Products > Integrated Circuits (ICs) > Amplifier ICs > ACNT-H87A-000E
ACNT-H87A-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-H87A-000E Product Details

The ACNT-H87B/H87A/H870 voltage sensors are optical isolation amplifiers designed specifically for voltage sensing. Its 2V input range and high 1GΩ input impedance, makeit well suited for isolated voltage sensing requirements in electronic power converterapplications including motor drives and renewable energy systems. In a typical voltage sensing implementation, a resistive voltage divider is used to scale the DC-link voltage to suit the input range of the voltage sensor. A differential output voltage that is proportional to the input voltage is created on the other side of the optical isolation barrier.For general applications, the ACNT-H87A (±1% gain tolerance) and the ACNT-H870 (±3% gain tolerance) are recommended. For high precision requirements, the ACNT-H87B (±0.5% gain tolerance) can be used. The ACNT-H87B/H87A/H870optical isolation amplifiers family operates from a single 5V supply and provides excellent linearity. An active-high shutdown pin is available which reduces the Idd1 current to only 15 uA, making them suitable for battery-powered and other power-sensitive applications.The high common-mode transient immunity (15kV/us) of the ACNT-H87B/H87A/H870 provides the precision and stability needed to accurately monitor DC-link voltage in high-noise environments. Combined with superior optical coupling technology, the ACNT-H87B/H87A/H870 implements sigma-delta modulation, chopper stabilized amplifiers, and differential outputs to provide unequaled isolation-mode noise rejection, low offset, high gain accuracy and stability. This performance is delivered in a compact, auto-insertable 15 mm Stretched SO-8 (SSO-8) package that meets worldwide regulatory safety standards.


  • Unity gain 1V/V, ±0.5% high gain accuracy (ACNT-H87B)
  • 1-GΩinput impedence
  • 0 to 2V nominal input range
  • –35 ppm/°C low gain drift
  • 21 μV /°C offset voltage drift
  • 0.1% non-linearity maximum
  • Active-high shutdown pin
  • 100-kHz wide bandwidth
  • 3-V to 5.5-V wide supply range for output side
  • –40°C to +110°C operating temperature range
  • 15 kV/μs common-mode transient immunity
  • Compact, auto-insertable 15-mm Stretched SO-8 package
  • Safety and regulatory approvals:
    • IEC/EN/DIN EN 60747-5-5: 2262Vpeak working insulation voltage
    • UL 1577: 7500Vrms/1min double protection rating
    • CSA: Component Acceptance Notice #5


  • Isolated voltage sensing in AC and servo motor drives
  • Isolated DC-bus voltage sensing in solar inverters, wind turbine inverters
  • Isolated sensor interfaces
  • Signal isolation in data acquisition systems
  • General-purpose voltage isolation

Technical Parameters

Amplifier Type Isolation Current Output / Channel 30mA
Number of Circuits 1 Voltage Supply, Single/Dual (??) 3V ~ 5.5V
Output Type Differential Operating Temperature -40??C ~ 105??C
3db Bandwidth 100kHz Mounting Type Surface Mount
Current Input Bias 1.5nA Package / Case 8-SOIC (0.535, 13.60mm Width)
Voltage Input Offset 9.9mV Supplier Device Package 8-SO Stretched
Current Supply 230mA

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