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C-2
DriverLINX Configuration Notes
Configuration
The following section describes detailed information about how
DriverLINX implements features of the Keithley DAS-1800 boards.
Model
Note:
In this section, “DAS-1800” refers to all models in the DAS-1800
Series. “DAS-1801” refers to the models with low range analog input,
while “DAS-1802” refers to the models with high range analog input. A
suffix, such as “ST,” designates models with certain features. The suffix
“XX-DA” refers to both the ST-DA and HR-DA models.
DriverLINX for the Keithley DAS-1800HC
supports the following models:
DAS-1801ST
DAS-1801AO
DAS-1802ST
DAS-1802AO
DAS-1802HR
DAS-1801ST-DA
DAS-1801HC
DAS-1802ST-DA
DAS-1802HC
DAS-1802HR-DA
The primary differences among these boards are number of input
channels, A/D resolution, and analog output implementation. All
DAS-1800 models are fully software programmable except for the base
address. You must select the base address with a DIP switch. All 12-bit
versions share the same maximum A/D conversion rate of 333kHz. The
16-bit versions (DAS-1802HR and DAS-1802HR-DA) have a maximum
A/D conversion rate of 100kHz. All DAS-1800 models include a 1K
sample FIFO buffer and support burst mode sampling, software
programmable analog input gain and have a hardware channel/gain
queue. The channel/gain queue supports out-of-sequence channels and
different input channel gains.
The DAS-1801 boards have gains of 1, 5, 50, and 250 with unity gain
input range of
±
5V. The DAS-1802 boards have gains of 1, 2, 4, and 8
with unity gain input range of
±
10V. The DAS-1800ST has 16
single-ended or 8 differential analog input channels with 12-bit
resolution, 4 digital input lines, and 4 digital output lines. The
DAS-1802HR has 16-bit A/D resolution with a maximum sampling rate
of 100kHz and is otherwise the same as the ST. The DAS-1800HC is the
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