Part A
AD620BRZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 3666 Stückzahl
- Package
- SOIC-8
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Replacement verdict
Compatible functional replacement candidate
The AD620BRZ-R7 and AD620BRZ are functionally equivalent instrumentation amplifiers sharing the same core die, package, and grade; the -R7 suffix denotes tape-and-reel packaging rather than any electrical or mechanical difference, so either part can serve as a direct functional substitute with only packaging format and ordering quantity to consider.
Amplifier Function and Gain Range
High match
Package Type and Pinout
High match
Electrical Specifications
High match
Packaging and Ordering Format
Validation required
Parts at a glance
Part B
AD620BRZ-R7
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2808 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 | AD620BRZ-R7 | AD620BRZ | Why it matters |
|---|---|---|---|
| Amplifier Type | Instrumentation Amplifier | Instrumentation Amplifier | Both are the same core amplifier type, so they are functionally interchangeable in the same circuit topology. |
| Number of Channels | 1 | 1 | Channel count must match for direct substitution in single-channel signal conditioning designs. |
| Gain Bandwidth Product | 1 MHz | 1 MHz | Determines the achievable closed-loop bandwidth at a given gain; identical values ensure the same frequency response. |
| Input Offset Voltage (max) | 50 µV | 50 µV | Offset voltage directly affects DC accuracy; matching values preserve measurement precision. |
| Input Bias Current (max) | 1 nA | 1 nA | Low bias current is critical for high-impedance sensor interfaces; identical values ensure equivalent loading effects. |
| Supply Voltage Range | ±2.3 V to ±18 V | ±2.3 V to ±18 V | Defines the operating supply window; matching ranges allow use in the same power architecture. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Ensures both parts meet the same environmental requirements for industrial and commercial applications. |
| Package / Mounting Type | 8-SOIC / Surface Mount | 8-SOIC / Surface Mount | Identical package and mounting allow drop-in PCB replacement without layout changes. |
| Packaging / Ordering Format | Tape & Reel (R7) | Tube / Tray | Packaging format affects assembly line handling and inventory; the reel version suits automated pick-and-place, while the tube version suits prototyping or low-volume runs. |
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 | AD620BRZ | AD620BRZ-R7 |
|---|---|---|
| Part Status | Active | Active |
| 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-R7 and AD620BRZ?
Both are the same AD620 instrumentation amplifier 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). The only difference is packaging format: AD620BRZ-R7 is supplied in tape-and-reel (7-inch reel) for automated assembly, while AD620BRZ is supplied in standard tube/rail packaging. Electrical specifications are identical.
Are AD620BRZ-R7 and AD620BRZ electrically interchangeable?
Yes. Both parts share the same die, grade, and 8-lead SOIC (R-8) package, so gain equation (G = 49.4 kΩ/RG + 1), supply range (±2.3 V to ±18 V), and all datasheet parameters are identical. The choice between them is purely a matter of assembly packaging preference.
Which part should be selected for high-volume automated PCB assembly?
AD620BRZ-R7 is the appropriate choice for automated pick-and-place lines because it is delivered on a 7-inch tape-and-reel per EIA standards, which feeds directly into SMT placement equipment. AD620BRZ in tubes is typically used for low-volume, prototyping, or manual assembly.
Do both parts use the same PCB land pattern and footprint?
Yes. Both are offered in the identical 8-lead SOIC package (R-8 suffix), so the PCB land pattern, pinout, and mechanical dimensions are the same. A board designed for one will accept the other without layout changes.
What is the gain-setting resistor requirement for these devices?
Both parts set gain with a single external resistor RG connected between pins 1 and 8, using G = 49.4 kΩ/RG + 1. For G = 1, RG is left open. This applies equally to AD620BRZ-R7 and AD620BRZ since they are the same silicon.
Are AD620BRZ-R7 and AD620BRZ RoHS compliant?
Yes. The "Z" suffix in both part numbers denotes the RoHS-compliant, lead-free (Pb-free) SOIC package version from Analog Devices. Both variants share the same package construction and compliance status.
Can AD620BRZ-R7 and AD620BRZ be mixed on the same production line?
Yes, from an electrical and footprint standpoint they are identical. However, the feeder setup differs: tape-and-reel (R7) versus tube. Mixing is acceptable as long as the assembly equipment is configured for the respective packaging format.