Overview
The Broadcom® ACPL-C870-500E is an optical isolation amplifier designed specifically for voltage sensing applications. This component is part of the ACPL-C87 series, which includes the ACPL-C87B and ACPL-C87A models. The ACPL-C870-500E is well-suited for isolated voltage sensing requirements in electronic power converters, including motor drives and renewable energy systems. It features advanced sigma-delta (Σ-Δ) modulation technology, high gain accuracy, and low offset voltage, making it an ideal choice for applications requiring precise and isolated voltage measurements.
Key Specifications
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Test Conditions/Notes |
|---|---|---|---|---|---|---|
| Input Offset Voltage | VOS | -9.9 | -0.3 | 9.9 | mV | TA = 25°C |
| Gain | G0 | 0.997 | 1 | 1.003 | V/V | TA = 25°C; VDD2 = 5V |
| Input Impedance | 1 GΩ | |||||
| Input Range | 0 | 2 V | ||||
| Gain Drift | 35 ppm/°C | TA = –40°C to +105°C | ||||
| Offset Voltage Drift | 21 µV/°C | TA = –40°C to +105°C | ||||
| Non-Linearity | 0.1% | |||||
| Bandwidth | 100 kHz | |||||
| Supply Voltage (Output Side) | VDD2 | 3 V | 5.5 V | Referenced to GND2 | ||
| Isolation Voltage | 5000 Vrms | UL 1577 | ||||
| Operating Temperature | -40°C | +105°C | ||||
| Package Type | Stretched SO-8 (SSO-8) |
Key Features
- Advanced Sigma-Delta Modulation Technology: Ensures high gain accuracy and stability.
- High Input Impedance: 1 GΩ input impedance, suitable for voltage sensing applications.
- Unity Gain and High Accuracy: ±3% gain tolerance for the ACPL-C870 model, ensuring precise voltage measurements.
- Low Offset and Drift: Low offset voltage and drift over temperature, enhancing the component's reliability and accuracy.
- Wide Supply Range: Operates with a supply voltage range of 3V to 5.5V on the output side.
- High Bandwidth: 100 kHz bandwidth, suitable for various high-frequency applications.
- Compact Package: Stretched SO-8 (SSO-8) package, meeting worldwide regulatory safety standards.
- Active-High Shutdown Pin: Allows for easy control and shutdown of the device.
Applications
- Electronic Power Converters: Ideal for isolated voltage sensing in power converters, including DC-DC converters and AC-DC converters.
- Motor Drives: Used in motor drive systems to ensure accurate and isolated voltage measurements.
- Renewable Energy Systems: Suitable for applications in renewable energy systems, such as solar and wind power systems.
- Data Acquisition Systems: Provides signal isolation in data acquisition systems, ensuring reliable and accurate data collection.
Q & A
- What is the primary function of the ACPL-C870-500E?
The ACPL-C870-500E is an optical isolation amplifier designed specifically for voltage sensing applications.
- What is the input range of the ACPL-C870-500E?
The input range is 0 to 2V.
- What is the gain accuracy of the ACPL-C870-500E?
The gain accuracy is ±3% for the ACPL-C870 model.
- What is the isolation voltage rating of the ACPL-C870-500E?
The isolation voltage rating is 5000 Vrms.
- What is the operating temperature range of the ACPL-C870-500E?
The operating temperature range is -40°C to +105°C.
- What package type does the ACPL-C870-500E come in?
The component comes in a Stretched SO-8 (SSO-8) package.
- What is the bandwidth of the ACPL-C870-500E?
The bandwidth is 100 kHz.
- Does the ACPL-C870-500E have a shutdown feature?
Yes, it has an active-high shutdown pin.
- What are some common applications of the ACPL-C870-500E?
Common applications include electronic power converters, motor drives, and renewable energy systems.
- Is the ACPL-C870-500E RoHS compliant?
Yes, the ACPL-C870-500E is RoHS compliant.
