Part A
AD629BRZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 3376 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 AD629BRZ and AD629BRZ-RL are functionally identical precision difference amplifiers from Analog Devices, sharing the same core die, electrical specifications, and SOIC-8 package; the only distinction is the delivery format, with the -RL suffix denoting tape-and-reel packaging. Either part number can be used interchangeably in the same design, with the selection driven solely by assembly and inventory handling preferences.
Amplifier Function and Topology
High match
Package and Pinout
High match
Electrical Specifications
High match
Delivery Format
High match
Parts at a glance
Part B
AD629BRZ-RL
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 3096 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 | AD629BRZ | AD629BRZ-RL | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Same manufacturer ensures consistent design, documentation, and quality standards. |
| Amplifier Type | Difference Amplifier | Difference Amplifier | Both are difference amplifiers, so the core signal-conditioning function is identical. |
| Number of Circuits | 1 | 1 | Single-channel configuration must match for direct circuit substitution. |
| Package / Case | 8-SOIC | 8-SOIC | Identical package ensures the part fits the same PCB footprint. |
| Mounting Type | Surface Mount | Surface Mount | Same mounting style is required for assembly compatibility. |
| Supply Voltage Range | ±2.5 V to ±18 V (dual) | ±2.5 V to ±18 V (dual) | Matching supply range confirms the part works in the same power environment. |
| Gain | 1 V/V (fixed) | 1 V/V (fixed) | Fixed unity gain must match to preserve signal scaling in the application. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Same temperature rating ensures equivalent environmental performance. |
| Packaging / Delivery Form | Tube | Tape & Reel | Different packaging affects handling and assembly method; the -RL suffix denotes reel packaging for automated pick-and-place, while the base part is supplied in tubes. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD629BRZ | AD629BRZ-RL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Active |
| Amplifier Type | Differential | Differential |
| Number of Circuits | 1 | 1 |
| Slew Rate | 2.1V/µs | 2.1V/µs |
| -3 dB Bandwidth | 500 kHz | 500 kHz |
| Voltage - Input Offset | 100 µV | 100 µV |
| Supply Current | 900µA | 900µA |
| Current - Output / Channel | 25 mA | 25 mA |
| Voltage - Supply Span(Min) | 5 V | 5 V |
| Voltage - Supply Span(Max) | 36 V | 36 V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What is the difference between AD629BRZ and AD629BRZ-RL?
Both are the same AD629 high common-mode voltage difference amplifier in an 8-lead SOIC package with the same electrical specifications. The "-RL" suffix denotes a tape-and-reel packaging option, while AD629BRZ is the standard tube/rail packaging. The silicon die and performance grades are identical.
Are AD629BRZ and AD629BRZ-RL electrically and functionally interchangeable?
Yes. Since both variants share the same die, grade (B grade), package (8-lead SOIC, RoHS-compliant "Z" designation), and datasheet specifications, they are electrically and functionally interchangeable. The only difference is the shipping packaging format.
What does the "RL" suffix indicate on AD629BRZ-RL?
The "RL" suffix indicates tape-and-reel packaging, which is intended for automated pick-and-place assembly lines. AD629BRZ without the suffix is supplied in standard tube/rail packaging. Both contain the same device.
What are the key specifications of the AD629 difference amplifier?
The AD629 is a high common-mode voltage difference amplifier capable of accepting common-mode voltages up to ±270 V while operating on ±15 V supplies. It offers a fixed gain of 1, low gain error, and high common-mode rejection, and is housed in an 8-lead SOIC package in the B grade.
Which package do AD629BRZ and AD629BRZ-RL use?
Both variants are supplied in the 8-lead SOIC package. The "Z" in the part number indicates RoHS-compliant construction. The PCB land pattern and pinout are identical for both variants.
Can AD629BRZ and AD629BRZ-RL be used interchangeably in a design?
Yes, from a design and layout perspective they are interchangeable because the package, pinout, and electrical specifications are the same. The choice between them depends only on the assembly process: tape-and-reel for automated placement versus tube/rail for manual or low-volume handling.
Which variant should be selected for automated production lines?
AD629BRZ-RL, the tape-and-reel variant, is the appropriate choice for automated pick-and-place production lines. AD629BRZ in tube/rail packaging is typically used for prototyping, manual assembly, or low-volume runs.