ADS4146IRGZ25

Analog To Digital Converters (ADC) Overview

The ADS4146IRGZ25 is a 14-bit, 160MSPS analog-to-digital converter (ADC) from Texas Instruments. It operates on a single 1.8V supply, consuming 265mW 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 electrical specifications include a typical Signal-to-Noise Ratio (SNR) of 70.8dBFS at 170MHz input frequency and a Spurious-Free Dynamic Range (SFDR) of 82dBc. It includes programmable gain up to 6dB and a DC offset correction loop.

Analog To Digital Converters (ADC) Feature Summary

• 14-bit resolution with a maximum sampling rate of 160MSPS
• Ultralow power consumption: 265mW total power at 160MSPS with 1.8V supply
• High dynamic performance: 70.8dBFS SNR and 82dBc SFDR at 170MHz input
• Dual interface support: DDR LVDS with programmable swing/strength and standard parallel CMOS

Analog To Digital Converters (ADC) Applications

• Multi-carrier, wide bandwidth communications systems
• Software-defined radio (SDR)
• Test and measurement equipment requiring high dynamic range

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation. Datasheet records indicate 'RGZ' as the package designator for the QFN-48 form factor. Confirm availability status and lead times through authorized distribution channels, as production data currency varies by region.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring 14-bit precision at 160MSPS with strict power constraints. Ensure the system clock amplitude meets the specified differential requirements (e.g., 0.2VPP to 1.5VPP sine wave). Consider the LVDS interface for noise immunity or CMOS for simpler board routing, noting that DRVDD current scales with load capacitance in CMOS mode.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS412x/4x family, which shares pin compatibility with the previous generation ADS6149 family to facilitate migration. Unlike the ADS6149, the ADS414x series utilizes a 1.8V analog supply (AVDD) instead of 3.3V and does not support external reference modes. Pin 23 is reserved for future functions.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS4149 serves as a higher-speed variant within the same family, offering 250MSPS sampling rate while maintaining pin compatibility. For 12-bit resolution requirements, the ADS4126 provides equivalent speed and power characteristics.