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ADUM1411BRWZ

4-ch iCoupler digital isolator, 10Mbps, 2.5kVrms, 3/5V level shift, SOIC-16W, prog default

5870

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Pieza del fabricante：

ADUM1411BRWZ

Paquete：

SOIC-16 Wide (10.50 x 7.60 x 2.35 mm)

Marca：
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Compromiso de calidad
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Descripción

Productos

The ADUM1411BRWZ from Analog Devices is a quad-channel digital isolator based on iCoupler technology, providing 2500Vrms isolation at up to 10Mbps data rate in a 16-lead wide-body SOIC package. It features 3V/5V level translation, programmable default output, and >25kV/us common-mode transient immunity.

Especificaciones

Canales 4 (3 forward, 1 reverse)
Velocidad de datos 10 Mbps (BRWZ version)
Tensión de aislamiento 2500 Vrms (UL 1577)
VIORM 560 V peak (VDE)
Common-Mode Transient Immunity >25 kV/us
Tensión de alimentación 2,7 V a 5,5 V (ambos lados)
Retardo de propagación 40 ns typical (5V)
Distorsión de la anchura de impulsos 5 ns max
Supply Current (quiescent) 1.9 mA max per side
Temperatura de funcionamiento -40°C to +105°C
Paquete 16-lead SOIC Wide

Características

  • Quad-channel iCoupler digital isolator at 10Mbps with 2500Vrms galvanic isolation
  • Bidirectional communication and 3V/5V level translation across isolation barrier
  • Programmable default output state for safe power-up/down behavior
  • Patented refresh feature ensures DC correctness without input transitions
  • 1/6 to 1/10 the power consumption of optocouplers at equivalent data rates

Aplicaciones

  • Interfaz SPI y aislamiento del convertidor de datos
  • RS-232/RS-422/RS-485 transceiver isolation
  • Industrial field bus and general-purpose multichannel isolation

The ADUM1411BRWZ from Analog Devices is a quad-channel digital isolator based on iCoupler technology combining high-speed CMOS with monolithic air-core transformer technology. The ADuM1411 configuration provides three forward channels and one reverse channel, supporting bidirectional communication across the isolation barrier. The BRWZ version supports data rates up to 10Mbps with propagation delay of 40ns typical and pulse width distortion of only 5ns. Both sides operate from 2.7V to 5.5V, enabling voltage level translation. A programmable default output pin allows the user to define the output logic state when input power is absent. The patented refresh feature ensures DC correctness even without input logic transitions. The device consumes 1/6 to 1/10 the power of optocouplers at comparable data rates.

The ADUM1411BRWZ uses Analog Devices iCoupler technology to transfer digital signals across a galvanic isolation barrier. (1) Transformer Isolation: Microscale air-core transformers fabricated in planar thin-film technology couple high-frequency carrier signals between the input and output sides. The 2500Vrms isolation is achieved by the physical separation and insulation between transformer windings. (2) Signal Encoding: Input logic transitions are encoded into short pulses that drive the primary winding of the isolation transformer. The secondary winding receives the pulses and decodes them to reproduce the input signal on the isolated side. (3) Refresh: In the absence of input transitions, a periodic refresh pulse is transmitted every 2us to maintain the correct output state, ensuring DC correctness. (4) Default Output: The CTRL1 and CTRL2 pins define the output state when input power is lost, providing a known safe state during power-up and power-down. (5) Level Translation: Since VDD1 and VDD2 can be independently set from 2.7V to 5.5V, the device performs voltage level translation across the isolation barrier.

Pin Nombre Función
1 VDD1 Side 1 supply (2.7-5.5V)
2 GND1 Side 1 ground
3 VIA Channel A input (side 1)
4 VIB Channel B input (side 1)
5 VIC Channel C input (side 1)
6 VOD Channel D output (side 1)
7 CTRL1 Default output control 1
8 GND1 Side 1 ground
9 GND2 Side 2 ground
10 CTRL2 Default output control 2
11 VID Channel D input (side 2)
12 VOC Channel C output (side 2)
13 VOB Channel B output (side 2)
14 VOA Channel A output (side 2)
15 GND2 Side 2 ground
16 VDD2 Side 2 supply (2.7-5.5V)
  • SPI data converter isolation with bidirectional communication at 10Mbps
  • RS-232/RS-485 transceiver isolation in industrial environments
  • Industrial field bus isolation with 2.5kVrms and >25kV/us CMTI
Fabricante Número de pieza Paquete Notas
ADI ADUM1411ARWZ SOIC-16W 1Mbps version, lower cost
TI ISO7741FDWR SOIC-16W 100Mbps, 5kVrms
Laboratorios Silicon Si8641BC-B-IS SOIC-16W 150Mbps, 5kVrms
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