Description

This device, the AD7724AST, is an electronic component belonging to the ADCs/DACs product category. It features two seventh-order sigma-delta modulators that can convert analog input signals into high-speed 1-bit data streams. With a 5V power supply, it accepts a differential input range of 0V to +2.5V or ±1.25V centered about a common-mode bias. The AD7724AST eliminates the need for external sample-and-hold circuitry as it continuously samples the analog inputs using its analog modulators. The input information is represented in the output stream as a density of ones and can be digitally reconstructed using an appropriate digital filter.

Specifications and features

• 13 MHz Master Clock Frequency
• 0V to +2.5V or ±1.25V Input Range
• Single Bit Output Stream
• 90 dB Dynamic Range
• Power Supplies:
  • AVDD, DVDD: 5V ± 5%
  • DVDD1: 3V ± 5%
• Logic Outputs: 3V/5V Compatible
• On-Chip 2.5V Voltage Reference
• 48-Lead LQFP

Application Scenarios

The AD7724AST can find application in various scenarios due to its features and specifications. Some possible scenarios include:

• Audio signal processing
• Data acquisition systems
• Measurement instruments
• Industrial automation

Comparison

The AD7724AST offers the following advantages:

• High-speed conversion
• Wide input range
• Continuous sampling of analog inputs
• On-chip voltage reference
• Compatibility with different logic output voltages

The AD7724AST has no reported disadvantages.