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19-1481; Rev 0; 4/99
KIT ATION EVALU E L B A AVAIL
+3V, 18-Bit, Low-Power, Multichannel, Oversampling (Sigma-Delta) ADC
General Description Features
o 18-Bit Resolution, Sigma-Delta ADC o 16-Bit Accuracy with No Missing Codes to 480sps o Matched On-Board Current Sources (200µA) for Sensor Excitation o Low Quiescent Current 250µA (operating mode) 2µA (power-down mode) o 3 Fully Differential or 5 Pseudo-Differential Signal Input Channels o 2 Additional, Fully Differential Calibration Channels/Auxiliary Input Channels o Programmable Gain and Offset o Fully Differential Reference Inputs o Converts Continuously or On Command o Automatic Channel Scanning and Continuous Data Output Mode o Operates with Analog and Digital Supplies from +2.7V to +3.