ADC3541IRSBT

Analog To Digital Converters (ADC) Overview

The Texas Instruments ADC3541IRSBT is a 14-bit, 10-MSPS analog-to-digital converter (ADC) designed for low-noise and ultra-low power applications. It operates on a single 1.8-V supply and delivers a noise spectral density of –155 dBFS/Hz with a latency of one clock cycle. The device features an input bandwidth of 900 MHz and supports external or internal voltage references. DC accuracy includes an INL of ±0.6 LSB and DNL of ±0.1 LSB. Power consumption scales from 35 mW at 10 MSPS to 84 mW at 65 MSPS. It is housed in a 40-WQFN package measuring 5 mm × 5 mm and supports industrial temperature ranges from –40°C to +105°C.

Analog To Digital Converters (ADC) Feature Summary

• 14-bit resolution with 10 MSPS sampling rate and 900 MHz analog input bandwidth
• Ultra-low power consumption: 35 mW at 10 MSPS, scaling up to 84 mW at 65 MSPS
• High precision with INL ±0.6 LSB, DNL ±0.1 LSB, and SNR of 79.0 dBFS at 10 MHz input
• Integrated digital downconverter with optional decimation by 2, 4, 8, 16, or 32

Analog To Digital Converters (ADC) Applications

• High-speed data acquisition systems
• Industrial monitoring and instrumentation
• Thermal imaging and sonar applications
• Software defined radio (SDR)
• Communications infrastructure and radar

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific IR suffix indicates the industrial temperature grade (-40°C to +105°C) and RSB package type (40-WQFN). Confirm that the ordering part number matches the exact speed grade required, as the ADC354x family shares pinouts but varies in maximum sampling rates. Ensure compatibility with the 1.8-V supply requirement for both analog and digital domains.

Analog To Digital Converters (ADC) Selection Notes

Select the ADC3541 when a fixed 10 MSPS sampling rate is sufficient, offering the lowest power consumption within the family. Choose higher speed variants like the ADC3542 (25 MSPS) or ADC3543 (65 MSPS) only if higher throughput is necessary, noting the associated increase in power dissipation. Consider the integrated digital filter if complex decimation or NCO functionality is needed to reduce downstream processing load.

Analog To Digital Converters (ADC) Part Context

The ADC3541 is part of the ADC354x family, which includes the ADC3542 and ADC3543. These devices are pin-to-pin compatible and share the same 40-WQFN package and interface options. The primary distinction between the models is their maximum sampling rate capability, allowing designers to scale performance while maintaining board layout consistency across different product tiers.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements within the same family include the ADC3542 and ADC3543, provided the application can accommodate the higher sampling rates and power consumption. Other Texas Instruments high-speed ADCs may require significant schematic and layout redesign due to differences in interface types, voltage levels, and pin configurations.