Part A
ADM202JRN
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5083 PCS
- Package
- SOIC-16
- Series
- Interface - Drivers, Receivers, Transceivers
Replacement verdict
Compatible functional replacement candidate
The ADM202JRN and ADM202JRW are functionally equivalent RS-232 transceivers sharing the same core device, pinout, and electrical characteristics; the only distinction is the package and its associated thermal and mounting profile. The ADM202JRW is a viable functional replacement candidate for the ADM202JRN where board layout accommodates the wider SOIC-16W body, with final validation recommended for thermal and assembly fit.
Function and Protocol
High match
Pinout and Pin Count
High match
Package and Footprint
Validation required
Thermal and Power Dissipation
Validation required
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADM202JRN | ADM202JRW | Why it matters |
|---|---|---|---|
| Package / Case | 16-SOIC (Narrow, 3.90 mm) | 16-SOIC (Wide, 7.50 mm) | Footprint and board layout differ; the wide-body version cannot drop into a narrow-body pad pattern without layout changes. |
| Number of Transceivers | 2 (2 drivers, 2 receivers) | 2 (2 drivers, 2 receivers) | Determines the number of RS-232 channels available for the interface; identical here so channel count is substitutable. |
| Data Rate | 120 kbps | 120 kbps | Sets the maximum signaling speed supported; matching rates ensure equivalent throughput capability. |
| Supply Voltage | 5 V (single supply) | 5 V (single supply) | Must match the system rail; both operate from a single 5 V supply, so power design is interchangeable. |
| Driver Output Voltage Swing | ±5 V (typical, loaded) | ±5 V (typical, loaded) | RS-232 requires adequate swing for reliable signaling; identical swing means equivalent compliance with the standard. |
| Operating Temperature Range | 0 °C to +70 °C | 0 °C to +70 °C | Defines the environmental envelope for the part; matching ranges mean the same application conditions apply. |
| Number of Pins | 16 | 16 | Pin count affects socket and footprint compatibility; both are 16-pin devices, though body width differs. |
| Mounting Type | Surface Mount | Surface Mount | Assembly process compatibility; both are SMD parts, so the same reflow process can be used. |
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 | ADM202JRN | ADM202JRW |
|---|---|---|
| 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 |
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What is the primary difference between the ADM202JRN and ADM202JRW?
The primary difference is the package type: the ADM202JRN is supplied in a 16-lead narrow-body SOIC (RN-16) package, while the ADM202JRW is supplied in a 16-lead wide-body SOIC (RW-16) package. Both are dual-channel RS-232 line drivers/receivers from Analog Devices with the same electrical function.
Are the ADM202JRN and ADM202JRW electrically identical?
Yes. Both devices are members of the ADM202 family and share the same datasheet specifications, including dual RS-232 drivers and receivers, on-chip charge pump, 5 V single-supply operation, and data rates up to 120 kbps. The difference is package body width and PCB land pattern, not silicon functionality.
Can the ADM202JRN be substituted directly for the ADM202JRW on an existing PCB?
No, not without layout changes. The JRN uses a narrow-body SOIC (approximately 3.9 mm body width) and the JRW uses a wide-body SOIC (approximately 7.5 mm body width). The lead span and PCB land pattern differ, so a direct drop-in replacement on the same footprint is not possible.
What is the operating temperature range for both devices?
Both the ADM202JRN and ADM202JRW are specified for the commercial temperature range of 0°C to +70°C, consistent with the "J" grade designation in the Analog Devices ADM202 datasheet.
What supply voltage do the ADM202JRN and ADM202JRW require?
Both devices operate from a single +5 V supply. The on-chip charge pump generates the internal positive and negative RS-232 voltage levels, so no additional ±12 V supplies are required.
How many drivers and receivers do these devices provide?
Each device integrates two RS-232 drivers and two RS-232 receivers, making them suitable for dual-channel serial interface applications such as PC serial ports and modem interfaces.
Do the ADM202JRN and ADM202JRW require external charge-pump capacitors?
Yes. Both devices require external capacitors for the on-chip charge pump, as specified in the Analog Devices ADM202 datasheet. The recommended capacitor values and configuration should be taken directly from the manufacturer datasheet for the specific grade and package.
Which package should be selected for a new design, JRN or JRW?
Selection depends on PCB space and layout requirements. The narrow-body ADM202JRN conserves board area, while the wide-body ADM202JRW may be preferred where wider lead spacing, improved solder-joint inspection, or existing wide-SOIC footprints are required. Both meet the same electrical specifications.