Broadcom

Broadcom   Isolation Amplifiers for Voltage Sensing

Broadcom

The ACPL-C87B/C87A/C870 voltage sensors from Broadcom are optical isolation amplifiers designed specifically for voltage sensing.

  • Advanced Sigma-Delta Modulation Technology
  • Unity Gain 1 V/V ±0.5% High Gain Accuracy (ACPL-C87B)
  • 1 GW Input Impedance
  • 0 to 2 V Nominal Input Range
  • -35 ppm/°C Low Gain Drift

Product Description

The ACPL-C87B/C87A/C870 voltage sensors from Broadcom are optical isolation amplifiers designed specifically for voltage sensing.
The 2 V input range and high 1 GΩ input impedance make these sensors well suited for isolated voltage sensing requirements in electronic power converters applications 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 ACPL-C87A (±1% gain tolerance) and the ACPL-C870 (±3% gain tolerance) are recommended. For high precision requirements the ACPL-C87B (±0.5% gain tolerance) can be used. The ACPL-C87B/C87A/C870 family operates from a single 5 V supply and provides excellent linearity.

An active-high shutdown pin is available which reduces the IDD1 current to only 15 mA making them suitable for battery-powered and other power-sensitive applications.
The high common-mode transient immunity (15 kV/μs) of the ACPL-C87B/C87A/C870 provides the precision and stability needed to accurately monitor DC-link voltage in high noise environments. Combined with superior optical coupling technology the ACPL-C87B/C87A/C870 implements sigma-delta modulation chopper stabilized amplifiers and differential outputs to provide unequalled isolation-mode noise rejection low offset high gain accuracy and stability.

This performance is delivered in a compact auto-insertable stretched SO-8 (SSO-8) package that meets worldwide regulatory safety standards.

Typical applications

Isolated Voltage Sensing in AC and Servo Motor Drives Isolated DC-Bus Voltage Sensing in Solar Inverters and Wind Turbine Inverters Isolated Sensor Interfaces Signal Isolation in Data Acquisition Systems and General Purpose Voltage Isolation.

Safety and Regulatory Approvals

IEC/EN/DIN EN 60747-5-5: 1414 Vpeak working insulation voltage; UL 1577: 5000 Vrms/1 min double protection rating; CSA: Component Acceptance Notice #5.

Form factor

Compact Auto-Insertable Stretched SO-8 Package.

Product Range
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  Manufacturer Part No Order Code Manufacturer / Description
Availability Price For
Price
Quantity
ACPL-C87AT-000E
ACPL-C87AT-000E - Optocoupler, Optically Isolated Amplifiers, 1 Channel, SSO, 8 Pins, 5 kV, 100 kHz

2313196

Optocoupler, Optically Isolated Amplifiers, 1 Channel, SSO, 8 Pins, 5 kV, 100 kHz

BROADCOM

SENSOR, DC VOLTAGE ISOLATION, AUTOMOTIVE; No. of Channels:1 Channel; Optocoupler Case Style:SSO; No. of Pins:8Pins; Isolation Voltage:5kV; CTR Min:-; Bandwidth:100kHz; Product Range:-; SVHC:No SVHC (12-Jan-2017); Input Current:15mA; No. of Channels:1Chan

198 in stock

+ Check Stock & Lead Times

49 in stock for next day delivery (Liege stock): Order before 20:00(mainland UK) & 18.00(NI) (for re-reeled items 16:30 – mainland UK & NI) Mon-Fri (excluding National Holidays)

149 in stock for next day delivery (UK stock): Order before 20:00(mainland UK) & 18.00(NI) (for re-reeled items 16:30 – mainland UK & NI) Mon-Fri (excluding National Holidays)

  • 640 more will be available on 22/12/20
  • More stock available week commencing 08/03/21

    Restricted Item
    ACPL-C87B-000E
    ACPL-C87B-000E - Isolation Amplifier, Optically, 1 Amplifier, 9.9 mV, 5 kV, 3V to 5.5V, SSO, 8 Pins

    2213635

    Isolation Amplifier, Optically, 1 Amplifier, 9.9 mV, 5 kV, 3V to 5.5V, SSO, 8 Pins

    BROADCOM

    SENSOR, VOLTAGE, ISOLATION AMPLIFIER; No. of Amplifiers:1 Amplifier; Input Offset Voltage:9.9mV; Isolation Voltage:5kV; Supply Voltage Range:3V to 5.5V; Amplifier Case Style:SOIC; No. of Pins:8Pins; Bandwidth:100kHz; Gain Non-Linearity Max:0.1%; Operatin

    3,918 in stock

    + Check Stock & Lead Times

    135 in stock for next day delivery (Liege stock): Order before 20:00(mainland UK) & 18.00(NI) (for re-reeled items 16:30 – mainland UK & NI) Mon-Fri (excluding National Holidays)

    3,783 in stock for next day delivery (UK stock): Order before 20:00(mainland UK) & 18.00(NI) (for re-reeled items 16:30 – mainland UK & NI) Mon-Fri (excluding National Holidays)

  • 1,440 more will be available on 14/09/20
  • More stock available week commencing 08/02/21

    Restricted Item
    ACPL-C87A-000E
    ACPL-C87A-000E - Isolation Amplifier, Optically, 1 Amplifier, -300 µV, 5 kV, 3V to 5.5V, SOIC, 8 Pins

    2213634

    Isolation Amplifier, Optically, 1 Amplifier, -300 µV, 5 kV, 3V to 5.5V, SOIC, 8 Pins

    BROADCOM

    SENSOR, VOLTAGE, ISOLATION AMPLIFIER; No. of Amplifiers:1 Amplifier; Input Offset Voltage:-300µV; Isolation Voltage:5kV; Supply Voltage Range:3V to 5.5V; Amplifier Case Style:SOIC; No. of Pins:8Pins; Bandwidth:100kHz; Gain Non-Linearity Max:0.1%; Operati

    4,669 in stock

    + Check Stock & Lead Times

    769 in stock for next day delivery (Liege stock): Order before 20:00(mainland UK) & 18.00(NI) (for re-reeled items 16:30 – mainland UK & NI) Mon-Fri (excluding National Holidays)

    3,900 in stock for next day delivery (UK stock): Order before 20:00(mainland UK) & 18.00(NI) (for re-reeled items 16:30 – mainland UK & NI) Mon-Fri (excluding National Holidays)

    More stock available week commencing 08/02/21

    Restricted Item
    ACPL-C87BT-000E
    ACPL-C87BT-000E - Optocoupler, Optically Isolated Amplifiers, 1 Channel, SSO, 8 Pins, 5 kV, 100 kHz

    2313197

    Optocoupler, Optically Isolated Amplifiers, 1 Channel, SSO, 8 Pins, 5 kV, 100 kHz

    BROADCOM

    SENSOR, DC VOLTAGE ISOLATION, AUTOMOTIVE; No. of Channels:1 Channel; Optocoupler Case Style:SSO; No. of Pins:8Pins; Isolation Voltage:5kV; CTR Min:-; Bandwidth:100kHz; Product Range:-; SVHC:No SVHC (12-Jan-2017); Input Current:15mA; No. of Channels:1Chan

    595 in stock

    + Check Stock & Lead Times

    136 in stock for next day delivery (Liege stock): Order before 20:00(mainland UK) & 18.00(NI) (for re-reeled items 16:30 – mainland UK & NI) Mon-Fri (excluding National Holidays)

    459 in stock for next day delivery (UK stock): Order before 20:00(mainland UK) & 18.00(NI) (for re-reeled items 16:30 – mainland UK & NI) Mon-Fri (excluding National Holidays)

  • 480 more will be available on 29/10/20
  • More stock available week commencing 08/03/21

    Restricted Item
    ACPL-C870-000E
    ACPL-C870-000E - Isolation Amplifier, Optically, 1 Amplifier, -300 µV, 5 kV, 3V to 5.5V, SOIC, 8 Pins

    2213633

    Isolation Amplifier, Optically, 1 Amplifier, -300 µV, 5 kV, 3V to 5.5V, SOIC, 8 Pins

    BROADCOM

    SENSOR, VOLTAGE, ISOLATION AMPLIFIER; No. of Amplifiers:1 Amplifier; Input Offset Voltage:-300µV; Isolation Voltage:5kV; Supply Voltage Range:3V to 5.5V; Amplifier Case Style:SOIC; No. of Pins:8Pins; Bandwidth:100kHz; Gain Non-Linearity Max:0.1%; Operati

    1,807 in stock

    + Check Stock & Lead Times

    735 in stock for next day delivery (Liege stock): Order before 20:00(mainland UK) & 18.00(NI) (for re-reeled items 16:30 – mainland UK & NI) Mon-Fri (excluding National Holidays)

    1,072 in stock for next day delivery (UK stock): Order before 20:00(mainland UK) & 18.00(NI) (for re-reeled items 16:30 – mainland UK & NI) Mon-Fri (excluding National Holidays)

    More stock available week commencing 08/02/21

    Restricted Item