Measurement-computing E-1608 Bedienungsanleitung PDF herunterladen (Seite 15)

E-1608 User's Guide Functional Details

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 (AOUT0 and AOUT1) can be updated simultaneously at

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 (AICKI) and one clock output (AICKO) for analog inputs.

 You can connect an external clock signal to AICKI.

 When using the internal clock, AICKO outputs the ADC scan clock.

Digital I/O

You can connect up to eight digital I/O lines to DIO0 through DIO7. Each digital channel is individually

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.

Figure 5. 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).

Pull-up/down configuration

Unconnected inputs are pulled high by default to 5 V through 47 kΩ resistors via jumper W3 on the circuit

board (see Figure 6).

W3 pull-up/pull-down jumper

Figure 6. W3 jumper location

The pull-up/pull-down voltage is common to all 47 kΩ resistors. Jumper W3 is configured by default for pull-

up.

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Measurement-computing E-1608 Bedienungsanleitung Seite 15