ADS4128IRGZ25

Analog To Digital Converters (ADC) Overview

The ADS4128IRGZ25 is a 12-bit, 200-MSPS analog-to-digital converter (ADC) from Texas Instruments. It operates on a single 1.8-V supply and consumes 230 mW at maximum sampling rates. The device features high dynamic performance with an SNR of 69 dBFS at 170 MHz input frequency. It supports both Double Data Rate (DDR) LVDS and parallel CMOS output interfaces. Key features include programmable gain up to 6 dB, DC offset correction, and dynamic power scaling at lower sampling rates.

Analog To Digital Converters (ADC) Feature Summary

• Maximum sampling rate of 200 MSPS with ultralow power consumption of 230 mW at full speed.
• High dynamic performance: 69 dBFS SNR and 85 dBc SFDR at 170 MHz input frequency.
• Dual interface support: DDR LVDS with programmable swing/strength and standard parallel CMOS.
• Integrated fine-gain options (up to 6 dB) and DC offset correction loop for improved linearity.

Analog To Digital Converters (ADC) Applications

• Wireless communications infrastructure
• Software-defined radio systems
• Power amplifier linearization

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'RGZ25' against the manufacturer's orderable addendum to confirm package dimensions and tape/reel specifications. Confirm RoHS compliance status and check for any recent Product Change Notifications (PCN) regarding assembly sites or material changes before finalizing procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring high-speed digitization with strict power constraints. Ensure the system design accommodates the 1.8-V supply requirement and provides adequate thermal management for the VQFN-48 package. Verify that the host processor supports either the DDR LVDS or parallel CMOS interface timing requirements.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS412x family of 12-bit ADCs. It shares architectural similarities with the ADS4122, ADS4125, and ADS4126 but offers a higher 200-MSPS sampling rate compared to the 125-MSPS and 160-MSPS variants within the same series.

Analog To Digital Converters (ADC) Replacement Considerations

For direct pin-compatible replacements within the same family, consider the ADS4126 (160 MSPS) or ADS4125 (125 MSPS). Note that these alternatives offer lower sampling rates but may share similar packaging and interface configurations.