Part A
ADM232AARN
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 4204 PCS
- Package
- SOIC-16
- Series
- Interfaces - pilotes, récepteurs, émetteurs - récepteurs
Replacement verdict
Compatible functional replacement candidate
The ADM232AARN and ADM232AARW-REEL are functionally equivalent RS-232 transceivers from the same ADM232A family, sharing identical driver/receiver architecture, supply voltage range, and data rate. The primary distinction is the package and packaging format, making the ADM232AARW-REEL a viable functional substitute for the ADM232AARN where board layout accommodates the SOIC-16W footprint and reel packaging is acceptable.
Function and Protocol
High match
Supply Voltage Range
High match
Package Type
Validation required
Packaging Format
Validation required
Parts at a glance
Part B
ADM232AARW-REEL
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 9934 PCS
- Package
- SOIC-16
- Series
- Interfaces - pilotes, récepteurs, émetteurs - récepteurs
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 | ADM232AARW-REEL | Why it matters |
|---|---|---|---|
| Package / Mounting Type | 16-Lead SOIC (Narrow), Surface Mount | 16-Lead SOIC (Wide), Surface Mount, Tape & Reel | Different package widths (narrow vs. wide SOIC) affect PCB footprint and layout; the reel packaging also impacts assembly handling. |
| Packaging / Ordering Format | Tube / Bulk | Tape & Reel | Tape & reel is required for automated pick-and-place production lines, while tubes suit low-volume or manual assembly. |
| Number of Drivers / Receivers | 2 / 2 | 2 / 2 | Defines the RS-232 channel count; identical here, so both provide the same interface capacity. |
| Data Rate | 200 kbps | 200 kbps | Maximum RS-232 signaling rate; matching values confirm equivalent throughput capability. |
| Supply Voltage | 5 V (single supply) | 5 V (single supply) | Operating supply must match the system rail; both require a single 5 V supply. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Determines environmental suitability; identical industrial temperature range means equivalent thermal tolerance. |
| Internal Charge Pump | Yes (on-chip) | Yes (on-chip) | On-chip charge pump generates RS-232 voltage levels from a single 5 V supply, eliminating external supplies; both include it. |
| Number of External Capacitors | 4 (0.1 µF) | 4 (0.1 µF) | External capacitor count affects board space and BOM; identical requirements mean the same external component network. |
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 | ADM232AARW-REEL |
|---|---|---|
| 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 are the key differences between the ADM232AARN and the ADM232AARW-REEL?
The primary difference is the package type and packaging format. The ADM232AARN is supplied in a 16-lead narrow-body SOIC (R-16) package in tube form, while the ADM232AARW-REEL is supplied in a 16-lead wide-body SOIC (RW-16) package on a tape-and-reel. Both are dual-channel RS-232 line drivers/receivers from Analog Devices with the same electrical function.
Are the ADM232AARN and ADM232AARW-REEL electrically identical?
Yes. Both devices are members of the ADM232A family and share the same electrical specifications, including dual RS-232 drivers and receivers, on-chip charge pump, and single +5 V supply operation. The differences are limited to package body width and shipping format, not the internal silicon or functional parameters.
Can the ADM232AARN and ADM232AARW-REEL be used interchangeably on the same PCB?
No, not without layout changes. The ADM232AARN uses a narrow-body SOIC (R-16) footprint, while the ADM232AARW-REEL uses a wide-body SOIC (RW-16) footprint. The lead pitch is the same (1.27 mm), but the package body width and lead span differ, so the PCB land pattern must match the specific package.
What is the difference in shipping format between the two parts?
The ADM232AARN is typically supplied in tubes for through-hole or hand-placement and low-volume production. The ADM232AARW-REEL is supplied on a tape-and-reel, which is compatible with automated pick-and-place assembly lines and is intended for high-volume manufacturing.
Do both parts operate from a single +5 V supply?
Yes. Both the ADM232AARN and ADM232AARW-REEL operate from a single +5 V supply and use an on-chip charge pump to generate the RS-232 voltage levels, eliminating the need for a separate ±12 V supply.
Which part should be selected for automated high-volume assembly?
The ADM232AARW-REEL is the appropriate choice for automated high-volume assembly because it is provided on tape-and-reel, which is required by most pick-and-place machines. The ADM232AARN in tubes is better suited to low-volume or hand-assembly processes.
Are both parts RoHS compliant?
RoHS compliance depends on the specific ordering suffix and revision. The base part numbers ADM232AARN and ADM232AARW-REEL should be verified against the manufacturer's datasheet and the distributor's compliance documentation for the exact orderable part number before use in a RoHS-restricted design.