Analog Output; External Clock I/O; Digital I/O - Measurement Computing E-1608 User Manual

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E-1608 User's Guide

Analog output

Two 16-bit analog outputs are available at AOUT0 and AOUT1.
Each analog output channel has an output range of ±10 V. Throughput is system-dependent.
The D/A is software-paced. Each 16-bit analog output (
rates from 1000 S/s to 5000 S/s. This is the typical throughput when the device and host are both hard-wired to
the same local network. Typical throughput is not guaranteed if a wireless connection is involved or data is sent
over the Internet.

External clock I/O

The E-1608 provides one external clock input (

You can connect an external clock signal to

When using the internal 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 and offer .
advanced BiCMOS output.
Refer to the schematic shown in Figure 5.
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).
Pull-up/down configuration
Unconnected inputs are pulled high by default to 5 V through 47 kΩ resistors via jumper
board (see Figure 6).
The pull-up/pull-down voltage is common to all 47 kΩ resistors. Jumper W3 is configured by default for pull-
up.
outputs the ADC scan clock.
AICKO
Figure 5. Schematic showing switch detection by digital channel DIO0
1 W3 pull-up/pull-down jumper
Figure 6. W3 jumper location
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and
AOUT0 AOUT1
) and one clock output (
AICKI
.
AICKI
DIO0 through DIO7 . Each digital channel is individually
15
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Functional Details
) can be updated simultaneously at
) for analog inputs.
AICKO
on the circuit
W3