Part A
AD620AR
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2454 Stückzahl
- Package
- SOIC-8
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Replacement verdict
Compatible functional replacement candidate
The AD620AR and AD620AR-REEL are functionally identical instrumentation amplifiers; the only distinction is packaging format, with the REEL variant supplied on tape and reel for automated assembly. Both share the same die, electrical specifications, and SOIC-8 footprint, making them fully interchangeable in design and production contexts.
Package Type
High match
Pin Configuration
High match
Electrical Specifications
High match
Operating Temperature Range
High match
Parts at a glance
Part B
AD620AR-REEL
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4769 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 | AD620AR | AD620AR-REEL | Why it matters |
|---|---|---|---|
| Amplifier Type | Instrumentation Amplifier | Instrumentation Amplifier | Confirms both parts are the same functional device type, ensuring direct substitutability in signal-conditioning circuits. |
| Number of Channels | 1 | 1 | Both provide a single instrumentation amplifier channel, so board layout and channel count remain identical. |
| Gain Range | 1 to 10000 (set by single external resistor) | 1 to 10000 (set by single external resistor) | Identical gain-setting behavior means the same external resistor network can be reused without redesign. |
| Input Offset Voltage (max) | 50 µV | 50 µV | Matching offset voltage ensures equivalent DC accuracy and error budget in precision measurement applications. |
| Input Bias Current (max) | 1.0 nA | 1.0 nA | Same low bias current preserves high-impedance sensor interfacing performance in both variants. |
| Gain Bandwidth Product | 1 MHz (G = 1) | 1 MHz (G = 1) | Identical bandwidth supports the same frequency response and stability characteristics in the target circuit. |
| Supply Voltage Range | ±2.3 V to ±18 V (dual supply) | ±2.3 V to ±18 V (dual supply) | Same supply range allows the parts to be used interchangeably across the same power rails. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Equivalent temperature ratings ensure the same environmental robustness in both packaging options. |
| Package / Mounting | 8-Lead SOIC (surface mount) | 8-Lead SOIC (surface mount), tape and reel | Same package footprint allows drop-in replacement; the reel variant only changes shipping/packaging format for automated assembly. |
| Packaging Format | Tube / bulk | Tape and reel | The only functional difference is delivery format; reel packaging suits high-volume automated pick-and-place lines, while tube suits low-volume or manual assembly. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD620AR | AD620AR-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 | 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 is the difference between the AD620AR and AD620AR-REEL?
The AD620AR and AD620AR-REEL are the same AD620 instrumentation amplifier die in the same 8-lead SOIC (R-8) package with identical electrical specifications. The difference is packaging format: AD620AR is supplied in standard tube/tray quantities, while AD620AR-REEL is supplied on tape-and-reel for automated pick-and-place assembly.
Are the AD620AR and AD620AR-REEL electrically and functionally identical?
Yes. Both order codes refer to the same AD620AR grade device: a low-cost, low-power instrumentation amplifier with a gain range of 1 to 10,000 set by a single external resistor, 0.15% maximum gain error at G=10, 120 kHz bandwidth at G=100, and 1.3 mA maximum supply current. The -REEL suffix denotes shipping format only, not a different silicon grade or specification.
Can the AD620AR and AD620AR-REEL be used interchangeably in a design?
Yes, from an electrical and footprint standpoint they are interchangeable, since both are the AD620AR in the 8-lead SOIC package. The only practical consideration is assembly: AD620AR-REEL is intended for reel-fed automated placement, while AD620AR tube/tray parts suit manual or low-volume assembly. Verify the current ordering quantity and packaging option against the manufacturer's ordering guide before release.
What package does the AD620AR use, and is it the same for the AD620AR-REEL?
Both parts use the 8-lead SOIC package (R-8 suffix in the Analog Devices ordering code). The package body, pinout, and PCB land pattern are identical, so no layout change is required when switching between the two order codes.
Why would a designer choose AD620AR-REEL over AD620AR?
AD620AR-REEL is chosen when the board is assembled on automated SMT lines that require tape-and-reel input. It provides the same AD620AR performance while matching high-volume pick-and-place feeding requirements. AD620AR in tubes/trays is typically selected for prototyping, manual assembly, or low-volume builds.
Do the AD620AR and AD620AR-REEL share the same gain-setting resistor configuration?
Yes. Both use the standard AD620 gain equation, where a single external resistor Rg between pins 1 and 8 sets the gain: G = 49.4 kΩ / Rg + 1. Because both order codes are the same AD620AR device, the gain-setting resistor value and connection are identical.
Are the AD620AR and AD620AR-REEL rated for the same supply voltage and temperature range?
Yes. Both are the AD620AR grade, specified for operation on ±2.3 V to ±18 V dual supplies (or 4.6 V to 36 V single supply) over the standard industrial temperature range of −40°C to +85°C. The packaging format does not affect these ratings.