DC2581A-A - LTC2341-18 Demo Board | Dual, 18-Bit, 666ksps Differential ±5V Input SoftSpan ADC with Wide Input Common Mode Range (req. DC590, DC2026, DC890)
Manual 
LTC2341-18 - Product Info
DC2026C - Companion Board
DC590B - Companion Board
DC890B - Companion Board
Linduino - SoftwarePScope - SoftwareQuikEval System - Software