Part A
AD620ARZ
ADI公司
- Lifecycle
- Active
- Stock
- 6931 件
- Package
- SOIC-8
- Series
- 線性放大器-儀器、運算放大器、緩衝放大器
Replacement verdict
Compatible functional replacement candidate
The AD620ARZ and AD620AR-REEL7 are functionally equivalent instrumentation amplifiers sharing the same core die, electrical specifications, and 8-lead SOIC footprint; the only meaningful distinction is packaging format, with the AD620ARZ supplied in tube and the AD620AR-REEL7 supplied on tape and reel for automated assembly. Either part number can serve as a drop-in replacement for the other in circuit design, with selection driven primarily by manufacturing and handling requirements rather than electrical performance.
Amplifier Function and Gain Configuration
High match
Package and Pinout
High match
Electrical Specifications
High match
Packaging Format
Validation required
Parts at a glance
Part B
AD620AR-REEL7
ADI公司
- Lifecycle
- Active
- Stock
- 4491 件
- Package
- SOIC-8
- Series
- 線性放大器-儀器、運算放大器、緩衝放大器
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD620ARZ | AD620AR-REEL7 | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Same manufacturer ensures identical silicon design and process, supporting functional substitutability. |
| Amplifier Type | Instrumentation Amplifier | Instrumentation Amplifier | Both are instrumentation amplifiers, so they serve the same signal-conditioning role in a circuit. |
| Number of Circuits | 1 | 1 | Single-channel configuration must match for direct board-level replacement. |
| Package / Case | 8-SOIC | 8-SOIC | Identical package footprint allows the parts to be dropped into the same PCB land pattern. |
| Mounting Type | Surface Mount | Surface Mount | Same mounting style is required for physical compatibility on the assembly. |
| Supply Voltage Range | ±2.3 V to ±18 V | ±2.3 V to ±18 V | Matching supply range ensures the part operates correctly in the same power environment. |
| Gain Bandwidth Product | 1 MHz | 1 MHz | Equal bandwidth means AC performance and frequency response remain unchanged after substitution. |
| Input Offset Voltage (max) | 50 µV | 50 µV | Identical offset voltage preserves DC accuracy in precision measurement applications. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Same temperature rating guarantees equivalent environmental robustness. |
| Packaging / Delivery Form | Tube | Tape & Reel | Delivery format differs, affecting automated assembly handling but not electrical function. |
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 | AD620ARZ | AD620AR-REEL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Amplifier Type | Instrumentation | Instrumentation |
| Number of Circuits | 1 | 1 |
| Slew Rate | 1.2V/µs | 1.2V/µs |
| -3 dB Bandwidth | 1 MHz | 1 MHz |
| Current - Input Bias | 500 pA | 500 pA |
| Voltage - Input Offset | 30 µV | 30 µV |
| Supply Current | 900µA | 900µA |
| Current - Output / Channel | 18 mA | 18 mA |
| Voltage - Supply Span(Min) | 4.6 V | 4.6 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 key differences between the AD620ARZ and AD620AR-REEL7?
The AD620ARZ and AD620AR-REEL7 are functionally identical instrumentation amplifiers; the primary difference is packaging and shipping format. The AD620ARZ is supplied in a 8-lead SOIC tube format, while the AD620AR-REEL7 is the same die and package supplied on a 7-inch tape-and-reel for automated assembly. Both share the same electrical specifications, temperature range, and grade.
Are the AD620ARZ and AD620AR-REEL7 electrically interchangeable?
Yes. Both parts are the same AD620A-grade instrumentation amplifier with identical gain equation (G = 49.4 kΩ/RG + 1), supply range of ±2.3 V to ±18 V, and specified performance over the −40°C to +85°C temperature range. They differ only in packaging format, so they are electrically interchangeable in a given design.
What package do the AD620ARZ and AD620AR-REEL7 use?
Both devices are offered in an 8-lead SOIC package (SOIC_N). The AD620ARZ is typically supplied in tubes, while the AD620AR-REEL7 is supplied on a 7-inch tape-and-reel. The package footprint and pinout are identical, so PCB layout is unaffected by the choice between them.
Can the AD620AR-REEL7 be used as a drop-in replacement for the AD620ARZ?
Yes, from an electrical and footprint standpoint the AD620AR-REEL7 is a drop-in replacement for the AD620ARZ because both are the same AD620A-grade device in the same 8-lead SOIC package. The only practical consideration is the assembly process: the reel format is intended for automated pick-and-place, while the tube format suits manual or low-volume assembly.
What is the gain range and gain-setting method for these devices?
Both the AD620ARZ and AD620AR-REEL7 set gain with a single external resistor RG connected between pins 1 and 8, using the relationship G = 49.4 kΩ/RG + 1. Gains from 1 to 10,000 are achievable, with G = 1 obtained by leaving RG open. The gain accuracy and drift specifications are identical for both orderable part numbers.
Do the AD620ARZ and AD620AR-REEL7 have the same accuracy grade?
Yes. Both are A-grade AD620 devices, sharing the same specified input offset voltage, offset drift, gain error, and CMRR limits as defined in the AD620 datasheet. The suffix difference (ARZ vs AR-REEL7) reflects package/ordering format, not a performance grade change.
Which part number should be selected for high-volume automated production?
For high-volume automated SMT assembly, the AD620AR-REEL7 is the appropriate choice because it is supplied on 7-inch tape-and-reel compatible with pick-and-place equipment. The AD620ARZ in tubes is generally better suited to prototyping, low-volume, or manual assembly. Both are the same AD620A device, so electrical performance is unchanged.