Part A
ADM202EANZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4697 PCS
- Package
- DIP-16
- Series
- Interface - Drivers, Receivers, Transceivers
Replacement verdict
Compatible functional replacement candidate
The ADM202JN is a viable functional replacement candidate for the ADM202EANZ, as both devices share the same core RS-232 transceiver architecture, channel configuration, and package footprint. Designers should validate ESD immunity and operating temperature margin against the target application before final qualification.
Function and Channel Configuration
High match
Package Type and Pinout
High match
ESD Protection Level
Validation required
Operating Temperature Range
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 | ADM202EANZ | ADM202JN | Why it matters |
|---|---|---|---|
| ESD Protection (IEC 1000-4-2) | ±15 kV (air/contact) | Not specified / standard | The "E" variant includes enhanced ESD protection, making it more robust in harsh environments and a key differentiator for field-exposed interfaces. |
| Operating Temperature Range | -40°C to +85°C | 0°C to +70°C | Industrial-grade temperature range affects suitability for automotive, industrial, and outdoor applications versus commercial-only use. |
| Package / Mounting | 16-Lead PDIP (N) | 16-Lead PDIP (N) | Package and pinout determine physical board compatibility; both share the same PDIP footprint, enabling drop-in substitution. |
| Data Rate | 120 kbps | 120 kbps | Maximum data rate must meet the application's signaling speed; identical rates confirm functional interchangeability for RS-232 links. |
| Number of Drivers / Receivers | 2 / 2 | 2 / 2 | Driver/receiver count defines how many RS-232 channels are available; matching counts ensures the same interface capability. |
| Supply Voltage | 5 V | 5 V | Supply voltage must match the system rail; both operate from a single 5 V supply, supporting direct replacement. |
| On-Chip Charge Pump | Yes (internal) | Yes (internal) | An internal charge pump generates RS-232 voltage levels from a single 5 V supply, eliminating the need for external supplies. |
| Manufacturer | Analog Devices | Analog Devices | Same manufacturer and product family ensures consistent design, documentation, and qualification lineage. |
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 | ADM202EANZ | ADM202JN |
|---|---|---|
| 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 | 650 mV | 400 mV |
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C | 0°C ~ 70°C |
| Mounting Type | Through Hole | Through Hole |
| Data Rate | 230kbps | - |
Frequently asked questions
What are the key differences between the ADM202EANZ and the ADM202JN?
The ADM202EANZ is an enhanced ESD-protected RS-232 transceiver in a 16-lead PDIP package, specified for operation over the industrial temperature range of −40°C to +85°C, with ±15 kV ESD protection on the RS-232 I/O pins. The ADM202JN is the standard (non-E) version in the same 16-lead PDIP package, specified for 0°C to +70°C commercial temperature range and rated for ±2 kV ESD protection. Both are dual-channel RS-232 drivers/receivers from Analog Devices.
Are the ADM202EANZ and ADM202JN pin-compatible?
Yes. Both devices are offered in the same 16-lead PDIP (N) package and share the same pinout, so they are pin-compatible. However, the ADM202EANZ's enhanced ESD rating and wider temperature range should be considered when deciding whether a direct substitution is acceptable for a given design.
What is the ESD protection difference between the ADM202EANZ and ADM202JN?
The ADM202EANZ provides ±15 kV ESD protection on the RS-232 I/O pins (per the enhanced ESD specification), while the ADM202JN is rated for ±2 kV ESD protection. Designs exposed to higher ESD stress should use the ADM202EANZ.
What temperature ranges do the ADM202EANZ and ADM202JN support?
The ADM202EANZ is specified for the industrial temperature range of −40°C to +85°C. The ADM202JN is specified for the commercial temperature range of 0°C to +70°C. The ADM202EANZ is therefore suitable for wider-temperature applications.
Do the ADM202EANZ and ADM202JN have the same supply voltage and data rate specifications?
Yes. Both are 5 V single-supply RS-232 transceivers with dual drivers and dual receivers, and both support data rates up to 120 kbps, consistent with the standard ADM202 family specifications. The primary differences are the ESD rating and operating temperature range.
Can the ADM202JN be replaced by the ADM202EANZ in an existing design?
In most cases yes, because both are pin-compatible 16-lead PDIP devices with the same 5 V supply and 120 kbps data rate. The ADM202EANZ offers higher ESD protection and a wider temperature range, so replacing the ADM202JN with the ADM202EANZ is generally an upgrade. Verify charge pump capacitor values and external component requirements against the respective datasheets before substitution.
What external capacitors are required for the ADM202EANZ and ADM202JN?
Both devices use external charge pump capacitors to generate RS-232 voltage levels from a single 5 V supply. The required capacitor values and configuration should be confirmed against the Analog Devices datasheet for each specific part, as the enhanced ESD version may specify different capacitor values for optimal ESD performance.