ADM202EAN - Dual RS-232 Driver/Receiver, 5V, 16-PDIP | Analog Devices
MPN： ADM202EAN ✓ 啟用中ADM202EAN 概覽
An RS-232 transceiver is an interface IC that converts logic-level signals from a controller or terminal into bipolar RS-232 voltages and converts received RS-232 levels back into CMOS-compatible logic. Within the signal-chain hierarchy, the ADM202EAN belongs to the RS-232 interface transceiver category and connects UART-based digital systems to unipolar, single-ended communications ports using differential bipolar signaling.
Key features include compliance with the TIA/EIA-232-E and V.28 specifications, 230 kbit/s operation, and electromagnetic-immunity provisions covering the EU 89/336/EEC EMC Directive. ESD protection is specified at 8 kV contact discharge, 15 kV air-gap discharge, and 15 kV human-body-model levels. Fast transient burst immunity is referenced to IEC 61000-4-4, while low EMI emissions are referenced to EN 55022.
The ADM202E family provides a pin-compatible upgrade path for existing ADM202, ADM232L, MAX202E, and MAX232E sockets. Its charge-pump architecture eliminates the need for a separate external 5 V-to-±10 V converter, reducing board area and component count. The 230 kbit/s capability is appropriate for industrial equipment, data-acquisition systems, point-of-sale terminals, and legacy serial-control interfaces.
For layout, the charge-pump capacitors must be placed close to their associated pins, and the interface ground must connect to the equipment chassis through the strategy specified by the application EMC standard. Cable routing and enclosure grounding often determine real-world ESD and EFT performance more than the IC rating alone.
This page combines manufacturer specifications, verified distributor availability information, drop-in socket-compatibility candidates, and practical interface-design guidance to support component selection and PCB implementation.
直接替換替代品，適用於 ADM202EAN — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ADM202EAN （相同外形與佔位） — 差異在於 Data Rate, Package, Supply Voltage.
MAX202EPE
✅ 直接替換📋 參考替代品（不在目錄中）
MAX232EPE
✅ 直接替換聯絡詢價
查看資料表 →ADM202EAN 規格
| Number of Channels | 2 channels |
| 介面類型 | RS-232 line driver/receiver |
| 供應電壓 | 5 V |
| 資料速率 | 230 kbit/s |
| RS-232 Output Levels | ±10 V |
| Charge-Pump Capacitor Value | 0.1 µF minimum |
| RS-232 Compliance | TIA/EIA-232-E and V.28 |
| ESD Protection, Contact | 8 kV |
| ESD Protection, Air Gap | 15 kV |
| ESD Protection, Human Body Model | 15 kV |
| EMC Directive | 89/336/EEC |
| Fast Transient Burst Immunity | IEC 61000-4-4 |
| EMI Emissions Reference | EN 55022 |
| 封裝 | 16-pin PDIP |
| 安裝類型 | Through-hole |
| Supply Configuration | Single 5 V supply |
ADM202EAN 16-pin pdip 腳位配置指南
ADM202EAN（16-pin pdip 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： ADM202EAN.
請參閱 資料表 以查看完整腳位配置。
典型應用
ADM202EAN 適用於 6 應用s: Industrial Serial Port Interface, Data-Acquisition and Test Equipment, Point-of-Sale and Retail Terminal, Legacy Controller and Peripheral Upgrade, Industrial Control Panel, Communications and Network Management Console.
Industrial Serial Port Interface
The ADM202EAN fits industrial controller and data-acquisition equipment that retains an RS-232 port but must operate from a single 5 V rail. Its documented 230 kbit/s maximum rate provides ample margin for command and telemetry traffic, while the on-chip charge pump reduces the external supply circuitry to capacitors as small as 0.1 µF. The 16-pin PDIP footprint also supports legacy control boards with through-hole sockets. Because industrial ports are exposed to cable-borne transients, the documented 8 kV contact and 15 kV air-gap ESD ratings should be combined with chassis grounding and appropriately selected external surge protection.
推薦
Data-Acquisition and Test Equipment
The ADM202EAN is appropriate for laboratory instruments and automated test systems that need a robust legacy serial-control channel. Operation up to 230 kbit/s supports faster command transfer than many slow RS-232 control ports, and the single 5 V supply simplifies internal power planning. TIA/EIA-232-E and V.28 compliance provides a defined interface baseline for legacy equipment. Designers should keep charge-pump loop routing compact, provide the datasheet-specified capacitor types and voltage ratings, and verify that bench-side cables connect chassis ground in a way that does not create additional ground-current paths.
推薦
Point-of-Sale and Retail Terminal
The ADM202EAN can serve legacy point-of-sale terminals, receipt peripherals, and service consoles that communicate over RS-232. Its 2-channel driver/receiver arrangement allows bidirectional control without a separate line-driver IC, and the 16-pin PDIP package supports repair-friendly through-hole assemblies. The single 5 V supply reduces external power-tree complexity, while the 230 kbit/s capability comfortably covers peripheral traffic. In retail equipment installed near mains-powered systems, engineers should retain the verified ESD and transient-immunity ratings while confirming that the enclosure, cable shield, and protective earth follow the applicable product-emissions standard.
推薦
Legacy Controller and Peripheral Upgrade
The ADM202EAN is well suited to upgrading an older controller or peripheral board where a 16-pin PDIP RS-232 socket must be retained. Analog Devices identifies the ADM202E family as a pin-compatible upgrade for ADM202, ADM232L, MAX202E, and MAX232E sockets, allowing mechanical reuse while adding a documented robust ESD and EMC feature set. Before substituting, compare the exact charge-pump capacitor values and ensure that any receiver fail-state or enable differences will not alter firmware behavior. The 0.1 µF-capable charge pump helps limit board area on already crowded legacy boards.
推薦
Industrial Control Panel
The ADM202EAN can interface service ports or configuration connectors on industrial control panels, where a wired RS-232 service channel is easier to field-support than a wireless link. The dual-channel implementation supports both transmit and receive paths, while the 5 V-only supply requirement simplifies connection to control-panel rails. Documented ESD protection of 8 kV contact and 15 kV air gap supports robust service-port use, provided the connector and enclosure implement equivalent precautions. Keep the interface ground and cable shield referenced according to the manufacturer’s EMC guidance, and confirm the operating-temperature grade against the verified data before final release.
推薦
Communications and Network Management Console
The ADM202EAN is suitable for network-management and communications equipment that retains an RS-232 console for configuration, logging, or out-of-band access. A 230 kbit/s interface rate provides sufficient bandwidth for console traffic, and the single 5 V supply is convenient in multi-rail communications hardware. Its documented EMC and ESD immunity features help designers meet real-world installation conditions, but the interface still requires a controlled chassis and cable strategy. The 16-pin PDIP package favors serviceable legacy and industrial designs; compact new platforms may prefer a surface-mount transceiver after confirming electrical and pin compatibility.
推薦
推薦產品摘要
工程參考資料，適用於 ADM202EAN — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MAX202EPE | MAX232EPE |
|---|---|---|---|
| Package | 16-pin PDIP | 16-pin PDIP | 16-pin PDIP |
| Brand | Analog Devices | Maxim Integrated | Maxim Integrated |
| Number of Channels | 2 RS-232 channels | 2 RS-232 channels | 2 RS-232 channels |
| Supply Voltage | 5 V | 5 V | 5 V |
主要差異化特點
- Documented interface robustness in the ADM202E family (對比MAX202EPE)
- Compact external charge-pump requirement (對比MAX232EPE)
- High throughput for a legacy bipolar interface (對比MAX202EPE)
設計說明
Place the charge-pump capacitors as close as practical to the ADM202EAN pins identified in the manufacturer data sheet, and keep the associated traces short to limit switching-current loops. Although the charge pump operates from 0.1 µF-capable capacitors, using the exact manufacturer-recommended capacitance, dielectric class, and voltage rating is important for reliable startup and low EMI. Do not substitute the generic MAX232 capacitor arrangement without verifying the ADM202E pin functions and recommended values.
An IC-level ESD rating does not by itself guarantee system compliance. Connect the interface ground to chassis or protective earth using the grounding architecture specified by the applicable product standard, and use a shielded cable with a chassis-referenced connector shell where the RS-232 port is externally accessible. The verified 8 kV contact and 15 kV air-gap ESD levels should be confirmed in the assembled equipment, since connector selection, cable length, and grounding topology materially affect the result.
Do not assume that any device described as an RS-232 transceiver is automatically drop-in replaceable. The ADM202EAN is a 16-pin PDIP part with a specific charge-pump connection arrangement. Before substituting MAX202EPE or MAX232EPE, compare the numbered pinout, external capacitor values and types, V+ and V- connections, receiver outputs, and supply decoupling. Also check whether the original board relies on receiver fail-state behavior that could change the interpretation of a disconnected or shorted cable.
合規資訊
The verified data states compliance with the 89/336/EEC EMC Directive and references IEC 61000-4-4 transient immunity and EN 55022 emissions. These EMC references are not substitutes for material-compliance declarations. RoHS, REACH, lead-free, halogen-free, and conflict-minerals status were not present in the supplied data.