Part A
AD603AR
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6107 PCS
- Package
- SOIC-8
- Series
- Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
Replacement verdict
Compatible functional replacement candidate
The AD603AR and AD603AR-REEL are functionally identical, as the -REEL suffix only denotes tape-and-reel packaging for automated assembly. Both parts share the same die, electrical specifications, and package type, making them fully interchangeable in design and production. The only practical distinction is the delivery format, which affects handling and pick-and-place processes rather than device performance.
Package Type
High match
Electrical Specifications
High match
Operating Temperature Range
High match
Packaging Format
Validation required
Parts at a glance
Part B
AD603AR-REEL
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4964 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 | AD603AR | AD603AR-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 | Variable Gain Amplifier (VGA) | Variable Gain Amplifier (VGA) | Confirms both parts serve the same signal-conditioning function in a circuit. |
| Package / Case | 8-SOIC | 8-SOIC | Identical footprint allows drop-in replacement on the same PCB layout. |
| Number of Channels | 1 | 1 | Channel count must match for the part to fit the same circuit topology. |
| Gain Range | -11 dB to +31 dB | -11 dB to +31 dB | Defines the adjustable amplification window available to the designer. |
| Bandwidth | 90 MHz | 90 MHz | Sets the maximum signal frequency the amplifier can handle without significant roll-off. |
| Supply Voltage Range | ±4.75 V to ±6.3 V | ±4.75 V to ±6.3 V | Must match the system power rails for the device to operate correctly. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Ensures the part meets the environmental requirements of the target application. |
| Packaging / Delivery Form | Tube | Tape & Reel | Different packaging affects assembly line handling and pick-and-place automation, though the die is identical. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD603AR | AD603AR-REEL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Series | X-AMP® | X-AMP® |
| Part Status | Obsolete | Obsolete |
| Amplifier Type | Variable Gain | Variable Gain |
| Number of Circuits | 1 | 1 |
| Slew Rate | 275V/µs | 275V/µs |
| -3 dB Bandwidth | 90 MHz | 90 MHz |
| Current - Input Bias | 200 nA | 200 nA |
| Supply Current | 12.5mA | 12.5mA |
| Current - Output / Channel | 50 mA | 50 mA |
| Voltage - Supply Span(Min) | 9.5 V | 9.5 V |
| Voltage - Supply Span(Max) | 12.6 V | 12.6 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 AD603AR and AD603AR-REEL?
The AD603AR and AD603AR-REEL are the same AD603 variable gain amplifier die and package; the difference is packaging format. AD603AR is supplied in tube/tray form, while AD603AR-REEL is supplied on tape-and-reel for automated assembly. Electrical specifications are identical per the Analog Devices datasheet.
Are AD603AR and AD603AR-REEL electrically identical?
Yes. Both are the AD603, a low-noise, 90 MHz bandwidth variable gain amplifier with a linear-in-dB gain range of -11 dB to +31 dB (or 0 dB to +40 dB depending on pin strapping). The -REEL suffix denotes tape-and-reel packaging only and does not change device parameters.
What package do AD603AR and AD603AR-REEL use?
Both are offered in an 8-lead SOIC (Small Outline Integrated Circuit) package, designated "R" in the ordering code. The package outline, pinout, and PCB land pattern are the same for both ordering variants.
Can AD603AR and AD603AR-REEL be used interchangeably in a design?
Yes, from an electrical and footprint standpoint they are interchangeable. The choice depends on assembly method: AD603AR-REEL is intended for pick-and-place reflow assembly, while AD603AR tube packaging is typically used for prototyping or low-volume hand assembly.
What is the gain range and bandwidth of the AD603?
Per the Analog Devices datasheet, the AD603 provides a gain range of -11 dB to +31 dB with a -3 dB bandwidth of 90 MHz (gain of +10 dB to +30 dB configuration), and a gain accuracy of ±0.5 dB. Bandwidth varies with gain setting as specified in the datasheet.
What supply voltage does the AD603 require?
The AD603 operates from a dual supply of ±4.5 V to ±6.3 V, or a single supply of +9 V to +12.6 V with appropriate biasing, per the Analog Devices datasheet. Both AD603AR and AD603AR-REEL share these ratings.
Does the -REEL suffix affect moisture sensitivity or handling requirements?
No. Moisture sensitivity level (MSL) and handling requirements are determined by the package and are the same for AD603AR and AD603AR-REEL. Both are 8-lead SOIC devices; refer to the Analog Devices datasheet and packaging information for the applicable MSL rating.
Which variant should be specified for production versus prototyping?
For volume production using automated SMT assembly, AD603AR-REEL (tape-and-reel) is the appropriate choice. For bench prototyping, evaluation, or low-volume builds, AD603AR in tube packaging is typically more convenient. Both variants are the same AD603 device.