Part A
AD620BRZ
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 3666 PCS
- Package
- SOIC-8
- Series
- Amplificateurs linéaires - instruments, amplificateurs opérationnels, amplificateurs tampons
Replacement verdict
Compatible functional replacement candidate
The AD620BRZ and AD620BR-REEL are functionally equivalent implementations of the same instrumentation amplifier, differing only in packaging format and delivery method. Both share identical electrical specifications, gain range, and operating characteristics, making them interchangeable for design purposes. The primary distinction lies in the reel packaging of the AD620BR-REEL, which is optimized for automated high-volume assembly, while the AD620BRZ is supplied in tube format for lower-volume or prototyping requirements.
Amplifier Type and Gain Range
High match
Package Type and Pinout
High match
Operating Temperature Range
High match
Packaging and Delivery Format
Validation required
Parts at a glance
Part B
AD620BR-REEL
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 8897 PCS
- Package
- SOIC-8
- Series
- Amplificateurs linéaires - instruments, amplificateurs opérationnels, amplificateurs tampons
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD620BRZ | AD620BR-REEL | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Same manufacturer ensures identical silicon design and process, critical for 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. |
| Gain Bandwidth Product | 1 MHz | 1 MHz | Determines the frequency range over which the amplifier provides usable gain; must match for equivalent AC performance. |
| Input Offset Voltage (max) | 50 µV | 50 µV | Low offset is essential for precision measurement; identical values confirm equivalent DC accuracy. |
| Input Bias Current (max) | 1 nA | 1 nA | Bias current affects error in high-impedance sensor interfaces; matching values ensure equivalent performance. |
| Supply Voltage Range | ±2.3 V to ±18 V | ±2.3 V to ±18 V | Compatible supply range is required for the part to operate in the same system rails. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Identical temperature ratings confirm the parts can be used in the same environmental conditions. |
| Package / Mounting | 8-SOIC (tube) | 8-SOIC (tape and reel) | Same package type but different packaging format; affects assembly handling and reflow process, not electrical function. |
| Packaging / Ordering Format | Tube | Tape & Reel | Packaging format differs, which matters for automated pick-and-place production versus manual or low-volume assembly. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD620BRZ | AD620BR-REEL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| 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 | 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 AD620BRZ and AD620BR-REEL?
Both are the same AD620 instrumentation amplifier die in an 8-lead SOIC package with the B grade (25 µV max input offset voltage, 0.3 µV/°C max offset drift, 100 dB min CMRR at G=10). The difference is packaging format: AD620BRZ is supplied in tube/rail form, while AD620BR-REEL is supplied on tape-and-reel for automated assembly. The "Z" suffix in AD620BRZ denotes RoHS-compliant lead finish; the reel variant is specified by the ordering code AD620BR-REEL.
Are AD620BRZ and AD620BR-REEL electrically and functionally interchangeable?
Yes. Both parts share the same datasheet specifications for the AD620 B grade: gain range 1 to 10,000 set by a single external resistor, 25 µV max input offset voltage, 0.3 µV/°C max offset drift, 100 dB min CMRR (G=10), 120 kHz bandwidth at G=10, and 1.3 mA max supply current over ±2.3 V to ±18 V supplies. They differ only in shipping format, not in electrical performance.
Which part should be selected for high-volume automated PCB assembly?
AD620BR-REEL is the appropriate choice for automated pick-and-place lines because it is supplied on tape-and-reel per the AD620BR-REEL ordering code. AD620BRZ in tube/rail format is typically used for low-volume, prototyping, or manual assembly. Both use the same 8-lead SOIC (R-8) package and footprint.
Do AD620BRZ and AD620BR-REEL have the same package and pinout?
Yes. Both are offered in the 8-lead SOIC (R-8) package with the standard AD620 pinout: pin 1 and pin 8 for the gain-setting resistor, pins 2 and 3 for inverting and non-inverting inputs, pin 4 for negative supply, pin 5 for output, pin 6 for reference, and pin 7 for positive supply. PCB land patterns are identical.
What is the gain-setting method for both AD620BRZ and AD620BR-REEL?
Gain is set by a single external resistor R_G between pins 1 and 8 using the datasheet relationship G = 49.4 kΩ / R_G + 1. This applies identically to AD620BRZ and AD620BR-REEL since they are the same device. For G = 1, R_G is left open; for G = 1000, R_G is approximately 49.4 Ω.
Are both parts RoHS compliant?
AD620BRZ carries the "Z" suffix, which in Analog Devices ordering nomenclature denotes a RoHS-compliant lead finish. The AD620BR-REEL ordering code should be verified against the current Analog Devices product page or datasheet ordering guide for its specific RoHS status, as reel packaging codes can be updated independently of the die. Designers should confirm compliance from the manufacturer's current ordering information before finalizing.
What are the key supply and temperature specifications shared by both variants?
Both AD620BRZ and AD620BR-REEL operate from ±2.3 V to ±18 V dual supplies, draw 1.3 mA max supply current, and are specified over the industrial temperature range of −40°C to +85°C. Input bias current is 2.0 nA max and input voltage noise is 9 nV/√Hz at 1 kHz, per the AD620 datasheet B-grade specifications.
Can AD620BRZ and AD620BR-REEL be mixed on the same production line?
Yes, from an electrical and footprint standpoint they are identical and can be used interchangeably on the same PCB design. The only practical consideration is feeder setup: AD620BR-REEL is presented on tape-and-reel for automated placement, whereas AD620BRZ in tube/rail format requires different handling equipment. Inventory and traceability records should distinguish the two ordering codes.