Part A
ADM232AARN
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4204 PCS
- Package
- SOIC-16
- Series
- Interface - Drivers, Receivers, Transceivers
Replacement verdict
Compatible functional replacement candidate
ADM232AARN and ADM232AARN-REEL7 are the same ADM232AARN device offered in different packaging formats, making them functionally interchangeable for design and replacement purposes. The only meaningful distinction is the shipping form factor, so the REEL7 variant can be used wherever the tube version is specified without electrical or footprint changes.
Base Part Number
High match
Package Type
High match
Electrical Specifications
High match
Packaging Format
Validation required
Parts at a glance
Part B
ADM232AARN-REEL7
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 8272 PCS
- Package
- SOIC-16
- Series
- Interface - Drivers, Receivers, Transceivers
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADM232AARN | ADM232AARN-REEL7 | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. | Same manufacturer ensures identical silicon design and process, critical for functional substitutability. |
| Function / Interface Type | Dual RS-232 line driver/receiver | Dual RS-232 line driver/receiver | Both provide the same RS-232 transceiver function, so they are interchangeable at the circuit level. |
| Number of Drivers / Receivers | 2 drivers / 2 receivers | 2 drivers / 2 receivers | Channel count must match to preserve the number of serial ports supported by the design. |
| Package / Case | 16-SOIC (0.154", 3.90mm width) | 16-SOIC (0.154", 3.90mm width) | Identical package footprint allows drop-in PCB replacement without layout changes. |
| Mounting Type | Surface Mount | Surface Mount | Same mounting method ensures compatibility with the existing assembly process. |
| Supply Voltage | 5 V (single supply) | 5 V (single supply) | Matching supply voltage is essential for electrical compatibility in the target system. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Same temperature range guarantees equivalent environmental performance and reliability. |
| Packaging / Delivery Form | Tube | Tape & Reel (7" reel) | Packaging differs for automated vs. manual assembly; the reel variant suits high-volume pick-and-place production while the tube suits prototyping or low-volume runs. |
| Ordering Part Number Suffix | ADM232AARN (base) | ADM232AARN-REEL7 | The suffix distinguishes packaging only; the electrical device is identical, so either can be used functionally. |
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 | ADM232AARN | ADM232AARN-REEL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Obsolete | Obsolete |
| Type | Transceiver | Transceiver |
| Protocol | RS232 | RS232 |
| Number of Drivers/Receivers | 2/2 | 2/2 |
| Duplex | Full | Full |
| Receiver Hysteresis | 400 mV | 400 mV |
| Data Rate | 200kbps | 200kbps |
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What is the difference between ADM232AARN and ADM232AARN-REEL7?
The ADM232AARN and ADM232AARN-REEL7 are the same Analog Devices RS-232 transceiver device in a 16-lead narrow SOIC (R-16) package. The suffix "-REEL7" designates the packaging format: tape-and-reel with 7-inch reel, while the base ADM232AARN part number refers to the same die in tube or standard bulk packaging. Electrical and functional specifications are identical.
Are ADM232AARN and ADM232AARN-REEL7 electrically and functionally identical?
Yes. Both part numbers refer to the same ADM232A silicon in the same 16-lead SOIC package. The only documented difference is the shipping/packaging format (tape-and-reel vs. tube/bulk). Datasheet parameters such as data rate, supply voltage range, and driver/receiver count apply equally to both.
What are the key technical specifications of the ADM232A?
The ADM232A is a dual RS-232 driver/receiver that operates from a single +5 V supply. It features two drivers and two receivers, an on-chip charge pump, and is specified for data rates up to 200 kbps. It is available in a 16-lead narrow SOIC package and is intended for applications requiring RS-232 communication from a single 5 V rail.
Can ADM232AARN and ADM232AARN-REEL7 be used interchangeably in a design?
Yes, from an electrical and footprint standpoint they are interchangeable because they are the same device in the same package. The choice between them is driven by assembly and procurement considerations—tape-and-reel (ADM232AARN-REEL7) is typically used for automated pick-and-place production lines, while tube packaging (ADM232AARN) is often used for prototyping or low-volume manual assembly.
What supply voltage does the ADM232A require?
The ADM232A operates from a single +5 V supply. Its on-chip charge pump generates the positive and negative RS-232 voltage levels required for compliant RS-232 output, eliminating the need for a separate negative supply rail.
What is the maximum data rate supported by the ADM232A?
The ADM232A is specified for data rates up to 200 kbps, which is sufficient for standard RS-232 serial communication applications.
In what package is the ADM232AARN supplied?
The ADM232AARN is supplied in a 16-lead narrow SOIC package (Analog Devices package code R-16). Both the ADM232AARN and ADM232AARN-REEL7 use this same package, so PCB land patterns are identical.
Why would a designer choose the -REEL7 variant over the base part number?
The -REEL7 variant is supplied on a 7-inch tape-and-reel, which is compatible with automated surface-mount assembly equipment. This packaging reduces handling and feeder setup time in high-volume production. The base ADM232AARN in tube packaging is more convenient for manual assembly, prototyping, or low-volume runs. The electrical device is the same in both cases.