ADC3443IRTQ25

Analog To Digital Converters (ADC) Overview

The ADC3443IRTQ25 is a quad-channel, 14-bit analog-to-digital converter (ADC) from Texas Instruments. It supports sampling rates up to 80 MSPS with a single 1.8-V supply. The device features a serial LVDS interface and an internal phase-locked loop (PLL) for bit clock generation. Key performance metrics include a typical SNR of 72.9 dBFS at fIN = 100 MHz and channel isolation of 105 dB. It operates within a temperature range of -40°C to +85°C and is housed in a VQFN-56 package.

Analog To Digital Converters (ADC) Feature Summary

• Quad-channel 14-bit resolution with 80 MSPS maximum sampling rate
• Serial LVDS interface with internal PLL for data serialization
• Supports multi-chip synchronization via SYSREF input
• Ultra-low power consumption: 350 mW total dissipation at 80 MSPS

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 suffix 'IRTQ25' against the manufacturer's current orderable addendum to confirm availability and exact packaging configuration. Check for any recent production change notices (PCN) that may affect assembly materials or sourcing locations. Ensure compatibility with existing system clock architectures using the flexible input clock buffer options.

Analog To Digital Converters (ADC) Selection Notes

Select the ADC3443IRTQ25 when 14-bit resolution and 80 MSPS throughput are required. Compare power dissipation (350 mW typical) against thermal constraints of the VQFN-56 package. Consider the ADC3444 if 125 MSPS speed is needed, or the ADC3441/ADC3442 for lower power at 25/50 MSPS. Verify differential input voltage requirements (2 VPP) match the signal source.

Analog To Digital Converters (ADC) Part Context

This component belongs to the ADC344x family, which includes the ADC3441, ADC3442, and ADC3444. These devices share pinout and functional similarities but differ in maximum sampling rates (25, 50, 80, and 125 MSPS respectively). The family is designed for high-linearity applications requiring low power and high dynamic range.

Analog To Digital Converters (ADC) Replacement Considerations

Direct substitutes within the same family include the ADC3441 (25 MSPS), ADC3442 (50 MSPS), and ADC3444 (125 MSPS). Pin-to-pin compatibility exists across the ADC344x series. For 12-bit alternatives, consider the ADC342x series, though interface and performance characteristics will differ.