8512 dual precision JFET operational amplifier in an 8-lead SOIC package. The difference is packaging format: AD8512ARZ is supplied in tube/rail packaging, while AD8512AR-REEL7 is supplied on a 7-inch tape-and-reel for automated assembly. The "Z" suffix in AD8512ARZ denotes RoHS-compliant lead-free construction, whereas AD8512AR-REEL7 is the non-Z (legacy) ordering code.
Are AD8512ARZ and AD8512AR-REEL7 electrically identical?
Yes. Both ordering codes refer to the same AD8512 die and electrical specification: dual JFET-input op amp with low offset voltage, low input bias current, low noise, and 8 MHz gain-bandwidth product. Package, pinout, and specified performance are the same; only the delivery format and RoHS status differ.
Can AD8512AR-REEL7 be used as a drop-in replacement for AD8512ARZ?
Electrically and mechanically they are interchangeable in the same 8-lead SOIC footprint. However, AD8512ARZ is the RoHS-compliant version, so designs requiring lead-free/RoHS compliance should use AD8512ARZ. Verify the current availability status of the non-Z reel code with the manufacturer or authorized distributor before designing it in.
What package do AD8512ARZ and AD8512AR-REEL7 use?
Both are offered in the 8-lead SOIC (Small Outline Integrated Circuit) package, commonly designated R-8 or SOIC_N. The pinout is the standard dual op amp configuration: 1 OUT A, 2 -IN A, 3 +IN A, 4 V-, 5 +IN B, 6 -IN B, 7 OUT B, 8 V+.
Which part should be selected for high-volume automated PCB assembly?
AD8512AR-REEL7 is supplied on 7-inch tape-and-reel, which suits automated pick-and-place lines. AD8512ARZ is typically supplied in tubes/rails, better suited to low-volume or manual assembly. For high-volume RoHS-compliant production, confirm with the distributor whether a RoHS-compliant reel option (Z-grade reel) is available.
Do AD8512ARZ and AD8512AR-REEL7 differ in moisture sensitivity or handling requirements?
Both are the same SOIC-8 body and are handled per standard JEDEC moisture-sensitivity procedures for SOIC packages. Any MSL rating and floor-life data should be taken from the specific manufacturer datasheet and reel/tube labeling for the ordered part number, as packaging format can affect the MSL label applied at shipment.
What are the key verified specifications common to both parts?
Both are dual JFET-input operational amplifiers with 8 MHz gain-bandwidth product, low input bias current (picoamp range), low offset voltage, low voltage noise, and operation on ±5 V to ±15 V dual supplies. For exact limits, consult the Analog Devices AD8512 datasheet, which applies to both ordering codes.