ADC3908S025IRSMR

Analog To Digital Converters (ADC) Overview

The ADC3908S025IRSMR is a single-channel, 8-bit analog-to-digital converter (ADC) from the Texas Instruments ADC3908 series. It operates at a sampling rate of 25 MSPS with a SAR architecture. The device features a 150 MHz input bandwidth and integrates an internal 1.2V reference. It supports differential or single-ended inputs with a full-scale range of 1.9 Vpp (differential) or 0.95 Vpp (single-ended). Power consumption is 40 mW at 25 MSPS, scaling down to 3 mW in power-down mode. It utilizes a parallel CMOS interface and is housed in a 32-pin VQFN package.

Analog To Digital Converters (ADC) Feature Summary

• Single-channel 8-bit resolution with 25 MSPS sampling rate
• Ultra-low latency of 1 clock cycle
• Integrated 1.2V internal reference voltage
• Low power consumption: 40 mW at 25 MSPS

Analog To Digital Converters (ADC) Applications

• Software-defined radio receivers
• Wireless communication base stations
• Instrumentation requiring low-latency signal acquisition

Analog To Digital Converters (ADC) Procurement Notes

Verify the suffix IRSMR indicates the industrial temperature range (-40°C to +105°C) and VQFN-32 package. Confirm the specific speed grade '025' corresponds to the 25 MSPS variant. Ensure compatibility with the required parallel DDR/SDR CMOS interface configuration for the target system design.

Analog To Digital Converters (ADC) Selection Notes

Select this model for applications requiring single-channel conversion at 25 MSPS. Compare with ADC3908D025 if dual-channel capability is needed. Verify that the 1.8V analog supply and optional 3.3V I/O levels match the system power rails. Check if the 150 MHz input bandwidth meets the signal frequency requirements.

Analog To Digital Converters (ADC) Part Context

This component belongs to the ADC3908 family, which includes 8-bit and 10-bit variants with speeds up to 125 MSPS. The 'S' designation denotes a single-channel device, while 'D' denotes dual-channel. The '025' suffix specifies the 25 MSPS speed bin within this high-speed, low-power ADC portfolio.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements within the same family include ADC3908S065 (65 MSPS) and ADC3908S125 (125 MSPS) for higher speed needs, or ADC3908D025 for dual-channel requirements. Cross-family replacement requires verification of interface and pinout compatibility.