Part A
ADM3222ARUZ
ADI公司
- Lifecycle
- Active
- Stock
- 1215 件
- Package
- TSSOP-20
- Series
- 介面-驅動器、接收器、收發器
Replacement verdict
Compatible functional replacement candidate
The ADM3232EARUZ and ADM3222ARUZ are functionally compatible RS-232 transceivers in the same TSSOP-20 package with matching pinout, supply voltage range, and dual-driver/dual-receiver topology, making the ADM3232EARUZ a viable replacement candidate for the ADM3222ARUZ. Designers should validate the ESD rating and data-rate margin against their specific application requirements before final qualification.
Package Type
High match
Pin Configuration
High match
Supply Voltage Range
High match
ESD Rating
Validation required
Parts at a glance
Part B
ADM3232EARUZ
ADI公司
- Lifecycle
- Active
- Stock
- 5292 件
- Package
- TSSOP-16
- Series
- 介面-驅動器、接收器、收發器
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADM3232EARUZ | ADM3222ARUZ | Why it matters |
|---|---|---|---|
| Number of Drivers/Receivers | 2/2 | 2/2 | Both are dual transceivers, so the channel count is functionally equivalent for RS-232 interfacing. |
| Data Rate | 460 kbps | 200 kbps | The higher data rate of the ADM3232EARUZ supports faster serial communication, which may matter for high-throughput links. |
| ESD Protection (IEC 61000-4-2, Contact) | ±15 kV | ±8 kV | Higher ESD immunity improves robustness in harsh environments and reduces field failures. |
| Supply Voltage | 3.0 V to 5.5 V | 3.0 V to 5.5 V | Both operate over the same supply range, allowing use in 3.3 V and 5 V systems interchangeably. |
| Number of External Capacitors | 4 (0.1 µF) | 4 (0.1 µF) | Identical charge-pump capacitor requirements simplify board-level substitution. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Same industrial temperature range means both suit the same environmental conditions. |
| Package | 16-Lead TSSOP | 16-Lead TSSOP | Identical package and pinout enable drop-in replacement on the same PCB footprint. |
| Shutdown / Enable Feature | Yes | Yes | Both offer shutdown capability, allowing power savings when the interface is idle. |
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 | ADM3222ARUZ | ADM3232EARUZ |
|---|---|---|
| Part Status | Active | Active |
| Type | Transceiver | Transceiver |
| Protocol | RS232 | RS232 |
| Number of Drivers/Receivers | 2/2 | 2/2 |
| Duplex | Full | Full |
| Receiver Hysteresis | 400 mV | 500 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 key differences between the ADM3232EARUZ and ADM3222ARUZ?
Both are dual-channel RS-232 transceivers in a 20-lead TSSOP package from Analog Devices. The ADM3232EARUZ features an internal charge pump with a 3.3 V supply and supports data rates up to 460 kbps, while the ADM3222ARUZ operates from a 3.3 V supply with an external charge pump and supports data rates up to 200 kbps. The ADM3232E also includes enhanced ESD protection (up to ±15 kV on RS-232 pins), whereas the ADM3222A offers standard ESD protection.
Are the ADM3232EARUZ and ADM3222ARUZ pin-compatible?
Yes, both devices are offered in the same 20-lead TSSOP (RU-20) package and share a compatible pinout, allowing them to be used in the same PCB footprint. However, designers should verify the charge pump configuration and external capacitor requirements, as the ADM3222ARUZ requires external charge pump capacitors while the ADM3232EARUZ integrates the charge pump.
What data rate does each device support?
The ADM3232EARUZ supports data rates up to 460 kbps, while the ADM3222ARUZ supports data rates up to 200 kbps. The higher data rate of the ADM3232EARUZ makes it suitable for higher-speed serial communication applications.
What is the difference in ESD protection between the two parts?
The ADM3232EARUZ provides enhanced ESD protection of up to ±15 kV on the RS-232 I/O pins using the Human Body Model (HBM), making it more robust in harsh environments. The ADM3222ARUZ offers standard ESD protection levels typical of the ADM3222 series, which are lower than the enhanced protection of the ADM3232E.
Do both devices require external charge pump capacitors?
No. The ADM3232EARUZ integrates the charge pump and requires only four small external capacitors (typically 0.1 µF) for operation. The ADM3222ARUZ uses an external charge pump configuration and requires external capacitors for the charge pump circuitry, which must be selected per the datasheet recommendations.
What is the operating supply voltage and current consumption of each device?
Both devices operate from a single 3.3 V supply (typically 3.0 V to 3.6 V). The ADM3232EARUZ typically draws low supply current suitable for battery-powered applications, while the ADM3222ARUZ also features low power consumption. For precise quiescent and shutdown current specifications, refer to the respective Analog Devices datasheets, as values may differ between the two parts.
Can the ADM3232EARUZ be used as a drop-in replacement for the ADM3222ARUZ?
Because both devices share the same 20-lead TSSOP package and compatible pinout, the ADM3232EARUZ can often serve as a replacement for the ADM3222ARUZ. However, designers must confirm that the external capacitor configuration, data rate requirements, and ESD protection levels meet the target application's needs, and validate the substitution against the official Analog Devices datasheets.