Overview
The AMC1100DUB, produced by Texas Instruments, is a precision fully-differential isolation amplifier designed for high-accuracy current and voltage measurements in various industrial applications. This device features a silicon dioxide (SiO2) barrier that provides galvanic isolation, ensuring protection against high common-mode voltages and magnetic interference. The AMC1100DUB is optimized for use with shunt resistors and other low-voltage signal sources, making it ideal for applications such as electricity meters, string inverters, and power measurement systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Fixed Gain | 8 | |
| Common-Mode Rejection Ratio (Typ) | 108 | dB |
| Isolation Transient Overvoltage (Peak) | 4250 | V |
| Isolation Working Voltage (rms) | 800 | V |
| Operating Temperature Range | -40 to 105 | °C |
| High-Side Supply Voltage | 5 V (nominal) | |
| Low-Side Supply Voltage | 3.3 V (nominal) | |
| Package Type | SOP (DUB) | |
| Package Size | 6.57 mm x 9.5 mm | |
| CMTI (Min) | 2.5 | kV/µs |
| Gain Non-Linearity (Max) | 0.075% |
Key Features
- Galvanic Isolation: The AMC1100DUB features a SiO2-based capacitive isolation barrier, providing up to 4250 VPEAK isolation and high magnetic field immunity.
- Precision and Accuracy: Fixed gain of 8 with 0.5% accuracy and a high common-mode rejection ratio of 108 dB.
- Wide Operating Temperature Range: Fully specified over the extended industrial temperature range of -40°C to +105°C.
- Low-Side Operation: Operates with a low-side supply voltage of 3.3 V.
- Safety Certifications: Compliant with safety standards such as DIN VDE V 0884-11: 2017-01, UL1577, and DIN EN 61010-1.
- Input Optimization: Input stage optimized for direct connection to shunt resistors or other low-voltage signal sources.
Applications
- Shunt Resistor Based Current Sensing: Ideal for measuring current in electricity meters, string inverters, and other power measurement applications.
- Power Measurement Systems: Used in various power measurement and monitoring systems where high accuracy and isolation are required.
- Industrial Automation: Suitable for use in industrial automation systems that require precise and isolated signal measurement.
Q & A
- What is the primary function of the AMC1100DUB? The AMC1100DUB is a precision fully-differential isolation amplifier designed for accurate current and voltage measurements.
- What is the isolation voltage of the AMC1100DUB? The device provides up to 4250 VPEAK isolation.
- What are the typical operating supply voltages for the AMC1100DUB? The high-side supply voltage is 5 V (nominal), and the low-side supply voltage is 3.3 V (nominal).
- What is the common-mode rejection ratio of the AMC1100DUB? The common-mode rejection ratio is 108 dB.
- What are the safety certifications for the AMC1100DUB? The device is certified to DIN VDE V 0884-11: 2017-01, UL1577, and DIN EN 61010-1 standards.
- What is the operating temperature range of the AMC1100DUB? The device operates over the extended industrial temperature range of -40°C to +105°C.
- What types of applications is the AMC1100DUB suitable for? It is suitable for shunt resistor based current sensing in electricity meters, string inverters, and other power measurement applications.
- How does the AMC1100DUB protect against magnetic interference? The SiO2-based capacitive isolation barrier provides high magnetic field immunity.
- What is the gain of the AMC1100DUB? The fixed gain is 8 with 0.5% accuracy.
- What package types are available for the AMC1100DUB? The device is available in SOP (DUB) and SOIC (DWV) packages.
