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Chapter 1
Introducing the USB-1808X-OEM
The USB-1808X-OEM is a multifunction data acquisition device providing the following features:
Eight 18-bit simultaneous-sampling differential (DIFF) or single-ended (SE) analog input channels –
software-selectable per channel as DIFF or SE
Sample rate of 200 kS/s per channel maximum
Analog input ranges of ±10 V, ±5 V, 0 V to 10 V, and 0 V to 5 V – software-selectable per channel
Two 16-bit analog outputs
Four individually-configurable digital I/O channels
Two high-speed general-purpose counters
Two quadrature encoder inputs
Two timer outputs
One external digital trigger for data acquisition and one external digital trigger for data generation
Two external clock inputs and two clock outputs for synchronous input and output operations with more
than one device.
Header connectors for field wiring connections
The device is powered by the +5 V USB supply from the computer, requiring no external power.
The USB-1808X-OEM is a USB 2.0 high-speed device that is fully compatible with both USB 1.1, USB 2.0,
and USB 3.0 ports.
Functional block diagram
USB-1808X-OEM functions are illustrated in the block diagram shown here.
Figure 1. Functional block diagram
