Description

The ADuM260N/ADuM261N/ADuM262N/ADuM263N1 are6-channel digital isolators based on Analog Devices, Inc., iCoupler®technology. Combining high speed, complementary metal-oxidesemiconductor (CMOS) and monolithic air core transformertechnology, these isolation components provide outstandingperformance characteristics superior to alternatives such asoptocoupler devices and other integrated couplers. The maximumpropagation delay is 13 ns with a pulse width distortion ofless than 4.5 ns at 5 V operation. Channel to channel matchingof propagation delay is tight at 4.0 ns maximum.The ADuM260N/ADuM261N/ADuM262N/ADuM263N datachannels are independent and are available in a variety ofconfigurations with a withstand voltage rating of 5.0 kV rms(see the Ordering Guide in the data sheet). The devices operate with the supplyvoltage on either side ranging from 1.7 V to 5.5 V, providingcompatibility with lower voltage systems as well as enablingvoltage translation functionality across the isolation barrier.Unlike other optocoupler alternatives, dc correctness is ensuredin the absence of input logic transitions. Two different fail-safeoptions are available by which the outputs transition to a predeterminedstate when the input power supply is not applied. APPLICATIONS General-purpose multichannel isolation Serial peripheral interface (SPI)/data converter isolation Industrial field bus isolation 1 Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.