Part A
ADM211EARSZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4657 PCS
- Package
- SSOP-28
- Series
- Interface - Condutores, Receptores, Transceivers
Replacement verdict
Compatible functional replacement candidate
The ADM213EARSZ and ADM211EARSZ are functionally compatible RS-232 transceivers from the same Analog Devices ADM2xxE family, sharing an identical SSOP-28 package, pinout, supply voltage range, and data rate. The ADM213EARSZ integrates four charge-pump capacitors on-chip, whereas the ADM211EARSZ requires four external capacitors, so the ADM213EARSZ can directly replace the ADM211EARSZ in most designs with only minor BOM and layout adjustments. Designers should confirm the reduced external capacitor count and verify the exact driver/receiver channel configuration against their specific application requirements before substitution.
Package and Pinout
High match
Supply Voltage Range
High match
Data Rate
High match
External Capacitor Requirement
Validation required
Parts at a glance
Part B
ADM213EARSZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5167 PCS
- Package
- SSOP-28
- 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 | ADM213EARSZ | ADM211EARSZ | Why it matters |
|---|---|---|---|
| Number of Drivers | 4 | 4 | Driver count determines how many transmit lines the interface can drive; both match here. |
| Number of Receivers | 5 | 5 | Receiver count determines how many receive lines are supported; both match here. |
| Data Rate | 120 kbps | 120 kbps | Maximum data rate affects compatibility with the host UART and cabling; identical here. |
| Supply Voltage | 5 V | 5 V | Operating supply voltage must match the system rail; both are 5 V single-supply devices. |
| Number of Charge Pump Capacitors | 4 external capacitors | 4 external capacitors | External charge-pump capacitor count affects board layout and BOM; both require four. |
| Shutdown / Enable Feature | Yes (active-low SHDN) | Yes (active-low SHDN) | Shutdown capability allows power savings in idle states; both support it. |
| Package | 28-lead SSOP | 28-lead SSOP | Package footprint must match the PCB land pattern for drop-in substitution; both are 28-lead SSOP. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Temperature range determines suitability for industrial environments; both are industrial-grade. |
| RS-232 Interface Standard | EIA/TIA-232-E compliant | EIA/TIA-232-E compliant | Compliance with the RS-232 standard ensures interoperability with legacy serial equipment; both comply. |
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 | ADM211EARSZ | ADM213EARSZ |
|---|---|---|
| Part Status | Active | Active |
| Type | Transceiver | Transceiver |
| Protocol | RS232 | RS232 |
| Number of Drivers/Receivers | 4/5 | 4/5 |
| Duplex | Full | Full |
| Receiver Hysteresis | 650 mV | 650 mV |
| Data Rate | 120Kbps | 230kbps |
| 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 ADM213EARSZ and ADM211EARSZ?
Both are RS-232 transceivers in a 28-lead SSOP package from Analog Devices. The primary difference is the number of drivers and receivers: the ADM213EARSZ integrates four drivers and five receivers, while the ADM211EARSZ integrates four drivers and four receivers. Both devices include an on-board charge pump and operate from a single +5 V supply.
Are the ADM213EARSZ and ADM211EARSZ pin-compatible?
No. Because the ADM213EARSZ provides five receivers versus four on the ADM211EARSZ, the pin functions differ. The ADM213EARSZ uses the additional receiver input/output pins that are not present on the ADM211EARSZ, so the two devices are not drop-in replacements for each other without verifying the PCB layout against the respective datasheets.
What supply voltage do the ADM213EARSZ and ADM211EARSZ require?
Both devices operate from a single +5 V ±5% supply and generate the required RS-232 voltage levels internally via an on-chip charge pump, eliminating the need for a separate ±12 V supply.
Do the ADM213EARSZ and ADM211EARSZ support ESD protection?
Yes. Both devices are specified with ESD protection on the RS-232 input/output pins, rated to ±15 kV using the Human Body Model (HBM), which helps protect the interface in harsh environments.
What data rate can the ADM213EARSZ and ADM211EARSZ support?
Both transceivers are specified for data rates up to 120 kbps, making them suitable for standard RS-232 communication links.
Do the ADM213EARSZ and ADM211EARSZ feature a shutdown mode?
Yes. Both devices include a low-power shutdown mode that reduces supply current to a few microamperes, allowing the transceiver to be disabled when not in use to conserve power in battery-operated or portable systems.
In which applications would the ADM213EARSZ be preferred over the ADM211EARSZ?
The ADM213EARSZ is preferred when an additional receiver channel is needed, such as in systems requiring monitoring of an extra RS-232 line or implementing a ring-indicator or DCD function alongside the standard data lines. The ADM211EARSZ is sufficient when four receivers meet the interface requirement.