Part A
AD620BR
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4160 PCS
- Package
- SOIC-8
- Series
- Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The AD620BR and AD620BR-REEL are functionally identical instrumentation amplifiers; the only distinction is packaging format, with the -REEL variant supplied on tape and reel for automated assembly. Either part number can serve as a direct replacement for the other in the same circuit design, provided the board assembly process accommodates the respective packaging.
Amplifier Function
High match
Package Type
High match
Electrical Specifications
High match
Packaging Format
High match
Parts at a glance
Part B
AD620BR-REEL
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 8897 PCS
- Package
- SOIC-8
- Series
- Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD620BR | AD620BR-REEL | Why it matters |
|---|---|---|---|
| Amplifier Type | Instrumentation Amplifier | Instrumentation Amplifier | Confirms both parts are the same functional amplifier type, ensuring circuit topology compatibility. |
| Number of Channels | 1 | 1 | Single-channel configuration must match for direct substitution in a given signal path. |
| Gain Bandwidth Product | 1 MHz | 1 MHz | Determines the achievable closed-loop bandwidth and dynamic response of the amplifier. |
| Input Offset Voltage (max) | 50 µV | 50 µV | Low offset is critical for precision DC measurements and sensor signal conditioning. |
| Input Bias Current (max) | 1 nA | 1 nA | Low bias current minimizes errors in high-impedance source applications. |
| Supply Voltage Range | ±2.3 V to ±18 V | ±2.3 V to ±18 V | Defines the operating supply window and compatibility with the target system rails. |
| CMRR (min) | 100 dB | 100 dB | High common-mode rejection is essential for extracting small differential signals in noisy environments. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Ensures the part meets the thermal requirements of the intended application environment. |
| Packaging | Tube | Tape & Reel | Packaging form affects assembly line handling and is the primary difference between these two orderable part numbers. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD620BR | AD620BR-REEL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Obsolete | 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 | 15 µV | 15 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 is the difference between AD620BR and AD620BR-REEL?
The AD620BR and AD620BR-REEL are the same AD620 instrumentation amplifier die in the same 8-lead SOIC package with the same B-grade specifications. The only difference is the packaging format: AD620BR is supplied in tube/tray quantities, while AD620BR-REEL is supplied on tape-and-reel for automated assembly.
Are AD620BR and AD620BR-REEL electrically and functionally identical?
Yes. Both parts share the same datasheet specifications for the AD620 B grade, including gain range of 1 to 10,000 set by a single external resistor, low offset voltage, low offset drift, low input bias current, and high CMRR. The -REEL suffix denotes shipping format only and does not change device performance.
Can AD620BR and AD620BR-REEL be used interchangeably in a design?
Yes, from an electrical and footprint standpoint they are interchangeable because both are the same B-grade AD620 in an 8-lead SOIC package. The choice between them is driven by manufacturing handling: tube for low-volume or manual assembly, and tape-and-reel for pick-and-place production lines.
What package do AD620BR and AD620BR-REEL use?
Both variants are offered in the 8-lead SOIC (Small Outline Integrated Circuit) package, commonly designated R-8 or SOIC-8 in Analog Devices documentation. Designers should confirm the exact package code on the ordering guide for the specific orderable part number.
Why would a designer choose AD620BR-REEL over AD620BR?
AD620BR-REEL is chosen when the board is assembled on automated surface-mount equipment that requires tape-and-reel input. Tape-and-reel packaging supports pick-and-place feeders, improves throughput, and reduces handling damage compared with tube-supplied parts.
Do AD620BR and AD620BR-REEL differ in grade or accuracy?
No. Both carry the B grade designation of the AD620, which is the higher-accuracy grade compared with the A grade. Grade-related parameters such as offset voltage, offset drift, and gain error are defined by the B grade and are the same for both orderable variants.
What is the AD620 typically used for?
The AD620 is a monolithic instrumentation amplifier used for precision signal conditioning, including transducer and bridge amplification, medical and industrial instrumentation, and low-level differential signal acquisition. Its gain is set from 1 to 10,000 with a single external resistor.
Should the orderable part number be verified before purchase?
Yes. Buyers should confirm the full orderable part number, package code, temperature range, and shipping format against the manufacturer's ordering guide or an authorized distributor listing, since suffix codes define packaging and grade and must match the design and assembly requirements.