ADC34J42IRGZ25

Analog To Digital Converters (ADC) Overview

The ADC34J42IRGZ25 is a quad-channel, 14-bit analog-to-digital converter (ADC) from Texas Instruments. It operates at sampling rates up to 50 MSPS with a single 1.8-V supply. The device features a JESD204B serial interface supporting Subclass 0, 1, and 2, enabling multi-chip synchronization via SYSREF. Key electrical specifications include a typical Signal-to-Noise Ratio (SNR) of 72.4 dBFS at fIN = 10 MHz and a Spurious-Free Dynamic Range (SFDR) of 93 dBc. Power consumption is typically 584 mW at maximum sampling rate. It is housed in a VQFN-48 package measuring 7 mm × 7 mm.

Analog To Digital Converters (ADC) Feature Summary

• Quad-channel 14-bit resolution with 50 MSPS maximum sampling rate
• JESD204B serial interface supporting Subclass 0, 1, and 2
• Ultra-low power consumption: 584 mW total dissipation at 50 MSPS
• Internal dither for improved SFDR and channel isolation of 105 dB

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 package type and tape/reel specifications. Confirm that the component status aligns with long-term availability requirements, as production data status may change. Ensure compatibility with existing system clock architectures utilizing the divide-by-1, -2, or -4 options.

Analog To Digital Converters (ADC) Selection Notes

Select the ADC34J42IRGZ25 when a 50 MSPS sampling rate is sufficient for the application bandwidth. This model provides the lowest power consumption within the ADC34J4x family compared to higher-speed variants like the ADC34J43 or ADC34J44. Ensure the design supports the required JESD204B lane configuration and SYSREF distribution for multi-device synchronization.

Analog To Digital Converters (ADC) Part Context

This component belongs to the ADC34J4x family, which includes the ADC34J43, ADC34J44, and ADC34J45. These devices share pinout compatibility and architectural features but differ primarily in their maximum sampling rates, ranging from 50 MSPS to 160 MSPS. The ADC34J42 represents the entry-level speed option in this high-linearity, ultra-low power series.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible substitutes within the same family include the ADC34J43IRGZ25 (80 MSPS), ADC34J44IRGZ25 (125 MSPS), and ADC34J45IRGZ25 (160 MSPS). Higher-speed variants can replace the ADC34J42 if increased sampling performance is desired without PCB layout changes.