Analog output, External clock i/o – Measurement Computing USB-1208HS-4AO User Manual

Page 12

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USB-1208HS-4AO User's Guide

Functional Details

12

Figure 5 depicts a voltage source connected to a USB-1208HS-4AO configured for SE mode.

Figure 5. Single-ended measurement connection

Figure 6 depicts a Wheatstone bridge signal source connected to a USB-1208HS-4AO configured for DIFF
mode.

Figure 6. Differential measurement connection

For more information on analog signal connections

For more information on single-ended inputs, refer to the Guide to DAQ Signal Connections (this document is
available on our web site at

www.mccdaq.com/signals/signals.pdf

).

Analog output

You can connect up to four analog output connections to screw terminals

AOUT0

to

AOUT3

. Refer to Figure 4

and Figure 3 on page 10 for the location of these pins.

Each channel can be software-paced at rates up to 5,000 updates per second (system-dependent), or hardware-
paced at rates up to 1 MS/s.

Each analog output on the USB-1208HS-4AO has a fixed ±10 V output range. The outputs default to 0 V at
power up.

External clock I/O

The USB-1208HS-4AO device provides one external clock input (

AICKI

) and one external clock output

(

AICKO

) for analog inputs, and one external clock input (

AOCKI

) and one external clock output (

AOCKO

) for

analog outputs.

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