ADS6445IRGC25

Analog To Digital Converters (ADC) Overview

The ADS6445IRGC25 is a quad-channel, 14-bit analog-to-digital converter (ADC) from Texas Instruments. It supports a maximum sampling rate of 125 MSPS with no missing codes. The device features serialized LVDS outputs to reduce interface lines, housed in a compact 64-pin QFN package (9 mm x 9 mm). It operates on 3.3-V analog and digital supplies and includes an internal reference source requiring no external decoupling. Key performance metrics at Fs = 125 MSPS include a typical SFDR of 87 dBc at 10 MHz input and 79 dBc at 170 MHz input with 3.5 dB coarse gain.

Analog To Digital Converters (ADC) Feature Summary

• Quad-channel architecture with simultaneous sample and hold capability
• Serialized LVDS outputs with programmable internal termination options
• 3.5 dB coarse gain and up to 6 dB programmable fine gain for SFDR/SNR trade-off
• Internal phase lock loop (PLL) for bit clock derivation

Analog To Digital Converters (ADC) Applications

• Base-station IF receivers
• Diversity receivers
• Medical imaging systems
• Test equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix against the manufacturer's current Package Option Addendum. Datasheet documentation lists IRGCT and IRGCR variants; confirm that the IRGC25 designation corresponds to the intended transport media and quantity specifications before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component for high-density applications requiring four independent 14-bit channels. Ensure the system design accommodates the 3.3-V supply requirement and utilizes the serialized LVDS interface to minimize PCB trace count. Consider the 12-clock latency when designing data capture logic.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS644X family, which shares pin compatibility with the 12-bit ADS624X series. The ADS6445 represents the highest speed variant in the group, offering 125 MSPS compared to the 105 MSPS of the ADS6444, 80 MSPS of the ADS6443, and 65 MSPS of the ADS6442.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible alternatives within the same package include the ADS6444, ADS6443, and ADS6442. These devices offer lower maximum sampling rates but maintain the same 14-bit resolution and interface characteristics.