ADS4126IRGZ25

Analog To Digital Converters (ADC) Overview

The ADS4126IRGZ25 is a 12-bit, 160MSPS analog-to-digital converter (ADC) from Texas Instruments. It operates on a single 1.8V supply, consuming 201mW at maximum sampling rate. The device features a differential analog input and supports both Double Data Rate (DDR) LVDS and parallel CMOS digital output interfaces. Key performance metrics include an SNR of 70.6dBFS and SFDR of 84dBc at 170MHz input frequency. It includes programmable gain up to 6dB, DC offset correction, and dynamic power scaling capabilities.

Analog To Digital Converters (ADC) Feature Summary

• Maximum sampling rate of 160MSPS with ultralow power consumption (201mW at 160MSPS).
• High dynamic performance: 70.6dBFS SNR and 84dBc SFDR at 170MHz input frequency.
• Flexible output interface supporting DDR LVDS with programmable swing/strength or standard parallel CMOS.
• Integrated DC offset correction loop and programmable gain up to 6dB for SNR/SFDR optimization.

Analog To Digital Converters (ADC) Applications

• Multi-carrier, wide bandwidth communications systems.
• Test and measurement equipment requiring high dynamic range.
• Instrumentation applications needing low-power, high-speed data acquisition.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation. Datasheet records indicate 'RGZR' (Tape & Reel, 2500 units) and 'RGZT' (Tape & Reel, 250 units) as standard packaging options. Confirm availability status as product lifecycle changes may affect stock.

Analog To Digital Converters (ADC) Selection Notes

Select this model for designs requiring 12-bit resolution at 160MSPS with minimal power budget. Ensure the system clock amplitude meets the specified differential requirements (e.g., 0.2–1.5 VPP sine wave). Choose between LVDS or CMOS outputs based on downstream receiver compatibility and termination requirements.

Analog To Digital Converters (ADC) Part Context

The ADS4126 belongs to the ADS412x/4x family, which shares pinout compatibility with the previous generation ADS6149 family to facilitate migration. However, supply voltages differ; the ADS4126 uses a 1.8V AVDD compared to the 3.3V AVDD in the older ADS6149 series.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS4129 serves as the 250MSPS variant within the same family. For direct architectural migration from legacy parts, the ADS6149 family is pin-compatible but requires voltage level adjustments.