ADC3442IRTQ25

Analog To Digital Converters (ADC) Overview

The ADC3442IRTQ25 is a quad-channel, 14-bit analog-to-digital converter (ADC) from Texas Instruments. It supports sampling rates up to 50 MSPS and operates on a single 1.8-V supply. The device features a serial low-voltage differential signaling (LVDS) interface with an internal phase-locked loop (PLL) for bit clock generation. Key electrical specifications include a typical signal-to-noise ratio (SNR) of 72.9 dBFS at fIN = 20 MHz and a spurious-free dynamic range (SFDR) of 92 dBc. Power consumption is 228 mW typically at maximum sampling rate. It is housed in a VQFN-56 package.

Analog To Digital Converters (ADC) Feature Summary

• Quad-channel architecture with 14-bit resolution and 50 MSPS sampling rate
• Serial LVDS interface reducing pin count and supporting high integration density
• Internal PLL multiplies the sampling clock to derive the serialization bit clock
• Supports multi-chip synchronization via SYSREF input

Analog To Digital Converters (ADC) Applications

• Multi-carrier, multi-mode cellular base stations
• Radar and smart antenna arrays
• Software-defined radios (SDRs)
• Communications test equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix against the manufacturer's current orderable addendum to confirm availability and packaging details. Confirm that the component meets RoHS compliance requirements for the intended deployment environment. Check for any recent production change notices (PCN) regarding assembly or material changes.

Analog To Digital Converters (ADC) Selection Notes

Select this model when a 50 MSPS sampling rate is required for 14-bit performance. Compare power dissipation (228 mW typical) against thermal constraints. Ensure the system clock architecture accommodates the internal PLL multiplication factor. Verify compatibility with the serial LVDS output format if interfacing with digital signal processors or FPGAs.

Analog To Digital Converters (ADC) Part Context

This component belongs to the ADC344x family, which includes variants with different maximum sampling rates: ADC3441 (25 MSPS), ADC3443 (80 MSPS), and ADC3444 (125 MSPS). All members share the same 14-bit resolution, quad-channel structure, and VQFN-56 package footprint, allowing for pin-compatible design flexibility across speed grades.

Analog To Digital Converters (ADC) Replacement Considerations

Direct functional substitutes within the same family include the ADC3441, ADC3443, and ADC3444. These parts are pin-compatible but differ in maximum supported sampling frequencies. Ensure the replacement part's speed rating aligns with the system's clocking requirements.