Part A
AD620BR
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 4160 個数
- Package
- SOIC-8
- Series
- リニアアンプ - 計装用、オペアンプ、バッファアンプ
Replacement verdict
Compatible functional replacement candidate
The AD620BR and AD620BR-REEL7 are the same precision instrumentation amplifier die in the same 8-lead SOIC package, differing only in packaging format (tube vs. tape-and-reel). Electrical specifications, pinout, and footprint are identical, so the two part numbers are functionally interchangeable; selection should be driven solely by assembly and handling requirements.
Amplifier Function and Topology
High match
Package and Pinout
High match
Key Electrical Specifications
High match
Packaging Format
High match
Parts at a glance
Part B
AD620BR-REEL7
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 3446 個数
- Package
- SOIC-8
- Series
- リニアアンプ - 計装用、オペアンプ、バッファアンプ
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-REEL7 | Why it matters |
|---|---|---|---|
| Amplifier Type | Instrumentation Amplifier | Instrumentation Amplifier | Confirms both parts are the same functional amplifier type, ensuring direct substitutability in the circuit. |
| Number of Channels | 1 | 1 | Channel count must match for the replacement to serve the same signal path. |
| Gain Bandwidth Product | 1 MHz | 1 MHz | Determines the frequency range over which the amplifier provides usable gain; matching values preserve AC performance. |
| Input Offset Voltage (max) | 50 µV | 50 µV | Low offset is critical for precision measurement; identical values ensure the same DC accuracy. |
| Input Bias Current (max) | 1 nA | 1 nA | Bias current affects error in high-impedance sensor interfaces; matching values preserve accuracy. |
| Supply Voltage Range | ±2.3 V to ±18 V | ±2.3 V to ±18 V | The operating supply window must match to ensure compatibility with the existing power rail design. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Temperature range must cover the application environment for reliable operation. |
| Package / Case | 8-SOIC | 8-SOIC | Footprint and package must match for physical board compatibility. |
| Packaging | Tube | Tape & Reel (7-inch reel) | Packaging differs for automated assembly versus manual handling; the electrical part is identical, but reel packaging suits high-volume pick-and-place production. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD620BR | AD620BR-REEL7 |
|---|---|---|
| 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-REEL7?
Both parts are the same AD620 instrumentation amplifier in the B grade (SOIC-8 package). The difference is packaging format: AD620BR is supplied in tube/tray quantities, while AD620BR-REEL7 is supplied on a 7-inch tape-and-reel for automated assembly. Electrical specifications are identical.
Are AD620BR and AD620BR-REEL7 electrically and functionally interchangeable?
Yes. Both are the same B-grade AD620 die in the same SOIC-8 package, so gain range (1 to 10,000), gain equation (G = 49.4 kΩ/RG + 1), supply range (±2.3 V to ±18 V), and offset/gain error grades are identical. Only the delivery format differs.
What are the key specifications of the AD620BR?
The AD620BR is a low-cost, low-power instrumentation amplifier with a gain set by a single external resistor, gain range of 1 to 10,000, maximum gain error of 0.15% at G = 10, maximum input offset voltage of 50 µV, input offset drift of 0.6 µV/°C, input bias current of 1.0 nA max, CMRR of 100 dB min at G = 10, and supply range of ±2.3 V to ±18 V. It is specified for the −40 °C to +85 °C temperature range.
What does the "REEL7" suffix indicate on AD620BR-REEL7?
The REEL7 suffix denotes a 7-inch tape-and-reel packaging format used for automated pick-and-place assembly. It does not change the device grade, electrical performance, or temperature specification relative to AD620BR.
Which part should be selected for high-volume automated PCB assembly?
AD620BR-REEL7 is the appropriate choice for automated SMT production lines because the 7-inch tape-and-reel format is compatible with standard pick-and-place feeders. AD620BR in tube/tray format is better suited to low-volume or manual assembly.
Do AD620BR and AD620BR-REEL7 share the same package and pinout?
Yes. Both are offered in the SOIC-8 package with the same pinout: pin 1 and pin 8 are the gain-setting resistor terminals (RG), pins 2 and 3 are the inverting and non-inverting inputs, pin 4 is −VS, pin 5 is REF, pin 6 is OUTPUT, and pin 7 is +VS. PCB land patterns are therefore identical.
Can AD620BR and AD620BR-REEL7 be used interchangeably in an existing design?
Yes, from an electrical and footprint standpoint they are interchangeable because they are the same B-grade device in the same SOIC-8 package. The only practical consideration is the assembly process: reeled parts require tape-and-reel handling equipment, while tube/tray parts suit manual or low-volume placement.