ADS8484IBRGZT

Analog To Digital Converters (ADC) Overview

The ADS8484IBRGZT is an 18-bit, 1.25 MSPS analog-to-digital converter (ADC) manufactured by Texas Instruments. It utilizes a successive approximation register (SAR) architecture and features a single differential input channel. The device operates with an analog supply voltage range of 4.75 V to 5.25 V and a digital supply voltage range of 2.7 V to 5.25 V. It is housed in a 48-lead HVQCCN package measuring 7 mm x 7 mm. Key performance specifications include a maximum sampling rate of 1.25 million samples per second, a conversion time of 0.61 µs, and a maximum linear error of 0.0015%. The component supports both internal and external reference configurations.

Analog To Digital Converters (ADC) Feature Summary

• High-resolution 18-bit data acquisition capability for precision measurement applications
• Integrated high-speed SAR architecture supporting up to 1.25 MSPS throughput
• Flexible power management with independent analog and digital supply domains
• Dual reference options allowing selection between internal and external voltage references

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring high-precision signal conditioning
• Medical instrumentation such as ultrasound imaging and patient monitoring devices
• Test and measurement equipment including oscilloscopes and data acquisition modules

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'RGZT' against the manufacturer's current datasheet to confirm package type and reel configuration. Ensure the operating temperature range meets system requirements. Cross-reference the part number with official distributors to validate authenticity and check for any recent lifecycle changes or obsolescence notices before finalizing procurement plans.

Analog To Digital Converters (ADC) Selection Notes

Select this component when 18-bit resolution and 1.25 MSPS speed are required for single-channel applications. Consider the available 48-lead QFN footprint during PCB layout. Evaluate whether the integrated reference suffices or if an external low-noise reference is needed for optimal SNR. Compare power consumption against system thermal constraints given the dual-supply architecture.

Analog To Digital Converters (ADC) Part Context

This device belongs to the ADS848x family of high-speed, high-resolution ADCs from Texas Instruments. It shares architectural similarities with the ADS8481 and ADS8484 variants but offers specific performance trade-offs in sampling rate and resolution. The family is designed for applications demanding precise analog-to-digital conversion with minimal external component count.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8481IRGZT serves as a functional substitute within the same family, offering similar 18-bit resolution but with a 1 MSPS sampling rate. Verify pin compatibility and software register settings when migrating between these variants to ensure seamless integration without hardware redesign.