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
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.
| Manufacturer Part No | Order Code | Manufacturer / Description | Avail | Price For | Price | Quantity | |
|---|---|---|---|---|---|---|---|
ACPL-C87BT-000E
|
BROADCOM LIMITED - Optocoupler, Optically Isolated Amplifiers, 1 Channel, SSO, 8 Pins, 5 kV, 100 kHz 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; Packaging:Each; Product Range:-; SVHC:No SVHC (12-Jan-2017); Input Current:15mA; No. o |
892 in stock + Check Stock & Lead Times433 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 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)
|
Each |
1+ £10.01 3+ £9.20 5+ £8.30 10+ £8.03 15+ £7.74 25+ £7.39 75+ £7.32 150+ £7.17 More Pricing... |
Min: 1
Mult: 1
|
||
ACPL-C87AT-000E
|
BROADCOM LIMITED - Optocoupler, Optically Isolated Amplifiers, 1 Channel, SSO, 8 Pins, 5 kV, 100 kHz 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; Packaging:Each; Product Range:-; SVHC:No SVHC (12-Jan-2017); Input Current:15mA; No. o |
748 in stock + Check Stock & Lead Times328 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) 420 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 11/12/17 |
Each |
1+ £8.03 3+ £7.38 5+ £6.66 10+ £6.44 15+ £6.20 50+ £5.93 100+ £5.87 150+ £5.75 More Pricing... |
Min: 1
Mult: 1
|
||
ACPL-C870-000E
|
BROADCOM LIMITED - Isolation Amplifier, Optically, 1 Amplifier, 5 kV, 3V to 5.5V, SOIC, 8 Pins SENSOR, VOLTAGE, ISOLATION AMPLIFIER; No. of Amplifiers:1 Amplifier; 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%; Operating Temperature Min:-40°C; Ope |
Awaiting Delivery (Available for backorder to lead times shown) + Check Stock & Lead Times |
Each |
1+ £5.19 10+ £3.97 50+ £3.70 100+ £3.42 250+ £3.24 500+ £2.47 2000+ £2.35 3000+ £2.30 More Pricing... |
Min: 1
Mult: 1
|
||
ACPL-C87A-000E
|
BROADCOM LIMITED - Isolation Amplifier, Optically, 1 Amplifier, 5 kV, 3V to 5.5V, SOIC, 8 Pins SENSOR, VOLTAGE, ISOLATION AMPLIFIER; No. of Amplifiers:1 Amplifier; 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%; Operating Temperature Min:-40°C; Ope |
1,093 in stock + Check Stock & Lead Times27 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) 1,066 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)
|
Each |
1+ £6.13 10+ £4.84 50+ £4.50 100+ £4.16 250+ £3.92 500+ £3.53 1000+ £3.07 2000+ £2.92 More Pricing... |
Min: 1
Mult: 1
|
||
|
ACPL-C87B-000E
|
BROADCOM LIMITED - Isolation Amplifier, Optically, 1 Amplifier, 9.9 mV, 5 kV, 3V to 5.5V, SOIC, 8 Pins 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 |
Awaiting Delivery (Available for backorder to lead times shown) + Check Stock & Lead Times |
Each |
1+ £6.87 10+ £5.43 50+ £5.31 100+ £4.72 250+ £4.49 500+ £4.10 800+ £3.85 2000+ £3.70 More Pricing... |
Min: 1
Mult: 1
|
