D/A16-08/16
Eight and Sixteen Channel 16-Bit Analog Output Cards
FEATURES
- Eight
or Sixteen independent double-buffered analog outputs
- 16-Bit
resolution
- Four
Voltage Output Ranges: 0-5V, 0-10V, +5V, +10V
- Individual
range selection per channel
- Channel-by-channel
or simultaneous update modes
- Outputs
held at zero volts at power-up
- Unique
"Software Clear" function permits DAC reset
without resetting counters
- Optional
DC-DC Converter for 10 V output ranges
- Setup
and calibration software included
FUNCTIONAL
DESCRIPTION
The
D/A16-08 and D/A16-16 are full-size cards that can be installed
in any long I/O slot of PC-AT class computers. They contain
either 8 or 16 double-buffered digital-to-analog converters
(DAC) and provide 8 or 16 independent analog output channels
of 16-bit resolution.
The
analog output channels have a double-buffered input for single-step
update and each is addressed at its own I/O location. The
DACs have a two-byte (8LSB's+8MSB's) loading structure. The
analog outputs can be updated either independently or simultaneously.
In
order to prevent excessive outputs at power-up, D/A16-08 and
D/A16-16 contain automatic circuits that set D/A outputs to
less than 15% of span at system power-on. Upon power-up, the
DAC reference voltage is set to a low voltage and the card
is set in the Simultaneous Update mode. After all DAC's have
been loaded with the desired values, a software command can
be used to switch the reference voltage ON at its nominal
value. Similarly, a software command can be used at any time
to set the reference voltage to zero causing all DAC outputs
to be zero volts.
The
cards also support a unique "Software Clear" capability.
This feature permits resetting the DAC output to zero volts
without changing the output mode.
Operation
on 10 V ranges requires optional DC-DC converter as PC computer
supply is marginal.
SPECIFICATIONS
Analog
Outputs
- Resolution:
16 bits
- Channels:
Eight or Sixteen, Independent
- Voltage
Output Ranges at 5mA max.:
0-5 VDC, 0-10 VDC, + 5.0 VDC, + 10.0 VDC
- Short-circuit
current: 25 mA maximum
- Output
resistance: Less than 0.1 ohm
Digital
to Analog Converter
- AD660
double-buffered monolithic chip
- Relative
Accuracy: + 0.003% of Full Scale
- Linearity:
+ 1 LSB integral non-linearity over rated temperature
range
- Monotonicity:
15 bits over entire operating temperature range
- Settling
time: 8 uSec to 0.0008% for full scale step input
- Gain
Temperature Drift: + 20 ppm/°C typ.
Environmental
- Operating
Temperature: 0 to +60 degree C.
- Storage
Temperature: -20 to +85 degree C.
- Humidity:
5% to 95% non condensing.
- Size:
13.130 inches. Install in a full-size slot.
Power
Requirements
- +5
VDC at 2.5 max. for fully populated 16 channel card
- +15
VDC provided by DC-DC converter from +5 supply
Regulatory
Compliance 
Declaration of Conformity, and Test Reports are on file. Users
must use appropriate shielded cables.
| Part
Number |
Price(USD)
|
| D/A16-02 |
447.00
|
| D/A16-04 |
611.00
|
| D/A16-08 |
945.00
|
| D/A16-16 |
1595.00
|
| DC-DC Converter |
75.00
|
View / Download Manual (in
.PDF format)
