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Reference Design
ADS9120
SBAS710A – SEPTEMBER 2016 – REVISED JUNE 2017
ADS9120 16-Bit, 2.5-MSPS, 15.5-mW, SAR ADC With Enhanced Performance Features
1 Features
•1 Sample Rate: 2.5 MSPS • No Latency Output • Excellent DC and AC Performance:
– INL: ±0.25 LSB – DNL: ±0.6 LSB – SNR: 96 dB, THD: –118 dB • Wide Input Range: – Unipolar Differential Input Range: ±VREF – VREF Input Range: 2.5 V to 5 V,
Independent of AVDD • Low-Power Dissipation:
– 9 mW at 2.5 MSPS (AVDD Only) – 15.5 mW at 2.5 MSPS (Total) – Flexible Low-Power Modes Enable Power
Scaling with Throughput • Enhanced-SPI (multiSPI™) Digital Interface • JESD8-7A-Compliant Digital I/O at 1.