PCM1750UG4

ADCs/DACs - Special Purpose Overview

The PCM1750UG4 is a dual 18-bit CMOS analog-to-digital converter designed for dynamic signal applications. It features true co-phased inputs with an internal sample/hold function for each channel and includes an integrated band-gap reference. The device operates on ±5V analog supplies and +5V digital supply, dissipating a maximum of 300mW. Key electrical specifications include a minimum conversion time of 4.5μs, a typical Signal-to-Noise Ratio of 90dB, and a Total Harmonic Distortion plus Noise (THD+N) of –88dB without external adjustments. It supports 4X oversampling rates per channel to relax anti-aliasing filter requirements.

ADCs/DACs - Special Purpose Feature Summary

• Dual 18-bit resolution with simultaneous co-phased sampling for left and right channels
• Integrated internal reference voltage and dual sample/hold circuits
• Low power consumption: 300mW maximum at ±5V supplies
• High performance metrics: 90dB SNR and –88dB THD+N

ADCs/DACs - Special Purpose Applications

• Digital audio recording systems
• Professional audio mixing consoles
• Dynamic signal processing equipment

ADCs/DACs - Special Purpose Procurement Notes

Verify the package type matches the 'U' suffix designation as a 28-pin Plastic SOIC. Confirm that the specific revision level meets the design requirements, as older Burr-Brown components may have limited production availability compared to modern equivalents.

ADCs/DACs - Special Purpose Selection Notes

Select this component when a dual-channel 18-bit ADC with low power dissipation is required. Ensure the system can provide ±5V analog and +5V digital supplies. The 4X oversampling capability allows for simpler external anti-aliasing filters compared to 1X systems.

ADCs/DACs - Special Purpose Part Context

This part belongs to the PCM1750 family manufactured by Burr-Brown, now part of Texas Instruments. It is a monolithic CMOS A/D converter optimized for audio bandwidth applications, distinct from higher-resolution 24-bit models in the same product line.

ADCs/DACs - Special Purpose Replacement Considerations

Check for direct pin-compatible successors within the Burr-Brown or Texas Instruments portfolio. Verify if newer generation audio ADCs offer improved dynamic range while maintaining the same supply voltage and interface timing requirements.