ADS8472IRGZT

Analog To Digital Converters (ADC) Overview

The ADS8472IRGZT is a 16-bit, 1-MSPS pseudo-bipolar, fully differential input microPOWER SAR ADC with a parallel interface and internal reference. It features ±0.75 LSB max INL and ±0.5 LSB max DNL. The device operates with an analog supply of 4.75 V to 5.25 V and a digital supply of 2.7 V to 5.25 V. Key dynamic specifications include 95 dB SNR, -120 dB THD, and 120 dB SFDR at 2 kHz. Power consumption is 225 mW at 1 MSPS. It is housed in a 48-lead 7x7 QFN package and characterized for operation from -40°C to 85°C.

Analog To Digital Converters (ADC) Feature Summary

• 16-bit resolution with 1 MSPS throughput rate
• Internal 4.096-V reference with ±6 PPM/°C drift
• Pseudo-bipolar, fully differential input architecture
• High accuracy: ±0.75 LSB max INL, ±0.5 LSB max DNL

Analog To Digital Converters (ADC) Applications

• Medical instruments
• Optical networking
• Transducer interface
• Magnetometers
• High accuracy data acquisition systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific 'I' suffix designation for linearity performance (±0.75 LSB INL) against design requirements. Confirm the 48-pin QFN thermal pad soldering requirement for proper heat dissipation. Check for RoHS compliance status as per current manufacturing updates. Ensure the internal reference buffer capacitor connections are correctly implemented if using the onboard reference.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a high-speed, high-resolution ADC with a parallel interface is required. The internal reference simplifies board layout compared to external reference designs. Consider the 2.7 V to 5.25 V digital supply range for compatibility with various logic families. The fully differential input helps reject common-mode noise in sensitive measurement applications.

Analog To Digital Converters (ADC) Part Context

The ADS8472 belongs to Texas Instruments' microPOWER sampling ADC family. It is part of a broader lineup including the ADS8471 and ADS8472IB variants, differentiated primarily by linearity specifications and input types. The IRGZT designation indicates the industrial temperature range and tape-and-reel packaging format.

Analog To Digital Converters (ADC) Replacement Considerations

ADS8472IBRGZT offers improved linearity (±0.65 LSB INL). ADS8471IRGZT provides pseudo-differential input instead of fully differential. Both share the same package and pinout but differ in electrical characteristics.