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WinSystems

PCM-MIO-G Datasheet Preview

PCM-MIO-G Datasheet

16-Bit A/D / 12-Bit D/A and 48-Lines of Digital I/O

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PC/104 MODULE
PCM-MIO-G
16-Bit A/D, 12-Bit D/A
and 48-Lines of Digital I/O
FEATURES
Multifunction Analog and Digital I/O Module
Standard configuration: 16-bit A/D, 12-bit D/A,
48-lines of digital I/O
Special OEM configurations available for 16-bit D/A
and other analog and digital I/O combinations
No adjustment potentiometers or calibration needed
Software programmable interrupt configuration
Standard 0.100" headers for easy cable access
I/O pinout compatible with WinSystems’ PCM-ADIO
Free software drivers in C, Windows®, and Linux
Operating temperature: -40°C to +85°C
+5Vdc operation
Small size: 90mm x 96mm (3.6" x 3.8")
Analog Input Section
16-bit Analog-to-Digital (A/D) converter
with sample-and-hold circuit
Conversion speed: up to 100k samples/sec., through-
put or about 85k samples/sec. (processor dependent)
Analog input ranges: 0-5V, 0-10V, ±5V, and ±10V
Any combination of up to 16 single-ended input
channels and up to 8 differential input channels
±25V input protection on each channel
Each channel independently software
programmable for input type and range
No missing codes over full range
Low noise DC/DC converter
High-precision, low drift reference
DMA or interrupt I/O supported
Supports industry standard signal conditioners
Analog Output Section
Eight, 12-bit Digital-to-Analog (D/A) converters
Output ranges: 0-5V, 0-10V, ±5V, ±10V
FUNCTIONAL CAPABILITY
The PCM-MIO-G is a versatile, PC/104-based analog
input, analog output, and digital I/O board designed to
meet customer demands for high-accuracy and high-chan-
nel count analog and digital I/O. The board is based upon
Linear Technologies' precision converters and voltage ref-
erences which require no external calibration. The digital
I/O provided uses WinSystems’ versatile WS16C48, that
used on many of our SBCs and other I/O products.
The PCM-MIO-G operates over the industrial temperature
range of - 40° to +85° Centigrade. This board is
Each channel independently software
programmable
Output channels can be updated and cleared
individually or simultaneously
Interrupt I/O supported
Supports industry standard signal conditioners
Digital Input/Output Section
48 bi-directional TTL-compatible digital I/O (DIO)
lines with 24 capable of event-sense interrupt generation
12 mA sink current per line
Pinout compatible with industry-standard,
optically isolated, digital I/O racks
pinout compatible with other WinSystems' PC/104 analog
conversion modules.
Analog Input Section - Two analog-to-digital converters
(ADCs) are used on the board. Each contains an
8-channel multiplexer with ±25V protection. The 8-chan-
nel multiplexer on each ADC can be programmed for sin-
gle-ended inputs or pairs of differential inputs or combina-
tions of both. Using on-chip resistors and switches, it pro-
vides attenuation and offset that can be programmed for
each channel on the fly. The precision trimmed attenuators
ensure accurate input ranges.




WinSystems

PCM-MIO-G Datasheet Preview

PCM-MIO-G Datasheet

16-Bit A/D / 12-Bit D/A and 48-Lines of Digital I/O

No Preview Available !

PCM-MIO-G BLOCK DIAGRAM
All channels are fault protected so that a problem on one
channel will not affect the conversion result of another chan-
nel. Also overrange protection is provided on unselected
channels so that an unused channel will not affect the con-
version result on the selected channel.
Analog Input Range - The PCM-MIO-G supports four input
voltage ranges. Any input range is independently software
selectable for each channel. No jumpers are required.
Unipolar
0 - 5V
0 - 10V
Bipolar
±5V
±10V
Input Voltage Ranges for PCM-MIO
The board will support up to 16 single-ended input chan-
nels, 8 differential input channels or various combinations
of both. This means that under software control, any channel
can be set for either single-ended or differential along with its
voltage range. For example, Channels 0 and 1 could be set as
0-10V single-ended, Channel 2 set as ±5V differential,
Channels 4 and 5 set as 0-5V single-ended, Channel 6 set as
±10V differential, etc.
In the differential input mode, only input pairs beginning
with the even channel numbers are used. The input signal
is applied between the even channel number and the next
odd channel input pin. The input polarity is software
programmable.
Channel 0 1 2 GND
Channel 1 3 4 GND
Channel 2 5 6 GND
Channel 3 7 8 GND
Channel 4 9 10 GND
Channel 5
11 12 GND
Channel 6
13 14 GND
Channel 7
15 16 GND
Channel 8
17 18 GND
Channel 9
19 20 GND
Channel 10 21 22 GND
Channel 11 23 24 GND
Channel 12 25 26 GND
Channel 13 27 28 GND
Channel 14 29 30 GND
Channel 15 31 32 GND
GND
33 34 GND
Analog Input Connector Pinout
All analog input channels are wired to a 34-pin connector that
uses standard 0.100-inch pins.
The entire input channel configuration is done under soft-
ware control using a command protocol.
Software drivers are available in C, Windows® CE,
Windows® XPe, and Linux. Contact an applications
engineer or visit our web site for details.
Analog Output Section - The PCM-MIO uses two Linear
Technologies SoftSpanTM quad Digital-to-Analog convert-
ers (DACs). They are software programmable for either
unipolar or bipolar mode plus specific voltage range on a
per channel basis.
INL and DNL are accurate to one LSB over the industrial
temperature range in both unipolar and bipolar modes. The
device includes an internal deglitcher circuit that reduces
the glitch impulse to less than 2nV-s (typical).
There are eight independent 12-bit, D/A channels that each
have four programmable output voltage ranges. They are
asynchronously cleared to 0V for all ranges when reset.
Unipolar
0 - 5V
0 - 10V
Bipolar
±5V
±10V
Output Voltage Ranges for the DAC channels


Part Number PCM-MIO-G
Description 16-Bit A/D / 12-Bit D/A and 48-Lines of Digital I/O
Maker WinSystems
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