Products > Integrated Circuits (ICs) > Amplifier ICs > ACNT-H79B-000E
ACNT-H79B-000E 8-SOIC (0.535, 13.60mm Width)
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Manufacturer :
Broadcom Corporation
Package/Case :
8-SOIC (0.535, 13.60mm Width)
Product Categories :
Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
RoHs Status:
Lead free / RoHS Compliant

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ACNT-H79B-000E Product Details

The Broadcom ACNT-H79B/H79A/H790 are high-linearity optically isolated amplifier devices in 15mm wide creepage and 14.2mm clearance, designed for current and voltage sensing applications in systems such as motor drives and renewable energy inverters. In a typical motor drive implementation, the ACNT-H79B/H79A/H790 can be used to sense a voltage drop across a sense resistor. A differential output voltage that is proportional to the current across the resistor is created on the other side of the optical isolation barrier.For general applications, the ACNT-H79A (±1% gain tolerance) and the ACNT-H790 (±3% gain tolerance) are recommended.For high precision applications, the ACNT-H79B (±0.5% gain tolerance) can be used.The ACNT-H79B/H79A/H790 offers wide creepage and clearance witha high common-mode transient immunity of 15kV/μs. These features allows the ACNT-H79B/H79A/H790 to provide the precision and stability needed to accurately monitor motor current in high noise motor control environments, providing for smoother control (less “torque ripple”) in various types of motor control applications.The ACNT-H79B/H79A/H790 operates from a single 5 V supply and provides excellent linearity and dynamic performance of 60dB SNR. With 200 kHz bandwidth, 1.6 μs fast response time, the ACNT-H79B/H79A/H790 capturestransients in short circuit and overload conditions.


  • ±0.5% High Gain Accuracy (ACNT-H79B)
  • -50 ppm/°C Low Gain Drift
  • 0.6 mV Input Offset Voltage
  • 0.05% Excellent Linearity
  • 60dB SNR
  • 200kHz Wide Bandwidth (typ)
  • Operating Temperature Range: -40 °C to +105 °C
  • Advanced Sigma-Delta A/D Converter Technology
  • 0.5mm Distance Through Insulation (DTI)
  • 15 kV/µs Common-Mode Transient Immunity
  • 15mmStretched SO-8 Package
  • Safety and Regulatory Approvals:
-IEC/EN/DIN EN 60747-5-5: 2,262 VPEAK Working Insulation Voltage-UL 1577: 7,500 VRMS perMinute Double Protection Rating-CSA: Component Acceptance Notice #5


  • Current Sensing & Voltage Sensing in AC and Servo Motor Drive
  • Mid-Voltage Drives
  • Solar Inverters, Wind Turbine Inverter
  • Industrial Process Control
  • General Purpose Analog Signal Isolation
  • Hall Effect Current Transducer Replacement

Technical Parameters

Amplifier Type Isolation Current Output / Channel 11mA
Number of Circuits 1 Voltage Supply, Single/Dual (??) 3V ~ 5.5V
Output Type Differential Operating Temperature -40??C ~ 105??C (TA)
3db Bandwidth 200kHz Mounting Type Surface Mount
Current Input Bias 100nA Package / Case 8-SOIC (0.535, 13.60mm Width)
Voltage Input Offset 200??V Supplier Device Package 8-SO Stretched
Current Supply 19mA

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