ADM206ANZ - 5V RS-232 Transceiver | Analog Devices
MPN: ADM206ANZ ✓ ActiveADM206ANZ Overview
An RS-232 transceiver is an interface IC that combines digital line drivers and receivers with charge-pump voltage generation. It translates logic-level signals between a host or peripheral and the bipolar, positive and negative voltage levels used by RS-232 links. As a communication interface semiconductor, it belongs to the RS-232 transceiver, interface converter, and power management signal-chain hierarchy.
The principal benefit of the ADM206ANZ is its combination of four driver channels, three receiver channels, shutdown control, and enable control in one package. Its 5 V supply reduces the need for a separate ±12 V source, while the on-board DC-to-DC converters generate the positive and negative voltages required by RS-232 drivers. The 0.1 µF external-capacitor configuration supports integration into compact multi-port serial-interface equipment.
The Analog Devices ADM206 family combines CMOS-compatible logic with RS-232 electrical-interface conversion. Four driver outputs support multiple outbound channels, while three receiver inputs return three inbound channels. A shutdown pin is used to reduce power consumption when the interface is not active, and an enable pin provides additional operating-state control. This architecture is useful when a system must manage several serial ports but cannot justify four separate single-channel interface devices.
Typical applications include industrial serial-port controllers, data-acquisition equipment, test and measurement instruments, embedded service interfaces, point-of-sale terminals, and legacy computer peripherals. The device is particularly appropriate where a modern controller provides TTL or CMOS logic but the external equipment still requires an RS-232 connection. Its multi-channel arrangement can simplify wiring and reduce the number of interface components on a control board.
Circuit design should follow the charge-pump capacitor and bypass recommendations in the manufacturer datasheet, maintain the required logic levels, and account for the additional board area of a 24-DIP package. Cable-side protection, grounding, and isolation requirements remain system-level considerations. Confirm signal polarity, receiver enable behavior, and shutdown-state pin states before using the transceiver with a new peripheral.
This product summary combines the family-level electrical functions, package information, lifecycle statement, and documented cross-reference candidates to support faster design review. It also identifies the need to verify exact pin-level substitutions rather than treating every electrically similar RS-232 device as an automatic replacement.
Drop-in alternatives for ADM206ANZ — 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 ADM206ANZ (same form factor and footprint) — differing in Package, Product Type.
ADM206AN
✅ Drop-InContact for price
View Datasheet →MAX206CNG
✅ Drop-In📋 Reference alternative (not in catalog)
MAX236CNG+
✅ Drop-In📋 Reference alternative (not in catalog)
MAX236ENG+
✅ Drop-In📋 Reference alternative (not in catalog)
ADM206ANZ Specifications
| Product Type | RS-232 transceiver |
| Driver Count | 4 drivers |
| Receiver Count | 3 receivers |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Nominal Supply Voltage | 5 V |
| Charge-Pump Capacitor | 0.1 µF |
| RS-232 Output Swing | ±9 V |
| Data Rate | 200 kBPS |
| Low-Power Consumption | 15 mW |
| Protocol | RS-232 |
| Enable Control | 1 enable pin |
| Shutdown Control | 1 shutdown pin |
| Package | 24-DIP, 0.300 inch pitch, 7.62 mm width |
| Packaging | Tube |
| Mounting Type | Through-hole |
ADM206ANZ 24-dip, 0.300 inch pitch, 7.62 mm width Pin Configuration Guide
Pin configuration for ADM206ANZ (24-dip, 0.300 inch pitch, 7.62 mm width 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 ADM206ANZ.
Refer to the datasheet for full pin configuration.
Typical Applications
ADM206ANZ is suitable for 6 applications: Industrial Serial Port Controller, Data Acquisition Equipment, Test and Measurement Instrument, Embedded Service Interface, Point-of-Sale Terminal, Legacy Computer Peripheral.
Industrial Serial Port Controller
The ADM206ANZ is suitable for industrial controllers that must communicate with legacy RS-232 equipment while operating from a 5 V logic rail. Four driver outputs can support multiple outbound service or control channels, while three receiver inputs can consolidate several inbound signals. Its approximately ±9 V output swing provides the required RS-232 levels without a separate ±12 V supply. The 24-DIP format is appropriate for through-hole control boards where rugged repairability and straightforward field wiring matter. Design the interface around the specified 0.1 µF charge-pump capacitors, controlled enable and shutdown states, and the manufacturer's logic-level requirements.
Recommended
Data Acquisition Equipment
The ADM206ANZ can connect a controller or data-acquisition chassis to external RS-232 instruments and legacy peripherals. Its four drivers and three receivers reduce the number of separate line-interface components needed for multi-channel equipment, while the single 5 V supply simplifies system power planning. Approximately ±9 V output swing supports RS-232 signaling without external bipolar supplies. Engineers should budget PCB area for the 24-DIP package and charge-pump capacitors, and should reserve protection or isolation components where the connected cable introduces electrical hazards.
Recommended
Test and Measurement Instrument
The ADM206ANZ is appropriate for test and measurement instruments that retain RS-232 control ports for host computers, service technicians, or legacy fixtures. Four transmitter channels allow instrument commands, status signals, and remote triggers to use a common multi-channel interface, while three receivers can collect responses or interlocks. The enable and shutdown pins provide useful control over an unused port and may assist power-management sequencing. Validate the documented data rate against the connected host and maintain the specified 0.1 µF charge-pump capacitance and bypass layout for stable operation.
Recommended
Embedded Service Interface
The ADM206ANZ can support an embedded service interface that must remain available for configuration, diagnostics, or firmware recovery. Multiple drivers and receivers allow the design to expose several command and status paths through one RS-232 connector arrangement, while shutdown can reduce activity when the service function is idle. Its 5 V operation is compatible with systems that already distribute regulated logic power. Confirm connector-level voltage limits, cable shield handling, and logic polarity before connecting the board to an external service laptop or controller.
Recommended
Point-of-Sale Terminal
The ADM206ANZ can serve peripheral and printer interfaces in point-of-sale equipment that still uses RS-232 command channels. Four driver outputs support separate transaction, status, or peripheral links, and three receivers can handle responses over the same multi-channel transceiver. The 5 V supply and integrated DC-to-DC converters avoid requiring a dedicated ±12 V source at the logic board. Because retail peripherals may use nonstandard handshaking or cable arrangements, verify receiver enable timing and shutdown behavior against the actual equipment before production release.
Recommended
Legacy Computer Peripheral
The ADM206ANZ is useful when a modern controller must communicate with a legacy computer peripheral that exposes one or more RS-232 ports. Combining four drivers, three receivers, enable, and shutdown in one 24-DIP device can simplify a multi-port adapter or isolation boundary. The approximately ±9 V output swing is generated from the 5 V supply, while the 200 kBPS family capability is suitable for many configuration and status links. Review the connected equipment's electrical levels, handshake timing, and signal definitions rather than assuming that all RS-232 ports use identical pinouts.
Recommended
Recommended Products Summary
Engineering reference data for ADM206ANZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADM206AN | MAX206CNG | MAX236CNG+ | MAX236ENG+ |
|---|---|---|---|---|---|
| Package | 24-DIP | 24-DIP | 24-DIP | 24-DIP | 24-DIP |
| Brand | Analog Devices | Analog Devices | Maxim Integrated | Maxim Integrated | Maxim Integrated |
Key Differentiators
- Combines four drivers, three receivers, enable, and shutdown in one 24-DIP device (vs MAX206CNG)
- Single 5 V supply produces RS-232 output levels (vs MAX236CNG+)
- Separate enable and shutdown controls for operating-state management (vs MAX236ENG+)
Design Notes
Place the specified 0.1 µF charge-pump capacitors directly beside their associated IC pins and minimize the loop area between capacitor leads and device pads. Keep the 5 V supply path and ground return short, and provide local bypass capacitance where the ADM206 family datasheet recommends it. Because the package is a 24-DIP, also account for lead spacing, soldering access, and the larger through-hole footprint when allocating board area.
Do not assume that every RS-232 transceiver is an automatic replacement. Compare pin names and electrical states for the four drivers, three receivers, enable, shutdown, charge-pump capacitors, supply, and ground. The cross-reference candidates identify possible substitutes, but the required verification includes supply range, channel direction, shutdown behavior, receiver-enable timing, and propagation delay before fitting an alternative to an existing PCB.
Keep RS-232 driver traces away from sensitive analog and high-speed digital paths, and connect the transceiver ground reference to the equipment ground strategy at a controlled point. Use the shortest practical routes between the interface IC and external connector. Cable-side protection, series impedance, and galvanic isolation are separate design functions and should be implemented according to the cable environment rather than assumed to be part of the ADM206ANZ.
The on-board converters generate approximately ±9 V driver swing from a 4.5 V to 5.5 V supply, but the charge-pump network still requires correct capacitor type, tolerance, and layout. Confirm bypass requirements and operating-current behavior in the complete manufacturer datasheet. When shutdown is used, define a safe firmware state for every enable and shutdown input so that the interface cannot activate with an indeterminate logic level.
Compliance Information
The manufacturer product page identifies the ADM206 family as in production, but no specific RoHS, REACH, halogen-free, or conflict-minerals declaration was identified for the exact ADM206ANZ ordering code.
