Part A
AD8479BRZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 1818 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 AD8479BRZ and AD8479BRZ-RL are functionally identical, differing only in packaging format: the AD8479BRZ is supplied in tubes, while the AD8479BRZ-RL is supplied in tape-and-reel for automated assembly. Both share the same precision high common-mode voltage difference amplifier die, electrical specifications, and SOIC-8 footprint, making them interchangeable for design and qualification purposes.
Amplifier Function and Topology
High match
Package and Footprint
High match
Electrical Specifications
High match
Packaging Format
High match
Parts at a glance
Part B
AD8479BRZ-RL
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 5855 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 | AD8479BRZ | AD8479BRZ-RL | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Same manufacturer ensures identical design, process, and quality standards. |
| Amplifier Type | Differential Amplifier | Differential Amplifier | Confirms both parts serve the same signal-conditioning function. |
| Number of Circuits | 1 | 1 | Channel count must match for direct circuit substitution. |
| Package / Case | 8-SOIC | 8-SOIC | Identical footprint allows drop-in PCB replacement without layout changes. |
| Mounting Type | Surface Mount | Surface Mount | Assembly method must match for the same board process. |
| Supply Voltage Range | ±2.5 V to ±18 V (dual) | ±2.5 V to ±18 V (dual) | Operating voltage compatibility is essential for functional equivalence. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Thermal ratings must match for the target application environment. |
| Packaging / Delivery Form | Tube | Tape & Reel | Delivery format affects automated assembly handling but not electrical function. |
| Ordering Quantity (per package) | 98 (tube) | 2500 (reel) | Minimum order and reel quantity impact procurement and production planning. |
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 | AD8479BRZ | AD8479BRZ-RL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Active |
| Amplifier Type | General Purpose | General Purpose |
| Number of Circuits | 1 | 1 |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Slew Rate | 8V/µs | 8V/µs |
| -3 dB Bandwidth | 130 kHz | 130 kHz |
| Voltage - Input Offset | 500 µV | 500 µV |
| Supply Current | 550µA | 550µA |
| Current - Output / Channel | 55 mA | 55 mA |
| Voltage - Supply Span(Min) | 5 V | 5 V |
| Voltage - Supply Span(Max) | 36 V | 36 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 AD8479BRZ and AD8479BRZ-RL?
The AD8479BRZ and AD8479BRZ-RL are the same precision high common-mode voltage difference amplifier die in the same 8-lead SOIC package; the suffix difference is the packaging format. AD8479BRZ is supplied in tube/rail packaging, while AD8479BRZ-RL denotes tape-and-reel packaging for automated assembly. Electrical performance is identical per the Analog Devices datasheet.
Are AD8479BRZ and AD8479BRZ-RL electrically and functionally interchangeable?
Yes. Both order codes refer to the same AD8479BRZ device, with identical specifications including gain of 1, ±600 V common-mode voltage range, 130 dB typical CMRR, and ±15 V supply operation. The only distinction is the shipping container (tube vs. tape-and-reel), so they are interchangeable in circuit design.
Which package do AD8479BRZ and AD8479BRZ-RL use?
Both parts are offered in the 8-lead SOIC package (R-8 suffix) with an operating temperature range of −40 °C to +85 °C, as specified in the Analog Devices AD8479 datasheet.
What is the difference between the tube and tape-and-reel options in practice?
AD8479BRZ (tube/rail) is intended for manual handling or low-volume prototyping, while AD8479BRZ-RL (tape-and-reel) is intended for pick-and-place SMT production lines. Reel quantity and orientation follow Analog Devices standard packaging specifications; the electrical grade (B grade) is the same for both.
Do AD8479BRZ and AD8479BRZ-RL share the same datasheet specifications?
Yes. Analog Devices publishes a single AD8479 datasheet covering the AD8479BRZ grade; the -RL suffix is a packaging/order-code variant, not a separate silicon grade. All parametric limits, such as gain error, offset voltage, and common-mode rejection, apply equally to both order codes.
Can AD8479BRZ-RL be used as a drop-in replacement for AD8479BRZ on an existing PCB?
Yes, because both are the same 8-lead SOIC device with identical pinout and footprint. The choice between them affects only the assembly process (tape-and-reel vs. tube feeding), not the PCB land pattern or circuit behavior.
Which order code should be selected for high-volume SMT production?
AD8479BRZ-RL is the appropriate choice for high-volume surface-mount production because tape-and-reel packaging supports automated pick-and-place equipment. AD8479BRZ in tubes is better suited to low-volume or hand-assembly requirements.