Part A
ADM213EARSZ
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 5167 PCS
- Package
- SSOP-28
- Series
- Interfaces - pilotes, récepteurs, émetteurs - récepteurs
Replacement verdict
Compatible functional replacement candidate
The ADM213EARSZ and ADM211EARS are both RS-232 transceivers from the same Analog Devices ADM2xxE family, sharing identical 28-pin SSOP packaging, 5 V single-supply operation, and the same 120 kbps data rate class. The ADM213EARSZ integrates four charge-pump capacitors on-chip, whereas the ADM211EARS requires four external capacitors, so the ADM213EARSZ can serve as a functionally compatible replacement for the ADM211EARS provided the board layout accommodates the reduced external capacitor count and the driver/receiver channel configuration is verified against the target application.
Package Type
High match
Supply Voltage
High match
Driver/Receiver Channel Count
Validation required
External Capacitor Requirement
Validation required
Parts at a glance
Part B
ADM211EARS
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 7504 PCS
- Series
- Interfaces - pilotes, récepteurs, émetteurs - récepteurs
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 | ADM211EARS | 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 must meet the application's signaling speed; both are equal. |
| 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 | Charge pump capacitor count affects board layout and BOM; both require the same external capacitor arrangement. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Temperature range must cover the application environment; both are industrial-grade. |
| Package / Mounting | 28-Lead SSOP (surface mount) | 28-Lead SSOP (surface mount) | Package and footprint must be compatible for drop-in substitution; both use the same SSOP package. |
| ESD Protection (RS-232 Pins) | ±15 kV (IEC 1000-4-2 Air/Ground) | ±15 kV (IEC 1000-4-2 Air/Ground) | ESD robustness protects the interface in harsh environments; both offer the same enhanced ESD rating. |
| Shutdown / Enable Feature | Yes (active-low shutdown) | Yes (active-low shutdown) | Shutdown capability enables power savings in idle states; both support it. |
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 | ADM213EARSZ | ADM211EARS |
|---|---|---|
| Part Status | Active | Obsolete |
| Type | Transceiver | Transceiver |
| Protocol | RS232 | RS232 |
| Number of Drivers / Receivers | - | 4/5 |
| Duplex | Full | Full |
| Receiver Hysteresis | 650 mV | 650 mV |
| Data Rate | 230kbps | 120Kbps |
| 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 |
| Base Product Number | - | ADM211 |
| Number of Drivers/Receivers | 4/5 | - |
Frequently asked questions
What are the key differences between the ADM213EARSZ and ADM211EARS?
Both are RS-232 transceivers in a 28-lead SSOP package from Analog Devices. The ADM213EARSZ integrates four external 0.1 µF charge-pump capacitors, whereas the ADM211EARS requires four external capacitors for its on-chip charge pump. The ADM213EARSZ also features an active-low enable control and a shutdown mode that reduces supply current, while the ADM211EARS provides a standby mode. Pin functions and driver/receiver counts (4 drivers, 5 receivers) are otherwise similar, so substitution requires verification of capacitor count, control pin behavior, and current consumption against the target design.
Are the ADM213EARSZ and ADM211EARS pin-compatible?
No. Although both use the same 28-lead SSOP (RS-28) package, the ADM213EARSZ integrates the charge-pump capacitors internally and exposes different pin functions, including enable and shutdown controls, compared with the ADM211EARS, which requires external capacitors on dedicated pins. A direct drop-in replacement is therefore not possible without reviewing the pinout and external component requirements in the respective datasheets.
What supply voltage do the ADM213EARSZ and ADM211EARS require?
Both devices operate from a single +5 V supply (nominally 5 V ±10%, i.e., 4.5 V to 5.5 V) and generate the RS-232 voltage levels internally via their on-chip charge pumps. Designs should confirm the exact supply tolerance and current budget from the Analog Devices datasheets for each part.
How many drivers and receivers do the ADM213EARSZ and ADM211EARS provide?
Both the ADM213EARSZ and ADM211EARS are 4-driver, 5-receiver RS-232 transceivers. This configuration supports full-duplex plus additional handshake lines, making them suitable for serial ports requiring multiple control signals.
Do the ADM213EARSZ and ADM211EARS support shutdown or standby power-saving modes?
Yes. The ADM213EARSZ includes a shutdown mode that reduces supply current to a low level and places the drivers and receivers in a high-impedance state. The ADM211EARS provides a standby mode for power savings. The exact quiescent and shutdown/standby current values should be taken from the Analog Devices datasheets, as they differ between the two parts.
What data rate can the ADM213EARSZ and ADM211EARS support?
Both devices are specified for RS-232 data rates up to 120 kbps, which is sufficient for standard serial communication. Designs operating at higher rates should verify the timing and slew-rate specifications in the manufacturer datasheets.
Can the ADM213EARSZ replace the ADM211EARS in an existing design?
Not as a direct drop-in. Because the ADM213EARSZ integrates the charge-pump capacitors and adds enable/shutdown control pins, the PCB layout, external capacitor placement, and control-signal wiring must be reviewed. Replacement is possible only after validating pin functions, external component changes, and power-mode behavior against the Analog Devices datasheets for both parts.