AD7720BRU-REEL7

ADCs/DACs - Special Purpose Overview

The AD7720BRU-REEL7 is a 7th-order sigma-delta modulator from Analog Devices, packaged in a 28-lead TSSOP. It converts analog signals into a high-speed 1-bit data stream using a differential input range of 0 V to +2.5 V or ±1.25 V. The device operates on a single +5 V supply and features an on-chip 2.5 V reference. Key electrical parameters include a 16-bit resolution, 90 dB dynamic range, and a master clock frequency up to 12.5 MHz. It supports both unipolar and bipolar modes with serial output.

ADCs/DACs - Special Purpose Feature Summary

• 7th-order sigma-delta modulation architecture for high-resolution conversion
• On-chip 2.5 V voltage reference with external reference capability
• Differential input range of 0 V to +2.5 V (unipolar) or ±1.25 V (bipolar)
• 16-bit resolution with 90 dB typical dynamic range
• Serial bit-stream output compatible with standard digital filters

ADCs/DACs - Special Purpose Applications

• High-resolution audio processing systems
• Industrial process control instrumentation
• Medical equipment requiring precise signal acquisition
• Data acquisition systems utilizing sigma-delta architectures

ADCs/DACs - Special Purpose Procurement Notes

Verify the component authenticity through official Analog Devices channels or authorized distributors. Confirm the package type is 28-lead TSSOP and the temperature range is -40°C to +85°C. Ensure the reel packaging matches the REEL7 suffix requirements for automated assembly processes.

ADCs/DACs - Special Purpose Selection Notes

Select this component when a 16-bit effective resolution and high dynamic range are required in a compact surface-mount package. Consider the internal 2.5 V reference if system complexity must be minimized, or utilize the REF1/REF2 pins for external precision references. Ensure the host system can handle the serial bit-stream interface and implement the necessary digital decimation filter.

ADCs/DACs - Special Purpose Part Context

The AD7720 is part of the AD7720 series of sigma-delta modulators. The BRU suffix indicates the industrial temperature range (-40°C to +85°C) and the TSSOP-28 package. The REEL7 designation specifies the tape and reel packaging format for high-volume manufacturing.

ADCs/DACs - Special Purpose Replacement Considerations

Direct replacements should maintain the 28-lead TSSOP package and 16-bit sigma-delta architecture. Verify pin compatibility and electrical specifications such as supply voltage and input range before substitution.