Part A
ADM3232EARUZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5292 PCS
- Package
- TSSOP-16
- Series
- Interface - Condutores, Receptores, Transceivers
Replacement verdict
Compatible functional replacement candidate
The ADM3232EARUZ is a functional replacement candidate for the ADM3202ARUZ, sharing the same TSSOP-16 footprint, dual RS-232 driver/receiver architecture, and 3.3 V supply rail. Designers should validate the enhanced ESD protection level and the extended data rate before adopting the ADM3232EARUZ in place of the ADM3202ARUZ in existing designs.
Package Type
High match
Supply Voltage
High match
Data Rate
Validation required
ESD Protection
Validation required
Parts at a glance
Part B
ADM3202ARUZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 7356 PCS
- Package
- TSSOP-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 | ADM3202ARUZ | ADM3232EARUZ | Why it matters |
|---|---|---|---|
| Data Rate | 460 kbps | 460 kbps | Maximum guaranteed data rate; both support the same throughput, so speed is not a differentiator. |
| ESD Protection (IEC 61000-4-2, RS-232 pins) | ±8 kV contact / ±15 kV air (typical spec) | ±15 kV contact / ±15 kV air (enhanced ESD) | The E version offers higher ESD robustness, improving reliability in harsh or exposed interface environments. |
| Number of Drivers / Receivers | 2 / 2 | 2 / 2 | Both provide dual transceivers, so channel count is identical and functionally interchangeable. |
| Supply Voltage | 3.0 V to 5.5 V | 3.0 V to 5.5 V | Both operate over the same wide supply range, allowing use in 3.3 V and 5 V systems. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Identical industrial temperature range; no difference for thermal design or derating. |
| Package / Pin Count | TSSOP-16 | TSSOP-16 | Same package and pinout enable drop-in board replacement without layout changes. |
| Charge Pump Capacitors | 4 external capacitors (0.1 µF) | 4 external capacitors (0.1 µF) | Identical external capacitor requirements simplify BOM and layout reuse. |
| Shutdown / Enable Feature | No shutdown pin | No shutdown pin | Neither device offers a shutdown mode, so power management behavior is equivalent. |
| Receiver Input Impedance | 5 kΩ (RS-232 standard) | 5 kΩ (RS-232 standard) | Both meet the RS-232 5 kΩ minimum load, ensuring standard-compliant interoperability. |
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 | ADM3232EARUZ | ADM3202ARUZ |
|---|---|---|
| Part Status | Active | Active |
| Type | Transceiver | Transceiver |
| Protocol | RS232 | RS232 |
| Number of Drivers/Receivers | 2/2 | 2/2 |
| Duplex | Full | Full |
| Receiver Hysteresis | 500 mV | 400 mV |
| Data Rate | 460Kbps | 460Kbps |
| Voltage - Supply | 3V ~ 5.5V | 3V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the primary differences between the ADM3202ARUZ and ADM3232EARUZ?
The ADM3202ARUZ is a 3.3 V, dual-channel RS-232 transceiver with a 460 kbps data rate and 0.1 µF charge pump capacitors. The ADM3232EARUZ is a 3.3 V, dual-channel RS-232 transceiver with a 460 kbps data rate, integrated ESD protection (up to ±15 kV on RS-232 pins), and 0.1 µF charge pump capacitors. The key difference is that the ADM3232EARUZ includes enhanced ESD protection, while the ADM3202ARUZ does not specify the same level of integrated ESD protection.
Are the ADM3202ARUZ and ADM3232EARUZ pin-compatible?
Yes, both devices are offered in the same 16-lead TSSOP (RU-16) package and share the same pinout, allowing them to be used interchangeably on the same PCB footprint. However, designers should verify the ESD protection requirements of the target application before substituting one for the other.
What is the data rate capability of each device?
Both the ADM3202ARUZ and ADM3232EARUZ support a maximum data rate of 460 kbps, which is suitable for standard RS-232 communication in industrial and instrumentation applications.
Do both devices require the same external charge pump capacitors?
Yes, both the ADM3202ARUZ and ADM3232EARUZ use 0.1 µF charge pump capacitors, allowing them to operate from a single 3.3 V supply while generating the required RS-232 voltage levels.
What is the difference in ESD protection between the two parts?
The ADM3232EARUZ features integrated ESD protection on the RS-232 I/O pins, rated for ±15 kV human body model (HBM) and ±8 kV IEC 61000-4-2 contact discharge, making it suitable for applications exposed to harsh environments. The ADM3202ARUZ does not specify this enhanced ESD protection level in its datasheet, so external ESD protection may be required in sensitive applications.
Can the ADM3232EARUZ be used as a drop-in replacement for the ADM3202ARUZ?
Yes, the ADM3232EARUZ is pin-compatible and functionally equivalent to the ADM3202ARUZ, with the added benefit of enhanced ESD protection. It can be used as a drop-in replacement in most designs, provided the application does not require the specific characteristics of the ADM3202ARUZ.
What are the operating temperature ranges for these devices?
Both the ADM3202ARUZ and ADM3232EARUZ are specified for operation over the industrial temperature range of −40°C to +85°C, making them suitable for a wide range of industrial and commercial applications.
Which device is better suited for applications requiring high ESD robustness?
The ADM3232EARUZ is better suited for applications requiring high ESD robustness, as it includes integrated ±15 kV HBM and ±8 kV IEC 61000-4-2 ESD protection on the RS-232 pins. The ADM3202ARUZ does not specify this level of protection, so external ESD components may be needed.