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ADM3251EARWZ-REEL
+BOMDGTL ISO 2.5KV 2CH RS232 20-SOIC
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ManufacturerAnalog Devices Inc.
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Mfr. Part #ADM3251EARWZ-REEL
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Datasheet ADM3251EARWZ-REEL DataSheet
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In Stock18043
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Specifications
| Attribute | Value |
| Series | IsoPower®, iCoupler® |
| Part Status | Active |
| Technology | Magnetic Coupling |
| Type | RS232 |
| Isolated Power | Yes |
| Number of Channels | 2 |
| Inputs - Side 1 / Side 2 | 1/1 |
| Channel Type | Unidirectional |
| Voltage - Isolation | 2500Vrms |
| Common Mode Transient Immunity (Min) | 25kV/µs |
| Data Rate | 460Kbps |
| Propagation Delay tp LH / tp HL (Max) | 135ns, 190ns |
| Rise / Fall Time (Typ) | 2.3ns, 2.3ns |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 20-SOIC |
| Base Product Number | ADM3251 |
Overview
Description
Key features include a 2.5 kV RMS isolation rating, ESD protection up to ±8 kV on RS-232 I/O pins, and low power consumption. The device operates over a broad temperature range, making it suitable for harsh environments. It is packaged in a space-saving wide-body 20-lead SOIC package, which is ideal for applications requiring compact design such as industrial automation, telecommunications, and data communication systems.
The ADM3251EARWZ-REEL simplifies design by providing both the data communication and power isolation in a single package, reducing the need for additional components and improving system reliability and performance.
Equivalent
1. MAX3243E: A similar transceiver from Maxim Integrated, offering high performance and integrated ESD protection.
2. ISO7320: An isolated RS-232 transceiver from Texas Instruments.
3. SP3223E: From MaxLinear, offers similar functionality with ESD protection.
It's important to verify compatibility in terms of pin configuration, isolation, and electrical characteristics for specific applications.
Features
The chip provides ESD protection exceeding ±15kV for robust performance in harsh environments. With its automatic power-down feature, it minimizes power consumption when inactive. The ADM3251EARWZ-REEL supports full-duplex communication, ensuring reliable data transfer. It is housed in a compact 20-lead wide-body SOIC package, making it suitable for space-constrained applications. These features make it ideal for industrial, medical, and automation applications requiring reliable and isolated RS-232 communication.
Pinout
Key functions include:
- Providing electrical isolation of 2.5 kV rms between the logic and bus lines.
- Facilitating data communication in industrial and instrumentation applications where isolation is crucial.
- Offering protection against electrical noise and interference, ensuring reliable data transfer.
The ADM3251EARWZ-REEL is commonly used in applications requiring isolation between different sections of a system, such as between a microcontroller and an RS-232 device, which might be connected to equipment operating at different ground potentials.