Part A
AD8620BRZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 1672 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 AD8620BRZ and AD8620BR-REEL are functionally identical dual precision JFET-input operational amplifiers from the same manufacturer, differing only in packaging format (tube vs. tape-and-reel). Both share the same die, electrical specifications, and B-grade performance, making them fully interchangeable for design and production purposes.
Amplifier Type and Channel Count
High match
Package and Pinout
High match
Electrical Specifications
High match
Operating Temperature Range
High match
Parts at a glance
Part B
AD8620BR-REEL
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 8191 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 | AD8620BRZ | AD8620BR-REEL | Why it matters |
|---|---|---|---|
| Amplifier Type | JFET Input, Precision, Low Noise | JFET Input, Precision, Low Noise | Identical amplifier topology ensures the same signal-conditioning behavior and functional substitutability. |
| Number of Channels | 2 (Dual) | 2 (Dual) | Channel count must match for pin-compatible drop-in replacement in dual-op-amp circuits. |
| Supply Voltage Range | ±5 V to ±13 V | ±5 V to ±13 V | Matching supply range guarantees the part operates correctly in the target system's power rails. |
| Input Offset Voltage (Max) | 250 µV | 250 µV | Offset voltage directly affects DC accuracy; identical limits preserve precision performance. |
| Input Voltage Noise Density | 6 nV/√Hz (typ, 1 kHz) | 6 nV/√Hz (typ, 1 kHz) | Low noise is a key selection criterion; identical noise ensures equivalent SNR in sensitive applications. |
| Gain Bandwidth Product | 25 MHz | 25 MHz | GBW determines achievable closed-loop bandwidth; matching values preserve dynamic response. |
| Slew Rate | 60 V/µs | 60 V/µs | Slew rate limits large-signal response; identical values ensure the same transient behavior. |
| Operating Temperature Range | -40 °C to +125 °C | -40 °C to +125 °C | Matching temperature ratings confirm suitability for the same environmental conditions. |
| Package / Packaging | 8-Lead SOIC (tube) | 8-Lead SOIC (tape and reel) | Same die and package; only the shipping format differs, which affects assembly line handling but not electrical function. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD8620BRZ | AD8620BR-REEL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Obsolete |
| Amplifier Type | J-FET | J-FET |
| Number of Circuits | 2 | 2 |
| Slew Rate | 60V/µs | 60V/µs |
| Gain Bandwidth Product | 25 MHz | 25 MHz |
| Current - Input Bias | 3 pA | 3 pA |
| Voltage - Input Offset | 45 µV | 45 µV |
| Supply Current | 3mA (x2 Channels) | 3mA (x2 Channels) |
| Current - Output / Channel | 45 mA | 45 mA |
| Voltage - Supply Span(Min) | 10 V | 10 V |
| Voltage - Supply Span(Max) | 26 V | 26 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 AD8620BRZ and AD8620BR-REEL?
Both parts are the same AD8620 dual precision JFET-input operational amplifier in the SOIC-8 (R-8) package with the B grade. The difference is packaging format: AD8620BRZ is supplied in tube/tray format, while AD8620BR-REEL is supplied on tape and reel for automated assembly. The "Z" suffix indicates RoHS-compliant lead-free construction per Analog Devices' part numbering convention.
Are AD8620BRZ and AD8620BR-REEL electrically identical?
Yes. Both are the AD8620 B-grade die in the same 8-lead SOIC package, so the electrical specifications are the same: low input bias current (typically 10 pA at 25°C), low offset voltage (B grade, 250 µV max), 25 MHz gain bandwidth, and 50 V/µs slew rate, operating from ±5 V to ±13 V supplies. The only documented difference is the shipping/packaging format.
Can AD8620BR-REEL be used as a drop-in replacement for AD8620BRZ?
Yes, from an electrical and footprint standpoint they are interchangeable because both use the identical SOIC-8 (R-8) package and the same B-grade silicon. The choice between them is driven by assembly method: tape and reel (AD8620BR-REEL) for automated pick-and-place lines, and tubes (AD8620BRZ) for manual or low-volume assembly.
What does the "Z" suffix mean on AD8620BRZ?
Per Analog Devices' part numbering convention, the "Z" suffix denotes a RoHS-compliant, lead-free package. AD8620BR-REEL is the reeled variant of the same B-grade device; designers should confirm the RoHS status of the specific reeled order code against the current Analog Devices datasheet and product page before finalizing a bill of materials.
What are the key specifications of the AD8620 B grade?
The AD8620 is a dual, low-noise, precision JFET-input op amp. Verified B-grade specifications include 250 µV maximum input offset voltage, 10 pA typical input bias current at 25°C, 25 MHz gain bandwidth product, 50 V/µs slew rate, and operation from ±5 V to ±13 V dual supplies. It is specified for the −40°C to +125°C temperature range.
Why would a design choose the reeled AD8620BR-REEL over the tubed AD8620BRZ?
Tape-and-reel packaging is required for high-volume automated surface-mount assembly, where pick-and-place equipment feeds directly from reels. Tubes (AD8620BRZ) are typically used for prototyping, low-volume runs, or manual placement. Since the silicon and package are identical, the decision is purely a manufacturing/logistics one.
Are AD8620BRZ and AD8620BR-REEL suitable for audio and precision instrumentation applications?
Yes. The AD8620 is designed for high-performance audio and precision signal conditioning, offering low noise, low input bias current, and wide bandwidth. Both order codes share these characteristics because they are the same B-grade device; selection between them depends only on the required packaging format for the assembly process.