5.7 kV/3.0 kV rms Quad Digital Isolators

The ADuM340E/ADuM341E/ADuM342E are quad-channel digital isolators based on Analog Devices, Inc., iCoupler® technology. Combining high speed, complementary metal-oxide semiconductor (CMOS) and back-to-back monolithic air core transformer technology, these isolation components provide outstanding performance characteristics and meet CISPR 32/EN 55032 Class B limits at 5 Mbps. The maximum propagation delay is 10 ns with a pulse width distortion of less than 3 ns at 5 V operation. Channel matching is tight at 3.0 ns maximum.

The ADuM340E/ADuM341E/ADuM342E data channels are independent and are available in a variety of configurations with a withstand voltage rating of 5.7 kV rms (see Figure 26 in the data sheet). The devices operate with the supply voltage on either side ranging from 2.25 V to 5.5 V, providing compatibility with lower voltage systems as well as enabling voltage translation functionality across the isolation barrier.

Two different fail-safe options are available, by which the outputs transition to a predetermined state when the input power supply is not applied.

APPLICATIONS

* Serial peripheral interface (SPI) data converter isolation

* RS-485 and controller area network with flexible data rate (CAN FD) industrial field bus isolation

* PWM controller signal isolation

* General-purpose multichannel isolation

* High common-mode transient immunity: 180 kV/µs typical

* High robustness to radiated and conducted noise

* Low propagation delay

* 6.2 ns typical (10 ns maximum) for 5 V operation

* Low dynamic power consumption, <1.65 mA/ch at 1 Mbps

* 2.25 V to 5.5 V level translation

* 150 Mbps maximum guaranteed data rate for 5 V operation

* High temperature operation: 125°C

* Safety and regulatory approvals

* UL recognition: 5700 V rms for 1 minute per UL 1577

* VDE certificate of conformity (pending)

* DIN V VDE V 0884-11 (VDE V 0884-11):2017-01

* VIORM = 1173 V peak

* 10,000 V peak reinforced surge isolation voltage

* CSA certification per IEC 62368-1 and IEC 61010-1 (pending)

* TÜV Süd certification per EN 62368-1 (pending)

* CQC certification per GB4943.1-2022 (pending)