AMC1304L25QDWRQ1

Product Overview

Category: Integrated Circuit (IC)

Use: The AMC1304L25QDWRQ1 is a high-precision, isolated delta-sigma modulator with an integrated digital filter. It is specifically designed for current sensing applications in motor control systems, power inverters, and other industrial applications.

Characteristics: - High accuracy and linearity - Isolation voltage up to 7000 Vrms - Low offset and gain error - Wide operating temperature range (-40°C to +125°C) - Small package size (SOIC-16) - RoHS compliant

Package: The AMC1304L25QDWRQ1 is available in a small outline integrated circuit (SOIC) package. This package provides excellent thermal performance and ease of handling during assembly.

Essence: The essence of the AMC1304L25QDWRQ1 lies in its ability to accurately measure current in high-voltage applications while providing electrical isolation between the measured current and the measurement circuitry.

Packaging/Quantity: The AMC1304L25QDWRQ1 is typically sold in reels of 2500 units per reel.

Specifications

• Supply Voltage: 3.0 V to 5.5 V
• Input Current Range: ±50 mA
• Isolation Voltage: 7000 Vrms
• Output Data Rate: 10 kSPS
• Resolution: 24 bits
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The AMC1304L25QDWRQ1 has a total of 16 pins arranged as follows:

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| | | 1 2 3 4 5 6 7 8 9 | |_______________________________________| | | | 10 11 12 13 14 15 16 | |_______________________________________| ```

Pin Description: 1. VDD: Power supply voltage 2. VSS: Ground 3. VINP: Positive input for current measurement 4. VINN: Negative input for current measurement 5. VREF: Reference voltage input 6. AGND: Analog ground 7. AVDD: Analog power supply voltage 8. CLK: Clock input 9. SDI: Serial data input 10. SDO: Serial data output 11. CS: Chip select input 12. DGND: Digital ground 13. DVDD: Digital power supply voltage 14. NC: No connection 15. NC: No connection 16. NC: No connection

Functional Features

• High-resolution delta-sigma modulator for accurate current measurement
• Integrated digital filter for noise reduction
• Isolation barrier for electrical safety
• Low offset and gain error for precise measurements
• Wide operating temperature range for versatile applications

Advantages and Disadvantages

Advantages: - High accuracy and linearity ensure precise current measurements. - Electrical isolation protects the measurement circuitry from high voltages. - Small package size allows for space-efficient designs. - Wide operating temperature range enables usage in harsh environments.

Disadvantages: - Limited input current range of ±50 mA may not be suitable for high-current applications. - Higher cost compared to non-isolated current sensing solutions.

Working Principles

The AMC1304L25QDWRQ1 utilizes a delta-sigma modulation technique to convert the analog input current into a digital representation. The modulated signal is then passed through an integrated digital filter to remove noise and improve the signal-to-noise ratio. The isolated barrier ensures electrical safety by providing galvanic isolation between the input current and the measurement circuitry.

Detailed Application Field Plans

The AMC1304L25QDWRQ1 is well-suited for a wide range of applications, including: - Motor control systems - Power inverters - Industrial automation - Renewable energy systems - Battery management systems - Uninterruptible power supplies (UPS) - Electric vehicle charging stations

Detailed and Complete Alternative Models

1. AMC1304L05: Similar to AMC1304L25QDWRQ1 but with a lower input current range of ±5 mA.
2. AMC1304L50: Similar to AMC1304L25QDWRQ1 but with a higher input current range of ±50 mA.
3. AMC1304L100: Similar to AMC1304L25QDWRQ1 but with a higher input current range of ±100 mA.

These alternative models provide flexibility in current sensing applications based on specific requirements.

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