ADC3681IRSBR

Analog To Digital Converters (ADC) Overview

The ADC3681IRSBR is a dual-channel, 18-bit analog-to-digital converter operating at a fixed sampling rate of 10 MSPS. It features a noise spectral density of -151.7 dBFS/Hz and an input bandwidth of 900 MHz. The device supports external or internal voltage references and utilizes a serial LVDS interface with latency as low as one clock cycle. Power consumption scales from 106 mW to 166 mW per channel depending on the interface configuration. It operates within an industrial temperature range of -40°C to +105°C and is housed in a 40-pin QFN package measuring 5 mm by 5 mm.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel architecture providing independent signal acquisition paths
• Ultra-low power consumption with optimized scaling across sampling rates
• Integrated on-chip digital filter supporting multiple decimation ratios
• Serial LVDS interface minimizing digital interconnect complexity

Analog To Digital Converters (ADC) Applications

• High-speed data acquisition systems
• Industrial monitoring equipment
• Software-defined radio infrastructure
• Power quality analyzers
• Radar and spectroscopy instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the complete part number against official Texas Instruments documentation to ensure correct suffix alignment. Confirm that the specific ordering code matches the required package variant and temperature grade. Cross-reference the datasheet revision history for any updates regarding pin configurations or electrical characteristics prior to final procurement decisions.

Analog To Digital Converters (ADC) Selection Notes

Select this component when high-resolution 18-bit conversion is required alongside low noise performance at moderate sampling speeds. Consider the ADC3682 or ADC3683 if higher throughput is necessary, as they share pin compatibility. Evaluate the available decimation options and interface lane configurations to optimize system power consumption and board space requirements effectively.

Analog To Digital Converters (ADC) Part Context

This device belongs to the ADC368x family, which includes variants with different maximum sampling rates but identical pinouts. The series is designed for applications demanding excellent linearity and dynamic range. All members support the same 40-pin QFN footprint and operate under similar power supply conditions, facilitating straightforward design upgrades within the same product ecosystem.

Analog To Digital Converters (ADC) Replacement Considerations

The ADC3682 and ADC3683 are pin-compatible alternatives offering higher sampling rates of 25 MSPS and 65 MSPS respectively. These devices maintain the same 18-bit resolution and package dimensions, allowing for direct substitution in designs requiring increased throughput without layout modifications.