ADC3683IRSBR

Analog To Digital Converters (ADC) Overview

The ADC3683IRSBR is a dual-channel, 18-bit analog-to-digital converter (ADC) from Texas Instruments operating at a maximum sampling rate of 65 MSPS. It features a noise spectral density of -160 dBFS/Hz and supports an input bandwidth of 900 MHz (-3dB). The device utilizes a serial LVDS interface and operates on 1.8V analog and digital supplies within an industrial temperature range of -40°C to +105°C. Power consumption scales with the sampling rate, reaching 94 mW per channel at 65 MSPS. Key specifications include typical INL/DNL values of ±7/±0.7 LSB and latency as low as one clock cycle.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel architecture with 18-bit resolution and no missing codes
• Ultra-low noise performance with -160 dBFS/Hz noise floor
• Integrated on-chip digital filter with decimation options up to 32x
• Serial LVDS interface supporting multiple lane configurations

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix against the manufacturer's current orderable addendum to confirm package type and reel specifications. Ensure compatibility with required voltage references and clocking schemes before finalizing procurement. Cross-reference the datasheet revision history for any updates to electrical characteristics or pin definitions that may impact system integration.

Analog To Digital Converters (ADC) Selection Notes

Select this component when high dynamic range and low noise are critical for dual-channel applications. Consider the ADC3682 or ADC3681 if lower sampling rates suffice, as they offer pin-compatible alternatives with reduced power consumption. Evaluate the need for internal versus external voltage references based on system noise requirements and board space constraints.

Analog To Digital Converters (ADC) Part Context

The ADC3683 belongs to the ADC368x family of low-noise, ultra-low power dual-channel ADCs. This series includes variants with different speed grades, such as the 10 MSPS ADC3681 and 25 MSPS ADC3682. All members share a common 40-pin QFN footprint and support similar interface options, facilitating design scalability across different performance tiers.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible substitutes within the same family include the ADC3682 and ADC3681. These parts offer identical packaging and interface capabilities but operate at lower maximum sampling rates of 25 MSPS and 10 MSPS, respectively.