Overview
The Broadcom® ACPL-C87B-500E is an optical isolation amplifier designed specifically for voltage sensing applications. This component is part of the ACPL-C87B/C87A/C870 family, which is renowned for its high precision and reliability in isolated voltage sensing. The ACPL-C87B-500E is particularly suited for high precision requirements due to its ±0.5% gain tolerance, making it an ideal choice for applications that demand accurate and stable voltage monitoring.
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 (ACPL-C87B, ± 0.5%) | G0 | 0.995 | 1 | 1.005 | V/V | TA = 25°C; VDD2 = 5V |
| Input Impedance | 1 | 1 GΩ | ||||
| Input Range | VIN | 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% max | |||||
| Bandwidth | 100 kHz | |||||
| Supply Voltage (Output Side) | VDD2 | 3 | 5.5 | V |
Key Features
- Advanced Sigma-Delta (Σ-Δ) Modulation Technology: Provides high gain accuracy and stability.
- High Gain Accuracy: ±0.5% for the ACPL-C87B model, ensuring precise voltage sensing.
- High Input Impedance: 1 GΩ, which is beneficial for minimizing the impact on the circuit being measured.
- Active-High Shutdown Pin: Reduces IDD1 current to only 15 µA, making it suitable for battery-powered and power-sensitive applications.
- Wide Bandwidth: 100 kHz, allowing for accurate monitoring of dynamic voltage changes.
- High Common-Mode Transient Immunity: 15 kV/ms, ensuring stable operation in high noise environments.
- Compact Packaging: Stretched SO-8 (SSO-8) package, which is auto-insertable and meets worldwide regulatory safety standards).
Applications
The ACPL-C87B-500E is well-suited for various applications requiring isolated voltage sensing, including:
- Electronic Power Converters: Such as motor drives and renewable energy systems.
- High Noise Environments: Where high common-mode transient immunity is crucial).
- Battery-Powered Devices: Due to its low power consumption during shutdown).
- Industrial Automation: For precise voltage monitoring in industrial control systems).
Q & A
- What is the primary function of the ACPL-C87B-500E?
The ACPL-C87B-500E is an optical isolation amplifier designed for voltage sensing applications, providing high precision and reliability in isolated voltage monitoring. - What is the gain tolerance of the ACPL-C87B-500E?
The ACPL-C87B-500E has a gain tolerance of ±0.5%). - What is the input range of the ACPL-C87B-500E?
The input range is 0 to 2 V). - What is the input impedance of the ACPL-C87B-500E?
The input impedance is 1 GΩ). - Does the ACPL-C87B-500E have a shutdown feature?
Yes, it has an active-high shutdown pin that reduces the IDD1 current to only 15 µA). - What is the bandwidth of the ACPL-C87B-500E?
The bandwidth is 100 kHz). - What is the common-mode transient immunity of the ACPL-C87B-500E?
The common-mode transient immunity is 15 kV/ms). - What type of packaging does the ACPL-C87B-500E use?
The ACPL-C87B-500E uses a Stretched SO-8 (SSO-8) package). - Is the ACPL-C87B-500E compliant with regulatory safety standards?
Yes, it meets worldwide regulatory safety standards, including IEC/EN/DIN EN 60747-5-5). - What are some typical applications of the ACPL-C87B-500E?
Typical applications include electronic power converters, high noise environments, battery-powered devices, and industrial automation).
