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AD261BND-5 Datasheet PDF - Analog Devices
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GENERAL DESCRIPTION The AD261 is designed to isolate five digital control signals to/from a microcontroller and its related field I/O components. Six models allow all I/O combinations from five input lines to five output lines, including combinations in between. Every AD261 effectively replaces up to five opto-isolators. Each line of the AD261 has a bandwidth of 20 MHz (min) with a propagation delay of only 14 ns, which allows for extremely fast data transmission. Output waveform symmetry is maintained to within ±1 ns of the input so the AD261 can be used to accurately isolate time-based PWM signals. All field or system output pins of the AD261 can be set to a high resistance three-state level by use of the two enable pins. A field output three-stated offers a convenient method of presetting logic levels at power-up by use of pull-up/down resistors. System side outputs being three-stated allows for easy multiplexing of multiple AD261s. FEATURES Isolation Test Voltage: To 3.5 kV rms Five Isolated Logic Lines: Available in Six I/O Configurations Logic Signal Bandwidth: 20 MHz (min) CMV Transient Immunity: 10 kV/ms min Waveform Edge Transmission Symmetry: 61 ns Field and System Output Enable/Three-State Functions Performance Rated Over –258C to +858C UL1950, IEC950, EN60950 Certification (VDE, CE, Pending) APPLICATIONS PLC/DCS Analog Input and Output Cards Communications Bus Isolation General Data Acquisition Applications IGBT Motor Drive Controls High Speed Digital I/O Ports |
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