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Data Sheet
5.0 kV RMS Dual Channel Digital Isolators ADuM220N/ADuM221N/ADuM225N/ADuM226N
FEATURES
High common-mode transient immunity: 100 kV/μs High robustness to radiated and conducted noise Low propagation delay: 13 ns maximum for 5 V operation,
15 ns maximum for 1.8 V operation 150 Mbps maximum data rate Safety and regulatory approvals (pending)
UL recognition: 5000 V rms for 1 minute per UL 1577 CSA Component Acceptance Notice 5A VDE certificate of conformity
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 VIORM = 849 V peak 10,000 V peak surge/impulse voltage rating CQC Certification per GB4943.1-2011 Low dynamic power consumption 1.8 V to 5 V level translation High temperature operation: 125°C maximum Fail-safe high or low options 8-lead/16-lead, RoHS compliant SOIC packages Qualified for automotive applications
APPLICATIONS
General-purpose multichannel isolation Industrial field bus isolation Automotive systems
GENERAL DESCRIPTION
The ADuM220N/ADuM221N/ADuM225N/ADuM226N1 are dual-channel digital isolators based on Analog Devices, Inc., iCoupler® technology. Combining high speed, complementary metal-oxide semiconductor (CMOS) and monolithic air core transformer technology, these isolation components provide outstanding performance characteristics superior to alternatives such as optocoupler devices and other integrated couplers. The maximum propagation delay is 13 ns with a pulse width distortion (PWD) of less than 3 ns at 5 V operation. Channel matching is tight at 3.0 ns maximum.
The ADuM220N/ADuM221N/ADuM225N/ADuM226N data channels are independent and are available in a variety of configurations with a withstand voltage rating of 5.0 kV rms (see the Ordering Guide). The devices operate with the supply voltage on either side ranging from 1.8 V to 5 V, providing compatibility with lower voltage systems as well as enabling voltage translation functionality across the isolation barrier. Unlike other optocoupler alternatives, dc correctness is ensured in the absence of input logic transitions. Two different fail-safe options are available, in which
FUNCTIONAL BLOCK DIAGRAMS
GND1 1 NIC 2
VDD1 3 VIA 4 VIB 5 NIC 6
GND1 7 NIC 8
ENCODE ENCODE
ADuM220N
DECODE DECODE
Figure 1.
16 GND2 15 NIC 14 VDD2 13 VOA 12 VOB 11 NIC 10 NIC 9 GND2
14116-001
GND1 1 NIC 2
VDD1 3 VOA 4 VIB 5 NIC 6 GND1 7 NIC 8
DECODE ENCODE
ADuM221N
ENCODE DECODE
Figure 2.
16 GND2 15 NIC 14 VDD2 13 VIA 12 VOB 11 NIC 10 NIC 9 GND2
14116-002
VDD1 1 VIA 2 VIB 3
GND1 4
ENCODE ENCODE
ADuM225N
DECODE DECODE
Figure 3.
8 VDD2 7 VOA 6 VOB 5 GND2
14116-003
VDD1 1
ADuM226N
8 VDD2
VOA 2
DECODE
ENCODE
7 VIA
VIB 3
ENCODE
DECODE
6 VOB
14116-004
GND1 4
5 GND2
Figure 4.
the outputs transition to a predetermined state when the input power supply is not applied or the inputs are disabled. The ADuM220N0 is pin compatible with the ADuM2210 RW-16 package. The ADuM220N1 is pin compatible with the ADuM2200 RW-16 package. The ADuM221N0 is pin compatible with the ADuM2211 RW-16.