Part A
ADM232AARWZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2354 PCS
- Package
- SOIC-16
- Series
- Interface - Condutores, Receptores, Transceivers
Replacement verdict
Compatible functional replacement candidate
The ADM232AARWZ and ADM232AARN-REEL7 are functionally equivalent RS-232 transceivers sharing the same core silicon, driver/receiver count, and electrical characteristics; the primary distinction is package format and delivery method, making them suitable substitutes where board footprint and assembly process permit.
Package Type
High match
Driver/Receiver Count
High match
Supply Voltage Range
High match
Mounting and Delivery Format
Validation required
Parts at a glance
Part B
ADM232AARN-REEL7
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 8272 PCS
- Package
- SOIC-16
- Series
- Interface - Condutores, Receptores, 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 | ADM232AARWZ | ADM232AARN-REEL7 | Why it matters |
|---|---|---|---|
| Package / Case | 16-SOIC (Wide, 7.50mm) | 16-SOIC (Narrow, 3.90mm) | Footprint and board layout differ; the wide-body and narrow-body SOIC packages are not drop-in compatible on the same PCB pad pattern. |
| Mounting Type | Surface Mount | Surface Mount | Both are surface-mount, so assembly method is the same, but package width still affects placement. |
| Packaging / Delivery Form | Tube | Tape & Reel | Delivery format affects automated pick-and-place assembly and inventory handling; reel is preferred for high-volume SMT lines. |
| Number of Drivers / Receivers | 2 / 2 | 2 / 2 | Both provide two RS-232 drivers and two receivers, so channel count is functionally equivalent. |
| Data Rate | 200 kbps | 200 kbps | Identical maximum data rate means both support the same serial communication speeds. |
| Supply Voltage | 5 V (single supply) | 5 V (single supply) | Same 5 V operating supply ensures electrical compatibility with the target system rail. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Identical industrial temperature range supports the same environmental operating conditions. |
| Interface Standard | RS-232 | RS-232 | Both comply with RS-232 signaling, ensuring protocol-level interchangeability. |
| Charge Pump / On-Chip Capacitors | Internal charge pump (external caps) | Internal charge pump (external caps) | Both use an internal charge pump requiring external capacitors, so the same external component network applies. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADM232AARWZ | ADM232AARN-REEL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Active | 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 ADM232AARWZ and ADM232AARN-REEL7?
Both devices are RS-232 line drivers/receivers from Analog Devices based on the ADM232A. The primary differences are the package type and shipping format: the ADM232AARWZ is supplied in a 16-lead SOIC (R-16) package in tube form, while the ADM232AARN-REEL7 is supplied in a 16-lead narrow-body SOIC (RN-16) package on a 7-inch tape and reel. Electrical functionality is equivalent between the two variants.
Are the ADM232AARWZ and ADM232AARN-REEL7 electrically interchangeable?
Yes. Both parts share the same ADM232A silicon die and the same electrical specifications, including dual RS-232 drivers and receivers, charge pump, and 5 V single-supply operation. The differences are limited to package body width and packaging format, so they are electrically interchangeable when the PCB footprint accommodates the respective package.
What package types do the ADM232AARWZ and ADM232AARN-REEL7 use?
The ADM232AARWZ uses a 16-lead SOIC_W (wide-body, 7.5 mm) package. The ADM232AARN-REEL7 uses a 16-lead SOIC_N (narrow-body, 3.9 mm) package. Designers must verify that the PCB land pattern matches the specific package width before substituting one for the other.
What is the difference in shipping format between the two parts?
The ADM232AARWZ is typically supplied in tubes for through-hole or low-volume SMT assembly. The ADM232AARN-REEL7 is supplied on a 7-inch tape and reel with 1,000 units per reel, making it suitable for automated pick-and-place production lines.
Do both parts operate from a single 5 V supply?
Yes. Both the ADM232AARWZ and ADM232AARN-REEL7 operate from a single +5 V supply and use an internal charge pump to generate the RS-232 voltage levels, eliminating the need for a separate ±12 V supply.
Are the ADM232AARWZ and ADM232AARN-REEL7 RoHS compliant?
Yes. Both the ADM232AARWZ and ADM232AARN-REEL7 are RoHS-compliant parts, as indicated by the "Z" suffix in the ordering code, which denotes lead-free (Pb-free) construction per Analog Devices ordering conventions.
Can the ADM232AARN-REEL7 be used as a drop-in replacement for the ADM232AARWZ?
Not as a direct drop-in replacement without layout verification. Although the electrical function is identical, the narrow-body SOIC_N package of the ADM232AARN-REEL7 has a different body width and lead span than the wide-body SOIC_W package of the ADM232AARWZ. The PCB land pattern must be confirmed to accept the narrow-body package before substitution.