ایزولاتور ایزولاتور دیجیتال

Product Attributes

Introduction

The ADuM340E/ADuM341E/ADuM342E1 are quad-channel digital isolators based on ADI's iCoupler technology. These isolation components combine high-speed CMOS and back-to-back monolithic air core transformer technology, delivering excellent performance characteristics that meet CISPR 32/EN 55032 Class B limits at 5 Mbps. At 5 V supply voltage, maximum propagation delay is 10 ns with pulse width distortion less than 3 ns. Channel matching is tight, with a maximum of 3.0 ns. The ADuM340E/ADuM341E/ADuM342E data channels are independent of each other, available in multiple configurations, with a withstand voltage rating of 5.7 kV rms. The supply voltage range on both sides of the device is 2.25 V to 5.5 V, enabling compatibility with low-voltage systems and voltage translation across the isolation barrier. Two different failsafe options are available, where the output switches to a predetermined state when input power is not applied.

Features

• High common-mode transient immunity: 180 kV/µs typical
• High robustness against radiated and conducted noise
• Low propagation delay
• 6.2 ns typical (10 ns maximum) at 5 V operation
• Low dynamic power consumption, less than 1.65 mA per channel at 1 Mbps
• 2.25 V to 5.5 V level translation
• 150 Mbps maximum guaranteed data rate at 5 V operation
• High-temperature operation: 125°C
• Safety and regulatory certifications
• DIN EN IEC 60747-17 (VDE 0884-17)
• VIORM = 1173 V peak, SOIC (RW-16)
• VIORM = 566 V peak, QSOP (RQ-16)
• UL 1577
• VISO = 5700 V rms for 1 minute, SOIC (RW-16)
• VISO = 3000 V rms for 1 minute, QSOP (RQ-16)
• IEC/EN/CSA 62368-1
• IEC/CSA 60601-1
• IEC/CSA 61010-1
• CQC GB4943.1
• ±8 kV IEC 61000-4-2 ESD protection across isolation barrier
• ±5 kV HBM ESD protection on input/output pins
• Fail-safe high (E1) or low (E0) options
• 16-pin, RoHS-compliant SOIC and QSOP packages
• Backward compatible with:
• ADuM1400/ADuM1401/ADuM1402
• ADuM2400/ADuM2401/ADuM2402
• ADuM140E/ADuM141E/ADuM142E
• ADuM240E/ADuM241E/ADuM242E
• AEC-Q100 qualified for automotive applications

Applications

• SPI data converter isolation
• RS-485 and CAN FD industrial fieldbus isolation
• PWM controller signal isolation
• General-purpose multi-channel isolation