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-REEL are functionally identical, sharing the same dual low-noise JFET operational amplifier die, SOIC-8 package, and specified electrical performance. The only distinction is packaging format: the AD8512ARZ is supplied in tube form, while the AD8512AR-REEL is supplied on tape and reel for automated assembly. Either part number can serve as a direct functional substitute for the other, with the choice driven solely by the assembly process requirements.
Amplifier Function and Channel Count
High match
Package Type and Pinout
High match
Electrical Specifications
High match
Packaging Format
Validation required
Parts at a glance
Part B
AD8512AR-REEL
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 6141 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-REEL | Why it matters |
|---|---|---|---|
| Amplifier Type | JFET Input Operational Amplifier | JFET Input Operational Amplifier | Confirms both parts share the same core amplifier topology, ensuring functional equivalence in signal conditioning circuits. |
| Number of Channels | 2 | 2 | Dual-channel configuration must match for drop-in replacement in dual op-amp circuit designs. |
| Gain Bandwidth Product | 8 MHz | 8 MHz | Determines the maximum frequency at which the amplifier provides useful gain; identical GBW ensures equivalent AC performance. |
| Input Offset Voltage (Max) | 0.8 mV | 0.8 mV | Low offset voltage is critical for precision DC applications; matching values confirm equivalent accuracy. |
| Input Bias Current (Typ) | 25 pA | 25 pA | Very low JFET input bias current minimizes errors in high-impedance sensor and photodiode circuits; identical values ensure equivalent performance. |
| Supply Voltage Range | ±4.5 V to ±18 V | ±4.5 V to ±18 V | Defines the operating supply window; matching ranges allow use in the same power rails without redesign. |
| Supply Current per Amplifier (Typ) | 2.2 mA | 2.2 mA | Quiescent current affects power budget and thermal design; identical values confirm equivalent power consumption. |
| Slew Rate | 20 V/µs | 20 V/µs | Slew rate limits large-signal bandwidth and transient response; matching values ensure equivalent dynamic behavior. |
| Package / Mounting | 8-SOIC (Surface Mount) | 8-SOIC (Surface Mount, Tape & Reel) | Both use the same 8-SOIC footprint, but the reel packaging affects assembly line handling and inventory format rather than electrical function. |
| Packaging Format | Tube / Bulk | Tape & Reel | Packaging differs for automated pick-and-place assembly versus manual or low-volume handling; electrically the parts are identical. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8512ARZ | AD8512AR-REEL |
|---|---|---|
| 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-REEL?
Both parts are the same AD8512 dual precision JFET-input operational amplifier in an 8-lead SOIC package. The difference is packaging format: AD8512ARZ is supplied in tube/rail packaging, while AD8512AR-REEL is supplied on tape-and-reel for automated assembly. The "Z" suffix in AD8512ARZ denotes RoHS-compliant lead finish, whereas AD8512AR-REEL reflects the reel packaging option.
Are AD8512ARZ and AD8512AR-REEL electrically and functionally identical?
Yes. Both variants share the same AD8512 die and datasheet specifications, including dual JFET-input architecture, low offset voltage, low input bias current, and low noise. Electrical performance is identical; only the shipping/packaging format differs.
Can AD8512ARZ and AD8512AR-REEL be used interchangeably in a design?
Yes, from an electrical and footprint standpoint they are interchangeable because both are the same AD8512 in an 8-lead SOIC package. The choice depends on the assembly process: tube packaging for manual or low-volume assembly, and tape-and-reel for automated pick-and-place lines.
What package do AD8512ARZ and AD8512AR-REEL use?
Both are offered in an 8-lead SOIC (Small Outline Integrated Circuit) package, consistent with the AD8512AR prefix in the part numbers. PCB land patterns and pinouts are the same for both variants.
Does the "Z" suffix on AD8512ARZ indicate RoHS compliance?
Yes. In Analog Devices nomenclature, the "Z" suffix denotes a RoHS-compliant part with a lead-free finish. AD8512AR-REEL is the reel-packaged ordering variant; designers should confirm the specific RoHS status of the ordered reel variant against the manufacturer's ordering guide and datasheet.
Which variant should be selected for high-volume automated assembly?
AD8512AR-REEL is the appropriate choice for high-volume automated assembly because tape-and-reel packaging is designed for pick-and-place equipment. AD8512ARZ in tube/rail packaging is typically used for prototyping, low-volume, or manual assembly.
Do AD8512ARZ and AD8512AR-REEL differ in temperature range or specifications?
No. Because both are the same AD8512 device, they share the same specified operating temperature range and datasheet parameters. Packaging format does not alter the device's electrical or thermal specifications.