Advantech PCIE-1810 handleiding
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PCIE-1810 User Manual 8
2.3 Signal Connection and Pin Assignment
2.3.1 Analog Input Signal Connection
An analog input channel measures the voltage (VS) of the external source. Each two
channels, for example, AI0 and AI1, AI2 and AI3, etc., can be configured as a differ-
ential input channel, or as two separate single-ended channels. When configured as
a differential channel, even number channel is the positive terminal, and odd number
channel is the negative terminal. When configured as separate single-ended chan-
nels, voltage should be applied between channel terminal and analog ground
(AGND) terminal.
The voltage is routed through an analog multiplexer (MUX), amplified or attenuated
by a programmable gain instrumentation amplifier (PGIA), and sampled and con-
verted into a digital form of data by an analog-to-digital converter (ADC). Each chan-
nel is converted by the ADC in channel by channel order. That is, only one channel at
a time is being converted. This architecture is called multiplexed analog input. Analog
input signal connection and internal functional block diagram is shown in Figure 2. 1.
Figure 2.1 Analog input signal connection
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Productinformatie
| Merk | Advantech |
| Model | PCIE-1810 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 4970 MB |
