ADS6145IRHBT REEL

Analog To Digital Converters (ADC) Overview

The ADS6145IRHBT is a 14-bit, high-speed analog-to-digital converter (ADC) from Texas Instruments with a maximum sampling rate of 125 MSPS. It features parallel CMOS and Double Data Rate (DDR) LVDS digital output options. The device includes an internal reference, coarse gain control up to 3.5 dB, and programmable fine gain up to 6 dB for SNR/SFDR trade-offs. It operates on a 3.3-V analog supply and a 1.8-V to 3.3-V digital supply. Key specifications include a typical SFDR of 90 dBc at 10 MHz input and 78 dBc at 170 MHz input. The component is housed in a compact 32-QFN package (5 mm × 5 mm) and supports industrial temperature ranges from -40°C to 85°C.

Analog To Digital Converters (ADC) Feature Summary

• 14-bit resolution with no missing codes and maximum sampling frequency of 125 MSPS
• Dual output interface options: Parallel CMOS and DDR LVDS
• Programmable coarse gain (up to 3.5 dB) and fine gain (up to 6 dB)
• Internal voltage reference eliminating the need for external decoupling

Analog To Digital Converters (ADC) Applications

• Radar Systems
• Wireless Communications Infrastructure
• Software Defined Radio
• Power Amplifier Linearization
• Test and Measurement Instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix 'IRHBT' corresponds to the Tape and Reel, small quantity packaging format as defined in the manufacturer's Package/Ordering Information table. Confirm that the component meets the required industrial temperature range specifications (-40°C to 85°C) for the intended deployment environment. Ensure compatibility with the 32-QFN package dimensions during PCB layout planning.

Analog To Digital Converters (ADC) Selection Notes

Select the ADS6145IRHBT when a 125 MSPS sampling rate is required alongside 14-bit resolution. Consider this model over lower-speed variants (ADS6144, ADS6143, ADS6142) if system bandwidth demands exceed 105 MSPS. Evaluate the DDR LVDS versus Parallel CMOS output requirements based on downstream receiver capabilities and trace length constraints. Verify power consumption limits against the specified 417 mW typical value at full speed.

Analog To Digital Converters (ADC) Part Context

The ADS6145 belongs to the ADS614X family of 14-bit ADCs, which also includes the ADS6144 (105 MSPS), ADS6143 (80 MSPS), and ADS6142 (65 MSPS). This family shares pin compatibility and functional similarities, allowing for design flexibility across different bandwidth requirements. The ADS614X series is designed to be pin-compatible with the 12-bit ADS612X family, facilitating migration paths between resolution tiers.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements within the same package and functionality are the ADS6144IRHBT, ADS6143IRHBT, and ADS6142IRHBT, offering lower sampling rates. For higher resolution needs, the ADS612X family provides pin-compatible 12-bit alternatives.