AMC1203DWR

Product Overview

Category: Integrated Circuit (IC)

Use: The AMC1203DWR is a high-precision, isolated delta-sigma modulator designed for current shunt measurement in industrial applications.

Characteristics: - High accuracy and linearity - Isolation voltage up to 4 kV - Low power consumption - Wide temperature range (-40°C to +125°C) - Small package size (SOIC-16) - Single-supply operation

Package: SOIC-16

Essence: The AMC1203DWR is an essential component for accurate current measurement in various industrial systems. It provides isolation between the measured current and the measurement circuitry, ensuring safety and reliability.

Packaging/Quantity: The AMC1203DWR is typically sold in reels of 250 units.

Specifications

• Resolution: 16 bits
• Input Voltage Range: ±250 mV
• Supply Voltage Range: 2.7 V to 5.5 V
• Common-Mode Voltage Range: -0.3 V to +0.3 V
• Output Data Rate: Up to 20 kSPS
• Nonlinearity Error: ±0.001% FSR
• Gain Error: ±0.05% FSR
• Offset Error: ±10 µV
• Power Consumption: 1.6 mW (typical)

Pin Configuration

The AMC1203DWR has a total of 16 pins arranged as follows:

```

---

| | --|o o|-- Pin 1: VDD --|o o|-- Pin 2: VDD --|o o|-- Pin 3: GND --|o o|-- Pin 4: GND --|o o|-- Pin 5: VCM --|o o|-- Pin 6: INP --|o o|-- Pin 7: INN --|o o|-- Pin 8: REF+ --|o o|-- Pin 9: REF- --|o o|-- Pin 10: AGND --|o o|-- Pin 11: AVDD --|o o|-- Pin 12: AVDD --|o o|-- Pin 13: CLK --|o o|-- Pin 14: DOUT --|o o|-- Pin 15: DGND --|o____ o|-- Pin 16: NC |_______| ```

Functional Features

• High-resolution current measurement
• Isolation between measured current and measurement circuitry
• Low power consumption for energy-efficient applications
• Wide operating temperature range for industrial environments
• Single-supply operation simplifies system design

Advantages and Disadvantages

Advantages: - High accuracy and linearity ensure precise current measurements. - Isolation voltage up to 4 kV provides safety and protection. - Low power consumption reduces energy costs. - Wide temperature range allows for reliable operation in harsh conditions. - Small package size enables space-saving designs.

Disadvantages: - Limited input voltage range may not be suitable for high-current applications. - Nonlinearity error may affect measurement accuracy in certain scenarios.

Working Principles

The AMC1203DWR utilizes a delta-sigma modulator to convert the analog input current into a digital representation. The modulator oversamples the input signal and applies noise shaping techniques to achieve high resolution and accuracy. The isolated architecture ensures that the measured current does not interfere with the measurement circuitry, providing safety and preventing ground loops.

Detailed Application Field Plans

The AMC1203DWR is commonly used in the following applications:

1. Industrial motor control systems
2. Power monitoring and management systems
3. Battery management systems
4. Solar inverters
5. Electric vehicle charging stations

Alternative Models

• AMC1203DW
• AMC1203DUBR
• AMC1203DUBRG4
• AMC1203DUBRQ1

These alternative models offer similar functionality and performance to the AMC1203DWR, providing flexibility for different design requirements.

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