3.3V/5V 100MBd High Speed CMOS Digital Isolator

Currently Viewing:

The ACML-74x0 series, from Broadcom, is a family of multi-channel high-speed CMOS digital isolators. Using magnetic coupling through a thick insulation barrier, these CMOS digital isolators help enable high-speed transmissions without compromise to isolation performance. These CMOS digital isolators consume a small amount of power, even at high data rates, yet provide transient immunity performance in compact surface-mount packages. These CMOS digital isolators are qualified to a maximum propagation delay of 36ns and a maximum pulse width distortion of 3ns. They are also capable of running at a 100MBd data rate.

Our CMOS digital isolator devices are available in 16-pin SOIC wide-body packages. They operate at dual 3.3V or 5V supply voltages. The DC and timing are specified over the temperature range of -40° C to +105° C. The quad-channel ACML-7420 CMOS digital isolator is configured as a bi-directional device, with two channels in one direction and two channels in the reverse direction. The ACML-7420, along with the ACML-7400 and ACML-7410 digital isolators, is also built using CMOS input buffers and CMOS output drivers helping to eliminate the need for both input limiters and output pull-up resistors. Refresh circuitry is built in to ensure DC-correctness.



  • Dual supply voltage compatible – 3.3 V & 5 V
  • Wide operating temperature range (-40° C to +105° C)
  • Support high speed data rate of at least 100 MBd
  • Lower power consumption – 15 mA per channel typical
  • Low propagation delay: 36 ns max
  • Low propagation delay skew
  • – Channel-to-channel: 4 ns max
    – Part-to-part: 8 ns max
  • Low pulse width distortion: 3 ns max
  • Safety and Regulatory Approvals
  • UL Recognised
    – 5600 VRMS for 1 min. per UL1577
    – CSA Component Acceptance Notice #5
    IEC 60950-1
    – Basic Insulation, 800 VRMS max. working voltage
    – Reinforced Insulation, 400 VRMS max. working voltage
    IEC 61010-1
    – Basic Insulation, 800 VRMS max. working voltage
    – Reinforced Insulation, 400 VRMS max. working voltage
    IEC 60601-1
    – 2 Means of Patient Protection, 250 VRMS max. working voltage
    – 2 Means of Operator Protectioin, 400 VRMS max. working voltage
  • High Common Mode Transient Immunity – 25 kV/µs min.
  • CMOS buffer input and output
  • DC correctness
  • Lead-free


  • Isolated data interfaces
  • Data acquisition
  • Digital oscilloscopes
  • Power meters and analyzers
  • High speed video transmission

Lifecycle Status


Upgrade Part

Substance Compliance

  • RoHS
    Pb & Pb-free options available
Specification Value
Lifecycle Active
Distrib. Inventory Yes
Bandwidth 50
Bandwidth UOM MHz
CMR (min.) (V/µs) 25000.0
Vcm (V) 1000.0
RoHS6 Compliant Pb & Pb-free options available
Package SO16
Product Type 100 MBd Digital Isolator
Prop Delay (tPHL) Max. (µs) 32.0
Prop Delay tPHL Uom ns
Prop Delay (tPLH) Max. (µs) 32.0
Prop Delay tPLH Uom ns
PWD (max.) 2
Pwd Max Uom ns
UL Insulation Rating Viso (VRMS) 5600.0
VDD2 (V) 3.3
Data Rate 100 Mb/s
Prop Delay (tPHL) Max. (µs) 32 ns
PWD (max.) 2 ns
Prop Delay (tPLH) Max. (µs) 32 ns
Application Note2 i
Data Sheet1 i
Options Data Sheet3 i
Product Change Notice (PCN)2 i
Reliability Data Sheet1 i
Selection Guide2 i
White Papers1 i
FAQs1 i
Promotional Material1 i


High Speed Digital Isolator