ADUM5240 Datasheet | Analog Devices

FEATURES Integrated isolated DC/DC converter Regulated 5V/10 m A output Dual dc-to-10 Mbps (NRZ) signal isolation channels Narrow body SOIC 8-lead package High temperature operation: 105°C Precise timing characteristics: 3 ns maximum pulse-width distortion 3 ns maximum channel-to-channel matching 70 ns maximum propagation delay High mon-mode transient immunity: > 25 k V/μs Safety and regulatory approvals (pending) UL recognition 2500 V rms for 1 minute per UL 1577 CSA ponent acceptance notice #5A VDE certificate of conformity DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01 DIN EN 60950 (VDE 0805): 2001-12; DIN EN 60950: 2000 VIORM = 425 V peak Dual-Channel Isolators with Integrated DC/DC Converter, 50 m W ADu M5240/ADu M5241/ADu M5242 GENERAL DESCRIPTION The ADu M524x1 are dual-channel digital isolators having an integrated DC/DC converter. Based on Analog Devices’ i Coupler® technology, the DC/DC converter provides up to 50 m W of regulated, isolated power at +5V. This eliminates the need for a separate isolated DC/DC converter in low-power isolated designs. Analog Devices’ chip-scale transformer i Coupler® technology is used both for the isolation of the logic signals as well as for the DC/DC converter. The result is a small form-factor total-isolation solution. ADu M524x units may be used in bination or with other i Coupler products to achieve greater channel counts. The ADu M524x isolators provide two independent isolation channels in a variety of channel configurations and data rates (see Ordering Guide) operating off a 5V input supply. Protected by U.S. Patents 5,952,849 6,873,065 and 7,075,329 Other patents pending. FUNCTIONAL BLOCK DIAGRAM VDD 1 VIA 2 VIB 3 GND 4 osc. ENCODE ENCODE rect. DECODE DECODE 8 VISO 7 VOA 6 VOB VDD 1 VOA 2 VIB 3 4 osc. DECODE ENCODE rect. ENCODE DECODE 8 VISO 7 VIA 6 VOB VDD 1 VOA 2 VOB 3 4 osc. DECODE DECODE rect. ENCODE ENCODE 8 VISO 7 V IA 6 VIB 5 GNDISO GND 5 GNDISO GND 5 GNDISO Figure 1. ADu M5240 Functional Block...