2014/07/30
 
 
 
Home > Manufacturers > Avago > Isolation Amplifiers for Voltage Sensing
Share   Share on Facebook Share on Twitter Share on Google Plus Share by Email logo
Avago

Avago Isolation Amplifiers for Voltage Sensing

The ACPL-C87B/C87A/C870 voltage sensors from Avago 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
Avago Isolation Amplifiers for Voltage Sensing

Product Description

The ACPL-C87B/C87A/C870 voltage sensors from Avago 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 Series

5 products found

You have not selected any items to compare. Please select at least two items and click the compare button.
Image Order Code Mftr.&
Part No.
Description Tech
Info
RoHS Avail. Price
For
List
Price
Save Relates to Qty


2213635

AVAGO TECHNOLOGIES
ACPL-C87B-000E

SENSOR, VOLTAGE, ISOLATION AMPLIFIER

No. of Amplifiers:1; Input Offset Voltage:9.9mV; Isolation Voltage:5kV; Supply Voltage Range:3V to 5.5V; Amplifier Case Style:SOIC;

Technical Data Sheet (123.15KB) EN
Product Range
RoHS Certificate of Compliance
RoHS Compliant Yes Awaiting Delivery 1 Each
1+
£5.54
10+
£5.10
50+
£4.85
100+
£3.69
more...
Contact Me When In Stock


2213634

AVAGO TECHNOLOGIES
ACPL-C87A-000E

SENSOR, VOLTAGE, ISOLATION AMPLIFIER

No. of Amplifiers:1; Isolation Voltage:5kV; Supply Voltage Range:3V to 5.5V; Amplifier Case Style:SOIC; No. of Pins:8;

Technical Data Sheet (450.62KB) EN
Product Range
RoHS Certificate of Compliance
RoHS Compliant Yes Awaiting Delivery 1 Each
1+
£4.44
10+
£3.95
50+
£3.70
100+
£2.89
more...
Contact Me When In Stock


2213633

AVAGO TECHNOLOGIES
ACPL-C870-000E

SENSOR, VOLTAGE, ISOLATION AMPLIFIER

No. of Amplifiers:1; Isolation Voltage:5kV; Supply Voltage Range:3V to 5.5V; Amplifier Case Style:SOIC; No. of Pins:8;

Technical Data Sheet (450.60KB) EN
Product Range
RoHS Certificate of Compliance
RoHS Compliant Yes
113 in stock
cut-off times
113 UK Stock: Order before 20:00 (for re-reeled items 16:30) Mon-Fri (excluding National Holidays)
1 Each
1+
£3.65
10+
£3.13
50+
£2.86
100+
£2.73
more...
113 in stock for next working day delivery (UK stock)
cut-off times
113 UK Stock: Order before 20:00 (for re-reeled items 16:30) Mon-Fri (excluding National Holidays)


2313197

AVAGO TECHNOLOGIES
ACPL-C87BT-000E

SENSOR, DC VOLTAGE ISOLATION, AUTOMOTIVE

SVHC:No SVHC (16-Jun-2014); Input Current:15mA; Isolation Voltage:5kV; No. of Channels:1; No. of Pins:8;

Technical Data Sheet (1.32MB) EN
Product Range
RoHS Certificate of Compliance
RoHS Compliant Yes
105 in stock
cut-off times
35 UK Stock: Order before 20:00 (for re-reeled items 16:30) Mon-Fri (excluding National Holidays)
70 European Stock: Order before 20:00 (for re-reeled items 16:30) Mon-Fri (excluding National Holidays)
1 Each
1+
£7.45
10+
£6.90
25+
£6.34
50+
£6.16
more...
35 in stock for next working day delivery (UK stock)
70 in stock for next working day delivery (EU stock)
cut-off times
35 UK Stock: Order before 20:00 (for re-reeled items 16:30) Mon-Fri (excluding National Holidays)
70 European Stock: Order before 20:00 (for re-reeled items 16:30) Mon-Fri (excluding National Holidays)


2313196

AVAGO TECHNOLOGIES
ACPL-C87AT-000E

SENSOR, DC VOLTAGE ISOLATION, AUTOMOTIVE

SVHC:No SVHC (16-Jun-2014); Input Current:15mA; Isolation Voltage:5kV; No. of Channels:1; No. of Pins:8;

Technical Data Sheet (1.32MB) EN
Product Range
RoHS Certificate of Compliance
RoHS Compliant Yes
58 in stock
cut-off times
55 UK Stock: Order before 20:00 (for re-reeled items 16:30) Mon-Fri (excluding National Holidays)
3 European Stock: Order before 20:00 (for re-reeled items 16:30) Mon-Fri (excluding National Holidays)
1 Each
1+
£6.57
10+
£5.97
25+
£5.53
50+
£5.08
more...
55 in stock for next working day delivery (UK stock)
3 in stock for next working day delivery (EU stock)
cut-off times
55 UK Stock: Order before 20:00 (for re-reeled items 16:30) Mon-Fri (excluding National Holidays)
3 European Stock: Order before 20:00 (for re-reeled items 16:30) Mon-Fri (excluding National Holidays)
You have not selected any items to compare. Please select at least two items and click the compare button.
 
 
   

Feedback Survey

When you are done with your visit to our site, please fill out our feedback survey.

Start the Survey Now! no thanks[x]
powered independently by Qualtrics