Part A
AD629BRZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3376 Stückzahl
- Package
- SOIC-8
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Replacement verdict
Compatible functional replacement candidate
The AD629BRZ and AD629BR-REEL are functionally identical, differing only in packaging format. Both are the same AD629 precision difference amplifier die in the same 8-lead SOIC package with identical electrical specifications, making them fully interchangeable for design and qualification purposes. The sole distinction is the REEL suffix, which denotes tape-and-reel packaging for automated assembly, while the base part is supplied in tube form. Buyers should select based on their manufacturing handling requirements rather than electrical performance.
Package Type
High match
Electrical Specifications
High match
Operating Temperature Range
High match
Packaging Format
Validation required
Parts at a glance
Part B
AD629BR-REEL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4495 Stückzahl
- Package
- SOIC-8
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
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 | AD629BR-REEL | Why it matters |
|---|---|---|---|
| Amplifier Type | Difference Amplifier | Difference Amplifier | Confirms both parts perform the same core function, enabling direct substitution. |
| Number of Circuits | 1 | 1 | Channel count must match for the replacement to fit the same circuit topology. |
| Gain (Fixed) | 1 V/V | 1 V/V | Fixed unity gain determines the signal scaling; a mismatch would alter system transfer function. |
| Input Offset Voltage (Max) | 1 mV | 1 mV | Offset directly affects DC accuracy; identical limits ensure equivalent precision performance. |
| Common-Mode Voltage Range | ±250 V | ±250 V | High common-mode range is the key feature for high-voltage sensing applications. |
| Supply Voltage Range | ±2.5 V to ±18 V | ±2.5 V to ±18 V | Supply compatibility ensures the part operates in the same power rails without redesign. |
| Bandwidth | 500 kHz | 500 kHz | Bandwidth determines the maximum signal frequency the amplifier can handle accurately. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Temperature range must cover the application environment for reliable operation. |
| Package / Mounting | 8-SOIC (Tube) | 8-SOIC (Tape & Reel) | Same package type but different packaging format affects assembly handling and inventory, not electrical function. |
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Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD629BRZ | AD629BR-REEL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Obsolete |
| 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 are the AD629BRZ and AD629BR-REEL, and how do they differ?
Both are the same AD629 high common-mode voltage difference amplifier from Analog Devices in an 8-lead SOIC package, specified over the −40 °C to +85 °C industrial temperature range. The AD629BRZ is supplied in tube form, while the AD629BR-REEL is the identical device supplied on tape and reel for automated assembly. The electrical specifications are the same; only the packaging and shipping format differ.
Are the AD629BRZ and AD629BR-REEL electrically and functionally identical?
Yes. Both part numbers refer to the same AD629BR grade device in the same 8-lead SOIC (R-8) package. The "Z" suffix denotes the RoHS-compliant lead-free package, and the "-REEL" suffix denotes tape-and-reel packaging. The datasheet parameters, pinout, and performance are identical.
Can the AD629BR-REEL be used as a drop-in replacement for the AD629BRZ?
Yes, from an electrical and footprint standpoint they are interchangeable, since both are the same die in the same 8-lead SOIC package. The only practical difference is the delivery format: the AD629BRZ is supplied in tubes and the AD629BR-REEL on tape and reel. The choice depends on the assembly process rather than circuit design.
What is the common-mode voltage range of the AD629?
The AD629 is designed to handle common-mode voltages up to ±270 V while operating from ±15 V supplies, making it suitable for high-voltage current sensing and industrial measurement applications. Designers should confirm the exact limits and supply conditions in the Analog Devices AD629 datasheet for their specific configuration.
What package and pin configuration do the AD629BRZ and AD629BR-REEL use?
Both parts use the 8-lead SOIC package (R-8 suffix) with the standard AD629 pinout: −IN, +IN, and REF connections plus supply and output pins. The pinout is identical between the two orderable part numbers, so PCB land patterns are the same.
Which part number should be selected for high-volume automated assembly?
The AD629BR-REEL is the appropriate choice for high-volume automated pick-and-place assembly because it is supplied on tape and reel. The AD629BRZ, supplied in tubes, is typically used for prototyping, low-volume runs, or manual assembly. Both contain the same device.
Are both the AD629BRZ and AD629BR-REEL RoHS compliant?
Yes. The "Z" suffix in both part numbers indicates the RoHS-compliant, lead-free package option from Analog Devices. Designers should still verify current compliance documentation from the manufacturer or an authorized distributor for the specific lot and date code.