1. Overview

The AD7472 is a high-resolution, mixed-signal Analog-to-Digital Converter (ADC). It's designed for applications requiring precise signal conversion, like data acquisition systems, medical instrumentation, and industrial process control. The document provides detailed specs for the Y version.

2. Key Specs (Summarized - Y Version)

️· Resolution: 12-bit
️· Conversion Rate (Fs): Up to 1.2 MSPS (Mega Samples Per Second) @ 5V, and 875 kSPS @ 3V
️· Dynamic Performance:
- SINAD (Signal-to-Noise and Distortion): 68-69 dB
- SNR (Signal-to-Noise Ratio): 68 dB
- THD (Total Harmonic Distortion): -84 dB
- SFDR (Spurious Free Dynamic Range): -81 to -86 dB
️· Input Voltage Range: 0 to Reference Voltage (REF IN)
️· Input Capacitance: 33 pF
️· Power Supply (VDD): 2.7 V to 5.25 V
️· Differential Nonlinearity (DNL): ±2 LSB
️· Integral Nonlinearity (INL): ±0.8 LSB (typical, at 25°C)
️· Aperture Jitter: ns (typical) – This is crucial for timing accuracy in sampled signals.
️· Power Consumption: Significant, with both normal and sleep mode power usage.

3. Version Comparison (Y Version Details)

️· Temperature Range: Y Version: -40°C to +125°C (Expanded from the earlier revision's -40°C to +85°C).
️· Conversion Rate: While both versions offer fast conversion rates, specific rate varies according to the supply voltage.
️· Dynamic Performance: The provided specs focus on the Y version and mention 100kHz Sine Wave.

4. Important Notes & Considerations

️· Reference Voltage (REF IN): The ADC's performance is directly tied to the accuracy and stability of the REF IN voltage.
️· Power vs. Throughput Rate: The datasheet includes a "Power vs. Throughput Rate" section (not included in the provided snippet, but it's a vital part of the full document). Higher sampling rates consume more power.
️· Typical vs. Guaranteed: Pay close attention to the distinction between *typical* specifications (at 25°C) and *guaranteed* parameters. Typical specs indicate expected performance, while guaranteed specs are minimum or maximum values under specified conditions.
️· Full Datasheet is Key: This is an excerpt. The full datasheet contains crucial information about absolute maximum ratings, timing diagrams, application circuits, and detailed explanations of the parameters listed. Always refer to the complete datasheet for proper design and use.
️· Y Version is Focused: The specifications appear to emphasize the Y version.