ADM202JN - Dual 120kbps RS-232 Transceiver | Analog Devices
料号： ADM202JN ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
ADM202JN 概述
An RS-232 transceiver is an interface IC that converts low-voltage digital logic levels into differential bipolar line voltages for transmission and converts received line voltages back into logic-compatible signals. The ADM202 belongs to the RS-232 transceiver class, which includes line drivers, line receivers, level-shifting circuitry, and charge-pump voltage generation. It is intended to bridge a host controller or UART with an external RS-232 connector while operating from a single 5 V rail.
Key features include two RS-232 drivers, two RS-232 receivers, a 120 kB/s data rate, 0.1 µF charge-pump capacitors, and integrated on-board DC-DC conversion. The supplied data identifies the output levels as ±10 V and states that the device meets or exceeds TIA/EIA-232-E and V.28 specifications. The 16-PDIP package is a through-hole package suitable for conventional PCB sockets and legacy communication equipment.
The ADM202 architecture combines digital input/output compatibility with analog line-driver and receiver functions. Its charge-pump converter avoids a separate negative supply for RS-232 transmission while reducing the external capacitor requirement to 0.1 µF. The receiver side translates the bipolar RS-232 signal into a logic-level output suitable for a UART or microprocessor. Exact propagation-delay, input-threshold, output-current, and absolute-maximum values are not supplied in the verified excerpts and are marked for data collection rather than inferred.
Typical uses include industrial serial adapters, data-acquisition equipment, service interfaces, test systems, embedded control consoles, and legacy peripheral connections. The part is most appropriate where the system already uses a true RS-232 physical interface and requires a compact two-channel transceiver rather than a modern differential bus such as RS-485. The ±10 V output capability helps provide the voltage swing expected by RS-232 receivers while the single 5 V supply simplifies system power design.
Designers should verify the external charge-pump capacitor connection, pin orientation, logic-level compatibility, receiver hysteresis, and cable-side protection against the manufacturer datasheet. Do not treat RS-232 as a long-distance differential communication standard; cable length, grounding, connector pin assignment, and EMI conditions still determine practical reliability. The supplied data also indicates that the ADM202JN is an obsolete-style 16-DIP product, so sourcing and lifecycle confirmation should be checked before new production commitments.
This product page combines the verified Analog Devices function description, distributor package identification, and public cross-reference leads with engineering-focused selection, application, and sourcing guidance. It distinguishes verified facts from missing parameters and does not invent pricing, pin names, or electrical values that were not present in the supplied data.
直接替换替代料： ADM202JN ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ADM202JN （相同外形与封装尺寸） ——差异在于 ESD Protection, Product Type, Supply Voltage, Interface Standard, Mounting Type.
快速对比工具——选择替代料号进行并排对比：
ADM202E
✅ 直接替换📋 参考替代料（不在目录中）
ADM202E/CP
✅ 直接替换📋 参考替代料（不在目录中）
ADM202JNZ
✅ 直接替换📋 参考替代料（不在目录中）
ADM202JN 规格参数
| Product Type | Dual RS-232 line driver/receiver transceiver |
| Number of Drivers | 2 |
| Number of Receivers | 2 |
| Transmission Rate | 120 kB/s |
| 电源电压 | Single 5 V |
| Charge-Pump Capacitor | 0.1 µF |
| RS-232 Output Levels | ±10 V |
| RS-232 Standard Compatibility | TIA/EIA-232-E and V.28 |
| On-Board DC-DC Converter | Yes |
| Duplex Mode | Full duplex |
| 封装 | 16-PDIP |
| 安装类型 | Through hole |
| 工作温度 | 0 °C to 70 °C |
| Supply Range | 4.5 V to 5.5 V |
| Driver Slew Rate | Fast driver slew rates; numerical value not provided |
| ESD Protection | 15 kV mentioned in a public product-document snippet; test conditions not provided |
ADM202JN 16-pdip 引脚配置指南
ADM202JN（16-pdip 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： ADM202JN.
请参阅 数据手册 以查看完整引脚配置。
典型应用
ADM202JN 适用于 6 应用s: Industrial RS-232 Service Console, Data-Acquisition Equipment Interface, Legacy Peripheral Connection, Embedded Test and Measurement, Communication Adapter, Embedded Control Console.
Industrial RS-232 Service Console
The ADM202JN fits industrial service and configuration consoles that require two legacy RS-232 channels beside a controller. Its two drivers and two receivers consolidate the interface into one 16-PDIP device, while the 120 kB/s rate is suitable for command consoles, diagnostic tools, and equipment-control links. The single 5 V supply simplifies the interface rail, and the internal charge pump generates the required bipolar drive levels without a separate negative supply. Designers should still verify the UART logic levels, connector pinout, ground reference, and cable protection because the verified excerpts do not provide every timing or threshold value.
推荐
Data-Acquisition Equipment Interface
The ADM202JN is suitable for connecting a data-acquisition instrument or controller to an RS-232 host when the system needs two bidirectional channels and a 120 kB/s link. The dual-channel arrangement can reduce the number of separate interface components while retaining standard RS-232 line signaling. Its 0.1 µF charge-pump capacitors support a compact 5 V interface section, but the PCB must follow the datasheet capacitor placement and maintain adequate return-current paths. For instrumentation, verify grounding, isolation requirements, and transient protection before connecting external cables.
推荐
Legacy Peripheral Connection
The ADM202JN can bridge a modern controller to a legacy peripheral that exposes an RS-232 port rather than a differential bus. The two drivers and two receivers support full-duplex communication, making the part appropriate for command and response paths in printers, test adapters, and older industrial peripherals. Its 120 kB/s rate exceeds the throughput needed by many configuration protocols, while the single 5 V supply keeps the interface compatible with conventional digital logic sections. Check the peripheral's connector wiring, voltage levels, and flow-control requirements before design-in.
推荐
Embedded Test and Measurement
The ADM202JN is appropriate for embedded test systems that communicate with external instruments over RS-232. A 120 kB/s rate and two channels provide enough bandwidth and connection flexibility for automated bench control, calibration, and status polling. Because the part is in a 16-PDIP package, it is particularly useful where a through-hole socket, prototyping board, or legacy test fixture is preferable to a fine-pitch surface-mount footprint. The design should include verified logic-level compatibility, connector pin numbering, cable shielding, and protection against electrostatic discharge on exposed RS-232 lines.
推荐
Communication Adapter
The ADM202JN can be used in a communication adapter that translates a host UART's logic signals into RS-232 line levels and receives the remote response. The integrated charge pump and dual-channel structure make it useful in compact adapters supporting two RS-232 ports from a 5 V supply. The verified data confirms ±10 V generated output levels and 120 kB/s operation, but does not establish modern ESD, isolation, or cable-length performance. Confirm the complete datasheet limits and validate the adapter with the intended connector and cable before production.
推荐
Embedded Control Console
The ADM202JN is suitable for embedded control consoles that need a deterministic RS-232 service port on a controller board. Its 120 kB/s capability supports configuration, logging, and supervisory commands while the two-channel architecture can handle separate transmit and receive functions. The single 5 V supply is convenient for systems already operating from a 5 V logic rail, and the through-hole package simplifies legacy through-hole assembly or socket-based maintenance. Because the exact pin names and logic thresholds are not in the verified excerpts, the board schematic must be checked against the manufacturer datasheet before fabrication.
推荐
推荐产品汇总
工程参考数据： ADM202JN ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ADM202E | ADM202E/CP | ADM202JNZ | MAX202IN | MAX202ID |
|---|---|---|---|---|---|---|
| Product Type | 2-channel RS-232 driver/receiver transceiver | ADM202 family RS-232 transceiver | ADM202 family RS-232 transceiver | ADM202 family RS-232 transceiver | Related RS-232 transceiver | Related RS-232 transceiver |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Maxim Integrated | Maxim Integrated |
| Package | 16-PDIP | 16-PDIP family package | 16-PDIP family package | 16-PDIP | 16-PDIP | 16-PDIP |
关键差异点
- Two-channel transceiver in one 16-PDIP package （对比 MAX202IN)
- 0.1 µF charge-pump capacitors （对比 MAX202ID)
- 120 kB/s specified transmission rate （对比 ADM202E)
- Single 5 V implementation with generated bipolar levels （对比 ADM202JNZ)
设计说明
The ADM202JN uses a single 5 V supply, and the verified data specifies a 4.5 V to 5.5 V range. Place the supply bypass capacitor close to the device power pin according to the manufacturer layout guidance, and route the return current directly to the device ground. The internal charge pump generates bipolar drive voltage, so the design should not assume a separate negative rail is available. Confirm the exact capacitor pins and stability layout against the datasheet before fabrication.
Keep the charge-pump capacitor loop compact because the verified ADM202 data identifies 0.1 µF external capacitors. Short connections reduce switching-loop area and help maintain predictable driver behavior. Route the logic-side traces away from the RS-232 connector and cable-side nets, maintain a continuous ground reference, and place any protection components where they can clamp external transients without disturbing the transceiver. The supplied data does not specify the recommended PCB stack-up or trace widths.
Do not substitute a functionally similar RS-232 IC solely because it also uses a 5 V supply. Verify all 16 pins, logic thresholds, receiver hysteresis, driver timing, temperature grade, and charge-pump capacitor values. The public cross-reference material suggests relationships among ADM202E and MAX202E/MAX232E sockets, but it does not establish that every MAX202 or ADM203 variant is a drop-in replacement. Treat the alternatives list as candidates for engineering review until the exact datasheets are checked.
RS-232 is a single-ended bipolar interface, so cable routing, grounding, and connector shields are important in industrial environments. Keep the transceiver and charge-pump section away from high-current switching paths, provide a low-impedance ground connection, and verify external transient protection at the connector. The verified product description states TIA/EIA-232-E and V.28 compatibility, but it does not provide a complete EMC test report or cable-length guarantee. Validate the final assembly in the intended enclosure.
合规信息
The supplied excerpts do not explicitly state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. Obtain current compliance documentation from Analog Devices or an authorized distributor before making regulatory claims.
