7
ADA16-8/2(LPCI)L, AD16-16(LPCI)L, DA16-4(LPCI)L
Ver.1.00
Analog Signal Connection
Analog signal input types are divided into single-ended input and
differential input. This board uses single-ended input fixed. The
following examples show how to connect analog input signals using a
flat cable and a shielded cable.
The following figure shows an example of flat cable connection.
Connect separate signal and ground wires for each analog input
channel on CN1.
Analog Output Signal Connection
This section shows how to connect the analog output signal by using
a flat cable or a shielded cable.
The following figure shows an example of flat cable connection.
Connect the signal source and ground to the CN1 analog output.
Control signals Connection
The following sections show examples of how to connect digital I/O
signals, counter I/O signals, and other control I/O signals (external
trigger input signals, sampling clock input signals, etc.).
All the digital I/O signals and control signals are TTL level signals.
Digital Input Connection
10k
Ω
Digital Input
Digital Ground
BOARD
CN1
Cable
Target
Digital Output Connection
Digital Ground
BOARD
CN2
Cable
Target
Digital Output
I
OL
=24mA
Do not short the output signals to analog ground, digital ground,
and/or power line. Doing so may damage the board.
Digital I/O signals, Counter signals and
Analog Input 0..15*1
Analog Ground
BOARD
CN1
Cable
Signal Source
The following figure shows an example of shield cable connection.
Use shielded cable if the distance between the signal source and board
is long or if you want to provide better protection from noise. For
each analog input channel on CN1, connect the core wire to the signal
line and connect the shielding to ground.
Analog Ground
Shield cable
Analog Input 0..15*1
BOARD
CN1
Signal Source
*1
The number of channels depends on each board.
The ADA16-8/2(LPCI)L has eight channels; the AD16-16(LPCI)L
has 16 channels; the DA16-4(LPCI)L has no channel.
- If the signal source contains over 1MHz signals, the signal may
effect the cross-talk noise between channels.
- If the board and the signal source receive noise or the distance
between the board and the signal source is too long, data may not
be input properly.
- An input analog signal should not exceed the maximum input
voltage (relate to the board analog ground). If it exceeds the
maximum voltage, the board may be damaged.
- Connect all the unused analog input channels to analog ground.
- The signal connected to an input channel may fluctuate after
switching of the multiplexer. If this occurs, shorten the cable
between the signal source and the analog input board or insert a
high-speed amplifier as a buffer between the two to reduce the
fluctuation.
Analog Output 0..3*2
Analog Ground
BOARD
CN1
Cable
Target
The following figure shows an example of shield cable connection.
Use shielded cable if the distance between the signal source and board
is long or if you want to provide better protection from noise. For
each analog input channel on CN1, connect the core wire to the signal
line and connect the shielding to ground.
Analog Ground
Shield cable
Analog Output 0..3*2
BOARD
CN1
Target
*2 The number of channels depends on each board.
The ADA16-8/2(LPCI)L has two channels; the AD16-16(LPCI)L
has no channel; the DA16-4(LPCI)L has four channels.
- If the board or the connected wire receives noise, or the distance
between the board and the target is long, data may not be
outputted properly.
- For analog output signal, the current capacity is +-3mA (Max.).
Check the specification of the connected device before connecting
the board.
- Do not short the analog output signal to analog ground, digital
ground, and/or power line. Doing so may damage the board.
- Do not connect an analog output signal to any other analog output,
either on the board or on an external device, as this may cause a
fault on the board.