ADC3544IRSBT

Analog To Digital Converters (ADC) Overview

The ADC3544IRSBT is a single-channel, 14-bit analog-to-digital converter operating at sampling rates up to 125 MSPS. It features an ultra-low noise floor of –153 dBFS/Hz and consumes 97 mW per channel at maximum speed. The device utilizes a pipeline architecture with a latency of one clock cycle. It supports both external and internal voltage references and operates on a single 1.8-V supply. The component provides SDR, DDR, and Serial CMOS digital interfaces and includes an optional on-chip digital downconverter for decimation by factors of 2, 4, 8, 16, or 32. It is housed in a 40-WQFN package and functions within an industrial temperature range of –40°C to +105°C.

Analog To Digital Converters (ADC) Feature Summary

• Ultra-low power consumption with optimized scaling capabilities across varying sampling rates.
• Integrated on-chip digital filter supporting multiple decimation ratios and a 32-bit NCO.
• Minimal signal processing latency provided by a one-clock-cycle pipeline architecture.
• Flexible digital output interface options including SDR, DDR, and serial CMOS modes.

Analog To Digital Converters (ADC) Applications

• Software defined radio
• High-speed data acquisition
• Industrial monitoring
• Radar systems
• Communications infrastructure

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'RSBT' against the manufacturer's official documentation to confirm the exact reel packaging quantity and tape-and-reel specifications. Ensure that the ordering information matches the current datasheet revision to avoid discrepancies in package dimensions or thermal characteristics.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a high-speed, low-power solution with minimal latency is required. The integrated digital downconverter allows for relaxed external anti-aliasing filter requirements. Verify that the system can support the required 1.8-V supply rails and that the chosen digital interface mode aligns with the downstream FPGA or processor capabilities.

Analog To Digital Converters (ADC) Part Context

The ADC3544 belongs to a family of pin-to-pin compatible devices that vary primarily by maximum sampling rate. Other members include the ADC3541 (10 MSPS), ADC3542 (25 MSPS), and ADC3543 (65 MSPS). This specific model represents the highest performance tier within the series, designed for demanding applications requiring 125 MSPS throughput.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible alternatives within the same family include the ADC3541, ADC3542, and ADC3543. These parts offer lower maximum sampling rates but maintain identical pinouts and functional block diagrams. Verify that the reduced bandwidth of these substitutes meets the specific Nyquist requirements of the application.

Analog To Digital Converters (ADC) FAQ

What are the supported sampling rate ranges for internal versus external references?

When using an external reference, the ADC3544 supports sampling rates from 10 MSPS to 125 MSPS. When utilizing the internal reference, the supported range is restricted to 100 MSPS to 125 MSPS.

How does the device handle analog input common-mode voltage?

The analog inputs require an external common-mode voltage of 0.95 V. The device provides a dedicated VCM output pin to generate this voltage, which must be connected to the analog input pins.

What decimation factors are available via the on-chip digital filter?

The optional on-chip digital downconverter supports real or complex decimation by factors of 2, 4, 8, 16, and 32.