ADM207ARZ - 5/3 RS-232 Transceiver, 200 kbps | Analog Devices
MPN: ADM207ARZ ✓ Hoạt độngADM207ARZ Tóm tắt
An RS-232 transceiver is an interface IC that converts logic-level digital signals into RS-232 line levels and converts received line levels back into digital logic. This device belongs to the line-driver and receiver category, which forms part of the broader interface IC and semiconductor hierarchy. Unlike a standalone RS-232 driver or receiver, the ADM207ARZ combines both functions and its regulated charge-pump circuitry on one integrated circuit.
The ADM207ARZ provides five transmit channels and three receive channels, allowing three bidirectional ports plus two transmit-only outputs. Its maximum signaling rate of 200 kbps supports common asynchronous serial data links while requiring only a 0.1 µF external capacitor for its on-chip voltage converters. The 5 V supply architecture simplifies system design because designers do not need a separate ±12 V source.
Technically, the integrated DC-to-DC converters generate positive and negative RS-232 voltage levels from the single low-voltage supply. The receivers provide noise immunity for the ±3 V logic used by many microcontrollers and programmable controllers. Although the ADM207 lacks the low-power shutdown feature associated with some related ADM2xx devices, it remains suitable for multiport industrial, instrumentation, test-equipment, and embedded-control interfaces where several RS-232 channels are required.
Typical applications include data acquisition systems, industrial controllers, laboratory instruments, point-of-sale equipment, barcode scanners, and embedded serial-port interfaces. A system designer can connect its logic-side transmitter inputs and receiver outputs directly to a suitable microcontroller UART, while the RS-232-side pins connect through the external charge-pump capacitors and protection network. The wide SOIC package is easy to assemble and available in production packaging.
When laying out the board, place the 0.1 µF charge-pump capacitors close to their specified pins and route the high-voltage RS-232 outputs away from sensitive logic. Decoupling and external protection must follow the manufacturer application guidance because long cables expose the interface to electrostatic discharge and surge events. The supply must remain within the verified 4.5 V to 5.5 V range.
This page consolidates verified manufacturer and distributor information, package-specific sourcing details, application guidance, and a transparent assessment of available drop-in alternatives. It also separates documented capabilities from unavailable electrical details instead of estimating missing specifications.
Bộ thay thế dễ dàng lắp đặt cho ADM207ARZ — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ADM207ARZ (cùng hình factor và footprint) — khác nhau ở Output Swing, Package, Supply Voltage.
MAX207IDWR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADM207ARZ Thông số kỹ thuật
| Product Type | RS-232 transceiver |
| Number of Drivers | 5 |
| Number of Receivers | 3 |
| Điện áp cung cấp | 4.5 V to 5.5 V |
| Nominal Supply Voltage | 5 V |
| Maximum Data Rate | 200 kbps |
| Charge-Pump Capacitor | 0.1 µF |
| Protocol | RS-232 |
| Compliance Interface | EIA-232-E and V.28 |
| Onboard Voltage Converter | Yes, DC-to-DC converter |
| Output Swing | ±9 V |
| Hộp | 24-pin SOIC W |
| Kiểu lắp đặt | Surface Mount |
| Packaging | Tube |
| Số lượng chân | 24 |
Hướng dẫn cấu hình chân ADM207ARZ 24-pin soic w
Cấu hình chân cho ADM207ARZ (24-pin soic w gói). Số thứ tự chân, chức năng và sơ đồ kết nối được xác định trong tài liệu thông số kỹ thuật của nhà sản xuất. Tham khảo nó để biết footprint và hướng dẫn hàn chính xác.
Không có dữ liệu chân cụ thể sẵn có cho ADM207ARZ.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
ADM207ARZ phù hợp cho 6 Áp dụngs: Industrial Data Acquisition, Embedded Serial Port Expansion, Laboratory Test Instrumentation, Point-of-Sale and Retail Equipment, Barcode and Identification Systems, Instrumentation and Process Monitoring.
Industrial Data Acquisition
The ADM207ARZ fits industrial acquisition systems that must connect several RS-232 instruments to one controller. Its five drivers and three receivers support three bidirectional ports plus two transmit-only channels, while the single 4.5 V to 5.5 V supply avoids a separate ±12 V rail. The 200 kbps rate is appropriate for many legacy instruments, although each RS-232 port requires isolation from the others according to the system specification. Designers should place the specified 0.1 µF charge-pump capacitors close to the device and verify the exact pin functions in the manufacturer datasheet before laying out the board.
Được đề xuất
Embedded Serial Port Expansion
The ADM207ARZ is useful when an embedded controller lacks enough UART channels for attached RS-232 equipment. Five drivers and three receivers can consolidate multiple serial connections without requiring a separate voltage-conversion IC for every port. Because the transceiver operates from 4.5 V to 5.5 V, it can share a 5 V rail with many embedded systems, while its onboard converters provide the required RS-232 levels. The design trade-off is that software must manage the shared channel direction, and the 200 kbps rating should be checked against every connected peripheral’s timing requirements.
Được đề xuất
Laboratory Test Instrumentation
The ADM207ARZ can connect a laboratory instrument to legacy RS-232 controllers, printers, or service interfaces. Three receive channels allow the instrument to accept commands or status from up to three compatible devices, while five transmit channels support outbound control and data paths. Its single 5 V architecture simplifies portable and benchtop power arrangements compared with a discrete ±12 V interface. A 200 kbps maximum rate is sufficient for many measurement-control protocols, but engineers should verify cable length, grounding, and whether the selected device requires hardware handshaking.
Được đề xuất
Point-of-Sale and Retail Equipment
Retail terminals can use ADM207ARZ to connect receipt printers, scanners, scales, and service equipment through RS-232. The five-driver and three-receiver arrangement accommodates several peripheral classes without using one full transceiver per connection. Since the device needs only a 4.5 V to 5.5 V supply and 0.1 µF charge-pump capacitors, it fits compact point-of-sale controller boards. The main design constraints are cable transients and ground potential differences: external protection and careful return-path routing remain important even though the IC generates the required RS-232 voltage levels.
Được đề xuất
Barcode and Identification Systems
ADM207ARZ can serve as the interface between an identification terminal and barcode scanners, magnetic readers, or label printers that use RS-232. Three receiver channels permit several input devices to report data to the terminal, and five driver channels provide command and response paths. The 200 kbps maximum rate is generally well above the throughput needed for ordinary barcode characters, making the interface practical for bursty transactions. Engineers should confirm the scanner’s logic levels and handshaking requirements, then provide suitable protection at externally accessible connectors.
Được đề xuất
Instrumentation and Process Monitoring
The ADM207ARZ is suitable for process-monitoring equipment that collects readings from older RS-232 sensors, controllers, or analyzers. The multi-driver and multi-receiver configuration supports centralized monitoring while keeping the host system powered from 5 V. Its onboard charge-pump converters eliminate the need for a separate ±12 V supply, and the EIA-232-E and V.28 interface target supports legacy compatibility. For industrial deployment, verify the exact temperature grade and isolation strategy, add connector-level surge protection, and route RS-232 outputs away from sensitive analog and measurement circuitry.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADM207ARZ — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MAX207IDWR |
|---|---|---|
| Brand | Analog Devices | Maxim Integrated |
| Package | 24-SOIC W | 24-SOIC |
| Device Type | Full RS-232 transceiver | 5/3 RS-232 transceiver |
| Number of Drivers | 5 | 5 |
| Number of Receivers | 3 | 3 |
| Onboard Voltage Conversion | Yes | Yes |
Bảo phân biệt quan trọng
- Five-driver and three-receiver integration (vsMAX202IDR)
- Documented 200 kbps maximum data rate (vsMAX207IDWR)
- Single 5 V supply with integrated conversion (vsMAX207IDWR)
Ghi chú thiết kế
Place the specified 0.1 µF charge-pump capacitors close to the ADM207ARZ pins and use the shortest practical traces permitted by the manufacturer layout guidance. These capacitors are part of the internal voltage-conversion circuit, so long or highly inductive traces can impair switching behavior. Keep the RS-232 driver outputs away from UART clock, reset, and sensitive analog traces, and provide a continuous ground reference beneath the interface area.
Do not assume that the 4.5 V to 5.5 V logic-side supply can also be used as an RS-232 line input. The ADM207ARZ receivers require proper RS-232 voltage levels and polarity, while the driver outputs generate bipolar levels through the onboard converters. Check every connector signal for TX-to-RX mapping, ground continuity, and the need for hardware handshaking before connecting external equipment.
Treat the externally accessible RS-232 connector as an industrial noise entry point. Use the protection network recommended by the manufacturer datasheet, provide a short return path for cable surge current, and avoid long unprotected traces beyond the board boundary. Separating high-swing driver outputs from precision measurement or clock circuitry reduces capacitive coupling and improves system reliability.
Thông tin tuân thủ
The supplied verified snippets do not explicitly state the target part's RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. No compliance status was inferred from generic distributor listings.
