ADS61B29IRGZT

Analog To Digital Converters (ADC) Overview

The ADS61B29IRGZT is a single-channel, 14-bit analog-to-digital converter (ADC) from Texas Instruments. It operates at a sampling rate of 250 MSPS and utilizes a pipeline architecture. The device features differential inputs and supports parallel CMOS or LVDS output interfaces. Power requirements include a 3.3 V analog supply and a digital supply ranging from 1.7 V to 1.9 V. Key performance metrics include a signal-to-noise ratio (SNR) of 72.2 dB and an effective number of bits (ENOB) of 11.7 bits. Differential nonlinearity (DNL) and integral nonlinearity (INL) are specified at +/- 0.95 LSB and +/- 1 LSB respectively. The component is housed in a VQFN-48 package and functions within a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• High-resolution 14-bit data conversion capability with a 250 MSPS sampling rate for precise signal digitization.
• Low power consumption design optimized for energy-efficient applications without compromising performance.
• Flexible interface options supporting both parallel CMOS and low-voltage differential signaling (LVDS) outputs.

Analog To Digital Converters (ADC) Applications

• Software-defined radio systems requiring high dynamic range and fast sampling speeds.
• Test and measurement equipment needing accurate waveform capture and analysis.
• Medical imaging systems utilizing ultrasound or other modalities requiring high-fidelity signal acquisition.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix to ensure the correct packaging format, as 'T' indicates cut tape while 'R' denotes reel packaging. Confirm that the voltage levels match your system's power rails, particularly the 1.7 V to 1.9 V digital supply requirement. Ensure ESD precautions are observed during handling due to the sensitivity of the CMOS input structures.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a balance between high resolution and moderate speed is required. Compare against the ADS4149 if lower power is critical, noting its 265 mW consumption versus the higher power draw of the ADS61B29. Consider the ADS6128 if 12-bit resolution suffices, as it offers a different power-performance trade-off. Verify board space constraints against the VQFN-48 footprint availability.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS61Bxx family of high-performance ADCs designed for demanding RF and baseband applications. It shares the VQFN-48 package form factor with other devices in the series, facilitating potential layout reuse across designs. The family targets applications where linearity and noise performance are paramount, serving as a bridge between lower-speed precision converters and ultra-high-speed solutions.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS4149IRGZT is a verified substitute within the same manufacturer portfolio, offering similar 14-bit resolution and 250 MSPS speed with lower power consumption. Check pin compatibility and register settings when migrating, as interface configurations may differ slightly between the B-series and standard ADS4149 variants.