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Reference Design
ADS8664, ADS8668
SBAS492 – JULY 2015
ADS866x 12-Bit, 500-kSPS, 4- and 8-Channel, Single-Supply, SAR ADCs with Bipolar Input Ranges
Additional Channels in ADS8668
Multiplexer
Gain (% FS)
1 Features
•1 12-Bit ADCs with Integrated Analog Front-End • 4-, 8-Channel MUX with Auto and Manual Scan • Channel-Independent Programmable Inputs:
– ±10.
24 V, ±5.
12 V, ±2.
56 V, ±1.
28 V, ±0.
64 V – 10.
24 V, 5.
12 V, 2.
56 V, 1.
28 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 with Low Drif...