ADM206AR - 4/3 +5V RS-232 Transceiver | Analog Devices
MPN: ADM206AR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.16 | $1.16 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
ADM206AR Overview
What is an RS-232 transceiver? An RS-232 transceiver combines line drivers and receivers that translate between digital logic levels and bipolar serial-interface signals. The driver channels transmit data, while receiver channels interpret incoming RS-232 levels. In the broader hierarchy, it is an interface transceiver, a communications IC, and a semiconductor designed for point-to-point serial data links.
The ADM206AR is especially useful when a system has only a +5 V supply but requires the voltage levels and noise immunity associated with RS-232. Its four-driver and three-receiver arrangement can serve several channels where space is constrained. The manufacturer describes the device as a 200 kbps RS-232 transceiver with an integrated shutdown function and enable control.
Operationally, the device uses charge-pump circuitry to generate the bipolar signal levels required by RS-232 from the single positive supply. The verified product description identifies 0.1 µF capacitors for charge-pump operation and reports a 9 V output swing with a +5 V supply. The receivers accept input voltages identified in the source data as extending to 30 V, which helps when the interface cable introduces larger transients or sees voltage offsets.
Typical applications include serial adapters, embedded instrumentation, industrial control links, test equipment, and legacy computer peripherals. Because the ADM206AR includes both shutdown and enable pins, it can support systems that need controlled power states or channel management. The 24-SOIC package also remains convenient for through-hole and mixed-signal PCB assembly.
When laying out the circuit, place the charge-pump capacitor and interface protection components according to the manufacturer’s recommended layout and keep the RS-232 connector-side traces physically separated from sensitive logic where practical. Confirm the exact receiver enable, shutdown, and channel pin assignments against the official ADM206 datasheet before final PCB release.
This page combines verified manufacturer and distributor information, package-aware replacement guidance, interface design considerations, and application-oriented selection context. It is intended to help engineers evaluate the ADM206AR against alternatives without assuming that every RS-232 IC is pin-compatible.
Drop-in alternatives for ADM206AR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ADM206AR (same form factor and footprint) — differing in Package, Data Rate, Mounting Type, Function, Operating Temperature Range.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADM202JRN
✅ Drop-In📋 Reference alternative (not in catalog)
ADM202EARNZ
✅ Drop-In📋 Reference alternative (not in catalog)
MAX211CAI+
✅ Drop-In✓ In Stock
$5.3 / Unit
View Datasheet →MAX213ECAI+
✅ Drop-In✓ In Stock
$4.55 / Unit
View Datasheet →MAX202CPE+
✅ Drop-In✓ In Stock
$3.55 / Unit
View Datasheet →ADM206AR Specifications
| Product Type | RS-232 transceiver |
| Supply Voltage | +5 V |
| Driver Count | 4 |
| Receiver Count | 3 |
| Data Rate | 200 kbps |
| Charge-Pump Capacitor | 0.1 µF |
| Output Swing | 9 V |
| Receiver Input Levels | 30 V |
| Power Consumption | 15 mW |
| Shutdown Control | Shutdown pin |
| Enable Control | Enable pin |
| Interface Standard | EIA-232-E and V.28 |
| Package | 24-SOIC |
| Mounting Type | Surface Mount |
| Supply Type | Single +5 V powered |
| Technology | CMOS RS-232 |
ADM206AR 24-soic Pin Configuration Guide
Pin configuration for ADM206AR (24-soic package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for ADM206AR.
Refer to the datasheet for full pin configuration.
Typical Applications
ADM206AR is suitable for 6 applications: Single-Supply Serial Adapters, Industrial Control Interfaces, Legacy Computer Peripherals, Test and Measurement Equipment, Embedded Serial Control Panels, Data Acquisition and Remote I/O.
Single-Supply Serial Adapters
The ADM206AR is useful when a board has only a +5 V rail but needs to expose an RS-232 port. Its CMOS charge-pump architecture provides the bipolar signal levels required by the interface, while the 0.1 µF capacitor requirement keeps the external support network compact. With four drivers and three receivers, the device can consolidate several low-speed serial functions when the system has a 200 kbps-class link. The design should still verify pin mapping, connector protection, and cable length against the official datasheet.
Recommended
Industrial Control Interfaces
ADM206AR can fit legacy industrial control equipment that uses RS-232 rather than RS-485 or Ethernet. The +5 V supply requirement simplifies systems without positive and negative rail generation, while three receivers and four drivers provide flexibility for multiple command or status lines. The stated 30 V receiver input levels can help with larger cable-induced voltage excursions, but industrial deployment still requires checking temperature range, isolation, surge protection, grounding, and EMC requirements that are not fully specified in the supplied data.
Recommended
Legacy Computer Peripherals
The ADM206AR is appropriate for legacy peripherals and service equipment that still presents an RS-232 port. Its 200 kbps capability is more than adequate for many control, configuration, and diagnostic channels, and the 24-SOIC package simplifies mixed-signal board assembly. When connecting to an older host, verify the host’s electrical standard, connector gender, flow-control method, and logic polarity. The device’s shutdown and enable pins can also support systems that need controlled operating states.
Recommended
Test and Measurement Equipment
A 200 kbps RS-232 link can be useful for instrument control, calibration systems, and laboratory equipment where the host interface remains RS-232. ADM206AR’s four drivers and three receivers allow multiple handshake or status signals without requiring four separate interface packages. The single +5 V architecture is useful in compact instrument designs, but analog and digital grounds should be managed carefully. Add appropriate transient protection at the connector because the verified data does not specify a complete external protection network.
Recommended
Embedded Serial Control Panels
ADM206AR can serve an embedded controller that must communicate with a local service port, operator panel, or configuration fixture. The device provides a compact way to translate CMOS logic into RS-232 levels from a +5 V supply, and its four transmitter channels can support data plus control signals when the host interface requires them. Designers should define logic states during shutdown and enable transitions, verify whether unused receiver outputs are acceptable, and test the assembled board with the intended cable and grounding arrangement.
Recommended
Data Acquisition and Remote I/O
For legacy remote I/O or data-acquisition modules, ADM206AR can provide a multi-channel RS-232 connection when +5 V is the available supply. The interface is intended for EIA-232-E and V.28 links, making it suitable for systems whose external equipment predates differential buses. Use the stated 200 kbps rate as the device rating, not a guarantee for every cable length or data protocol. Validate timing, isolation, surge immunity, and grounding before using the part in a remote enclosure.
Recommended
Recommended Products Summary
Engineering reference data for ADM206AR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADM202JRN | ADM202EARNZ | MAX211 | MAX213 | MAX202 |
|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Package | 24-SOIC | 24-SOIC reported | 24-SOIC reported | 28-SOIC reported | 24-SOIC reported | 24-SOIC reported |
Key Differentiators
- Four-driver, three-receiver channel arrangement (vs MAX202)
- Integrated shutdown and enable controls (vs ADM202JRN)
- 200 kbps rated interface speed (vs MAX211)
- Single +5 V supply operation (vs MAX213)
Design Notes
The ADM206AR is specified for +5 V operation, but the charge-pump network and interface outputs still require careful power-supply design. Place the specified 0.1 µF charge-pump capacitor close to the relevant device pins and follow the manufacturer’s recommended layout. Use a stable supply with adequate decoupling, and verify startup, shutdown, and enable behavior in the assembled board because the supplied data does not state detailed current limits.
Treat the RS-232 connector side as a potentially noisy interface region. Keep connector-side routing physically separated from sensitive logic where practical, use a clear ground-return strategy, and place transient-protection components near the connector. The verified data identifies a 24-SOIC package but does not provide the complete pinout or application layout, so use the official ADM206 datasheet before routing the PCB.
Do not assume that every 24-SOIC RS-232 transceiver is a drop-in replacement. ADM206AR has four drivers, three receivers, shutdown and enable functions, and a stated 200 kbps rating; another device may differ in channel count, control polarity, receiver enable behavior, or pin assignment. Verify the complete pin map, supply requirements, charge-pump capacitor value, and logic levels before substitution.
The 200 kbps specification is a device rating, not a guarantee of usable performance over every cable or data protocol. Account for cable capacitance, reflections, grounding, connector wiring, and the remote device’s RS-232 thresholds. If the link fails intermittently, test with a short controlled cable first, then evaluate protection, grounding, baud rate, and the remote receiver before changing components.
Compliance Information
The supplied verified web data does not explicitly state RoHS, REACH, lead-free, halogen-free, or conflict-mineral status for ADM206AR.
