Analog Output; External Clock I/O; Digital I/O - Measurement Computing USB-1608GX-AO User Manual

USB-1608GX-2AO User's Guide
An example of a 4-element list is shown in the table below.
Carefully match the gain to the expected voltage range on the associated channel or an over range condition
may occur. Although this condition does not damage the device, it does produce a useless full-scale reading,
and can introduce a long recovery time due to saturation of the input channel.
For more information about analog signal connections
For more information about analog input connections, refer to the Guide to DAQ Signal Connections on our
website at www.mccdaq.com/support/DAQ-Signal-Connections.aspx.

Analog output

The two 16-bit analog outputs (
channel. One output can be updated at a rate of 500 kS/s. The output range is fixed at ±10 V. The outputs
default to 0 V when the host computer is shut down or suspended, or when a reset command is issued to the
device.

External clock I/O

The device has one external clock input (
one external clock input (
You can connect an external clock signal to

When using an external clock,
pulse generated from
When using the internal clock,

clock.

Digital I/O

You can connect up to eight digital I/O lines to
configurable for input or output. The digital I/O terminals can detect the state of any TTL-level input. Refer to
the schematic shown in Figure 7.
Figure 7. Schematic showing switch detection by digital channel DIO0
If you set the switch to the +5 V input, DIO0 reads TRUE (1). If you move the switch to GND, DIO0 reads
FALSE (0).
Sample channel-gain queue list
Element Channel
0 CH5
1 CH1
2 CH15
3 CH5
and
AOUT0 AOUT1
) and one external clock output (
AICKI
) and one external clock output (
AOCKI
AICKI
outputs the pulse generated from
AICKO
.
AOCKI
outputs the ADC scan clock, and
AICKO
DIO0
Range Mode
BIP5V SE
BIP10V DIFF
BIP1V SE
BIP5V SE
) can be updated simultaneously at a rate of 250 kS/s per
) for analog outputs.
AOCKO
and/or .
AOCKI
AICKI
through . Each digital channel is individually
DIO7
12
Functional Details
) for analog inputs, and
AICKO
, and pin outputs the
AOCKO
outputs the DAC scan
AOCKO