AD7400AYRWZ

Product Overview

• Category: Analog-to-Digital Converter (ADC)
• Use: The AD7400AYRWZ is a high-performance, 16-bit, fully isolated sigma-delta modulator with an integrated digital isolator. It is designed for precision measurement applications in industrial automation, power monitoring, and instrumentation.
• Characteristics: The device features excellent linearity and noise performance, providing accurate conversion of analog signals to digital data. It also offers galvanic isolation, ensuring reliable operation in noisy industrial environments.
• Package: The AD7400AYRWZ is available in a small form factor, 16-lead wide body SOIC package.
• Packaging/Quantity: The product is typically sold in reels containing a specific quantity, as per customer requirements.

Specifications

• Resolution: 16 bits
• Input Range: ±250 mV
• Isolation Voltage: 5 kV RMS
• Sample Rate: Up to 20 kSPS
• Power Supply: 3.3 V
• Operating Temperature Range: -40°C to +105°C

Detailed Pin Configuration

The AD7400AYRWZ has a 16-lead wide body SOIC package with the following pin configuration: 1. VIN+ 2. VIN- 3. AGND 4. DGND 5. VDD 6. VDDI 7. SCLK 8. SDATA 9. SDO 10. CS 11. RESET 12. DOUT 13. DIN 14. DVDD 15. AVDD 16. NC

Functional Features

• High Performance: The AD7400AYRWZ offers exceptional linearity and noise performance, ensuring accurate conversion of analog signals.
• Integrated Isolator: The device features an integrated digital isolator, providing galvanic isolation for reliable operation in harsh industrial environments.
• Low Power Consumption: With a low power supply requirement of 3.3 V, the AD7400AYRWZ minimizes power consumption without compromising performance.

Advantages and Disadvantages

Advantages

• High precision and accuracy in analog-to-digital conversion
• Integrated digital isolator for reliable operation in noisy environments
• Compact form factor for space-constrained applications

Disadvantages

• Limited input range compared to some other ADCs in the market
• Higher cost compared to lower-resolution ADC alternatives

Working Principles

The AD7400AYRWZ utilizes a sigma-delta modulation technique to achieve high-resolution analog-to-digital conversion. The integrated digital isolator ensures that the converted digital data is transmitted across the isolation barrier, providing protection against electrical noise and transient voltages.

Detailed Application Field Plans

The AD7400AYRWZ is well-suited for various precision measurement applications, including: - Industrial Automation: Monitoring and control of industrial processes requiring high-precision analog signal conversion. - Power Monitoring: Accurate measurement of voltage and current in power distribution systems. - Instrumentation: Precision data acquisition in test and measurement equipment for research and development purposes.

Detailed and Complete Alternative Models

• AD4000: A lower-cost alternative with 12-bit resolution and similar isolation capabilities.
• AD7600: A higher-resolution alternative with 18-bit precision for demanding measurement applications.

In conclusion, the AD7400AYRWZ is a high-performance, fully isolated sigma-delta modulator suitable for precision measurement applications in industrial automation, power monitoring, and instrumentation. Its integration of a digital isolator, compact form factor, and exceptional linearity make it a compelling choice for applications requiring accurate analog-to-digital conversion in challenging environments.

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