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Reference Design
ADS8684, ADS8688
SBAS582C – JULY 2014 – REVISED APRIL 2015
ADS868x 16-Bit, 500-kSPS, 4- and 8-Channel, Single-Supply, SAR ADCs with Bipolar Input Ranges
Additional Channels in ADS8688
Multiplexer Gain (%FS)
1 Features
•1 16-Bit ADCs with Integrated Analog Front-End • 4-, 8-Channel MUX with Auto and Manual Scan • Channel-Independent Programmable Input
Ranges: – Bipolar: ±10.
24 V, ±5.
12 V, ±2.
56 V – Unipolar: 10.
24 V, 5.
12 V • 5-V Analog Supply: 1.
65-V to 5-V I/O Supply • Constant Resistive Input Impedance: 1 MΩ • Input Over
voltage Protection: Up to ±20 V • On-Chip, 4.
096-V Reference w...