ADC3908D025IRSMR

Analog To Digital Converters (ADC) Overview

The ADC3908D025IRSMR is an 8-bit, dual-channel successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It supports a sampling rate of 25 MSPS with a latency of only one clock cycle. The device operates on a single +1.8V analog supply and features a configurable +1.8V or +3.3V digital I/O interface. Key performance metrics include a signal-to-noise ratio (SNR) of 49.8 dBFS at 125 MSPS reference conditions and an input bandwidth of 150 MHz (-3dB). It is housed in a 32-pin VQFN package measuring 4mm x 4mm.

Analog To Digital Converters (ADC) Feature Summary

• Ultra-low power consumption: 56mW at 25 MSPS for the dual-channel variant.
• Minimal latency: 1-clock-cycle delay suitable for high-speed control loops.
• Flexible input configuration: Supports buffered, differential, or single-ended inputs.
• Integrated internal voltage reference and programmable gain amplifier.

Analog To Digital Converters (ADC) Applications

• Low-latency control loop systems
• Laser scanners
• Displacement sensors
• Test and measurement equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'IRSMR' against official Texas Instruments documentation to confirm the tape-and-reel packaging quantity and moisture sensitivity level. Ensure the design accounts for the -40°C to +105°C industrial temperature range specified for this component series.

Analog To Digital Converters (ADC) Selection Notes

Select the ADC3908D025 variant specifically for 25 MSPS operation requirements. For higher speed needs, consider the ADC3908D065 (65 MSPS) or ADC3908D125 (125 MSPS) within the same pin-compatible family. Verify that the system requires the dual-channel architecture rather than the single-channel ADC3908Sx series.

Analog To Digital Converters (ADC) Part Context

This component belongs to the ADC3908Dx/Sx family of ultra-low-power, 8-bit high-speed ADCs. The family shares a common 32-pin VQFN footprint and integrates internal references. Variants are distinguished primarily by their maximum sampling rates (25, 65, and 125 MSPS) and channel count (dual vs. single).

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible alternatives within the same family include ADC3908D065 and ADC3908D125 for higher sampling rates. Single-channel equivalents are available as ADC3908S025, ADC3908S065, and ADC3908S125.