Broadcom Isolation Amplifiers for Voltage Sensing

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

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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.

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Manufacturer Part No	Order Code	Manufacturer / Description	Availability	Price For	Price	Quantity	No. of Amplifiers	No. of Channels	Optocoupler Case Style	Supply Voltage Range	No. of Pins	IC Case / Package	Isolation Voltage	CTR Min	Bandwidth	Gain Bandwidth Product	Gain Non-Linearity Max	Isolation Type	IC Mounting	Operating Temperature Min	Operating Temperature Max	Product Range
ACPL-C87B-000E	2213635 Data Sheet + RoHS	Isolation Amplifier, Optically, 1 Amplifier, 9.9 mV, 5 kV, 3V to 5.5V, SSO, 8 Pins BROADCOM You previously purchased this product. View in Order History	7,291 in stock + Check Stock & Lead Times 7,291 in stock for next day delivery (UK stock) 1,920 more will be available week commencing 12/05/27 1,920 more will be available week commencing 11/08/27 1,680 more will be available week commencing 01/09/27 More stock available week commencing 18/10/27	Each	1+ £7.00 £8.40 5+ £5.82 £6.98 10+ £4.64 £5.57 50+ £4.49 £5.39 100+ £4.33 £5.20 250+ £4.24 £5.09 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	1Amplifiers	1 Channel	SSO	3V to 5.5V	8Pins	SOIC	5kVrms	-	100kHz	100kHz	0.1%	Optical	Surface Mount	-40°C	105°C	ACPL-C87x Series
ACPL-C87A-000E	2213634 Data Sheet + RoHS Date/Lot Code	Optocoupler, Optically, 1 Channel, SSO, 8 Pins, 5 kVrms, 100 kHz BROADCOM You previously purchased this product. View in Order History	1,602 in stock + Check Stock & Lead Times 1,602 in stock for next day delivery (UK stock) 960 more will be available week commencing 18/12/26 960 more will be available week commencing 13/01/27 960 more will be available week commencing 05/05/27 960 more will be available week commencing 28/05/27 More stock available week commencing 18/10/27	Each	1+ £5.64 £6.77 5+ £4.68 £5.62 10+ £3.72 £4.46 50+ £3.59 £4.31 100+ £3.45 £4.14 250+ £3.38 £4.06 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	1Amplifiers	1 Channel	SSO	3V to 5.5V	8Pins	SOIC	5kVrms	-	100kHz	100kHz	0.1%	Optical	Surface Mount	-40°C	105°C	ACPL-C87x Series
ACPL-C870-000E	2213633 Data Sheet + RoHS Date/Lot Code	Optocoupler, Optically, 1 Channel, SSO, 8 Pins, 5 kVrms, 100 kHz BROADCOM You previously purchased this product. View in Order History	3,246 in stock + Check Stock & Lead Times 3,246 in stock for next day delivery (UK stock) 1,120 more will be available week commencing 23/04/27 1,120 more will be available week commencing 07/05/27 1,120 more will be available week commencing 20/08/27 More stock available week commencing 18/10/27	Each	1+ £4.76 £5.71 10+ £3.11 £3.73 25+ £3.03 £3.64 50+ £2.96 £3.55 100+ £2.88 £3.46 500+ £2.82 £3.38 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	1Amplifiers	1 Channel	SSO	3V to 5.5V	8Pins	SOIC	5kVrms	-	100kHz	100kHz	0.1%	Optical	Surface Mount	-40°C	105°C	ACPL-C87x Series
ACPL-C87BT-000E	2313197 Data Sheet + RoHS Date/Lot Code	Optocoupler, Optically Isolated Amplifiers, 1 Channel, SSO, 8 Pins, 5 kV, 100 kHz BROADCOM You previously purchased this product. View in Order History	1,720 in stock + Check Stock & Lead Times 1,720 in stock for next day delivery (UK stock) 480 more will be available week commencing 06/08/27 More stock available week commencing 18/10/27	Each	1+ £9.34 £11.21 5+ £7.78 £9.34 10+ £6.22 £7.46 50+ £6.07 £7.28 100+ £5.92 £7.10 250+ £5.80 £6.96 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	-	1 Channel	SSO	-	8Pins	-	5kV	-	100kHz	-	-	-	-	-	-	-
ACPL-C87AT-000E	2313196 Data Sheet + RoHS Date/Lot Code	Optocoupler, Optically Isolated Amplifiers, 1 Channel, SSO, 8 Pins, 5 kV, 100 kHz BROADCOM You previously purchased this product. View in Order History	14 in stock + Check Stock & Lead Times 14 in stock for next day delivery (UK stock) 640 more will be available week commencing 15/02/27 More stock available week commencing 22/02/27	Each	1+ £7.80 £9.36 5+ £6.42 £7.70 10+ £5.03 £6.04 50+ £4.91 £5.89 100+ £4.78 £5.74 250+ £4.68 £5.62 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	-	1 Channel	SSO	-	8Pins	-	5kV	-	100kHz	-	-	-	-	-	-	-