ADS8481IBRGZT

Analog To Digital Converters (ADC) Overview

The ADS8481IBRGZT is an 18-bit, 1-MSPS successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It features a pseudo-differential unipolar input architecture and integrates an internal reference voltage source. The device utilizes a parallel interface for data output and operates with an analog supply voltage range of 4.75 V to 5.25 V and a digital supply range of 2.7 V to 5.25 V. Key performance metrics include a signal-to-noise ratio of 95.3 dB, differential nonlinearity of ±0.5 LSB, and integral nonlinearity of ±0.65 LSB. It is housed in a 48-pin VQFN package and supports an operating temperature range from -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrates an internal reference voltage to simplify system design and reduce component count.
• Features a high-speed parallel interface compatible with standard microprocessors and DSPs.
• Delivers high precision with 18-bit resolution and low nonlinearity errors for accurate signal acquisition.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring high-resolution data acquisition.
• Medical instrumentation such as ultrasound and patient monitoring devices.
• Test and measurement equipment including oscilloscopes and spectrum analyzers.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'RGZT' confirms the tape-and-reel packaging format and the 'I' grade indicates the industrial temperature range. Confirm RoHS compliance status through the manufacturer's official documentation prior to procurement. Ensure the ordering part number matches the exact pinout and electrical specifications required for the target application design.

Analog To Digital Converters (ADC) Selection Notes

Select this component when an 18-bit resolution and 1 MSPS sampling rate are required for single-channel applications. The integrated reference makes it suitable for space-constrained designs where external reference accuracy is critical. Compare against the ADS8472 if lower resolution or different input types are acceptable, or consider the ADS8484 for higher throughput requirements.

Analog To Digital Converters (ADC) Part Context

This device belongs to the ADS848x family of high-performance SAR ADCs from Texas Instruments. It shares architectural similarities with the ADS8472 but offers higher resolution at 18 bits compared to the 16-bit ADS8472. The family is designed for applications demanding both speed and precision, utilizing a consistent parallel interface and VQFN packaging across variants.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8481IBRGZTG4 is a lead-free variant of the same functional device. The ADS8481IRGZT represents the commercial temperature grade version of the same package and specification set. Verify thermal and electrical compatibility before substituting these equivalents.