|
16/8/4-channel 14-bit analog output board |
|
 |
» Features
■ 32-bit +5V PCI Bus, Plug & Play
■ 16/8/4-channel, 14-bit analog output
■ Unipolar or bipolar outputs available from each
converter
■ Voltage/current outputs for individual D/A converter
■ Output type and output range can be software
programmable
■ 4~20 mA or 0~20 mA current sink to ground for
each converter
■ Two pacer timers interrupt source
■ Double-buffered D/A latches
■ Software calibration
■ 16-channel DI, 16-channel DO
|
|
» Functional Description
The PIO-DA16/DA8/DA4 are multi-channel D/A boards with the PCI bus for IBM or compatible PC.
The PIO-DA16/ DA8/DA4 offers 16/8/4-channels double-buffered analog output.
The output range may be configured in different ranges : ±10V, ±5V, 0~10V, 0~5V voltage output, or 4~20 mA, 0~20 mA sink current loop.
The innovative design improves several drawbacks of the conventional D/A boards.
For example:
1. Jumperless and without Trim pot.
2. The calibration is performed under software control and eliminating manual
Trim pot adjustments. The calibration data is stored in EEPROM.
3. Each channel can be selected as voltage or current output.
4. High channel count output can be implemented in half size.
» Applications
● Programmable voltage source
● Programmable current sink
● Harsh environment operation
● Process control
|
» Specifications
Analog Output
● D/A converter : Quad 14-bit MDAC
● Number of channels : 4/8/16 independent
● Resolution : 14-bit
● Type : double-buffered, multiplying
● Integral linearity : 0.006% FSR; typical
● Differential linearity : 0.006 % FSR (typical)
Voltage Output Range
● Unipolar : 0~5V or 0~10V
● Bipolar : ±10V or ±5V
● Current drive : ±5 mA (PIO-DA16/DA8/DA4)
±40 mA (PIO-DA4H)
● Absolute accuracy : 0.01% FSR (typical)
Current Output Range
● 0~20 mA or 4~20 mA
● Absolute accuracy : 0.1% FSR (typical)
● Excitation voltage range : + 7 V to +40 V
Stability
● Offset temperature coefficient : ±50 μV /°C
● Gain temperature coefficient : ±10ppm/°C
Digital I/O
● 16 TTL-level input
● Input low VIL = 0.8V max; IIL =-0.4 mA max
● Input high VIH = 2.0V min; IIH = 20μA max
● 16 TTL-level output
● Output low VOL = 0.5V max; @IOL =8 mA max
● Output high VOH = 2.7V min; @IOH =0.4 mA max
|
General Specifications
● I/O connector : one 37-pin D-sub female
two 20-pin ribbon male
● Power requirements :
| Device |
+5V |
+12V |
-12V |
| PIO-DA16 |
1400 mA |
16 mA |
16 mA |
| PIO-DA8 |
800 mA |
8 mA |
8 mA |
| PIO-DA4 |
600 mA |
4 mA |
6 mA |
|
● Operating temperature : 0°C ~ 60°C
● Operating humidity : 0% ~ 90% non-condensing
● Storage temperature : -20°C ~ 70°C
● Dimensions : 179 mm x 122 mm
|
 |
» Output Range & Resolution
|
» The resolution of each is given as follows
| Configuration |
Equivalent bit |
Resolution |
| -10V~+10V |
14-bit |
1.22 mV |
| 0V~+10V |
13-bit |
1.22 mV |
| -5V~+5V |
13-bit |
1.22 mV |
| 0V~+5V |
12-bit |
1.22 mV |
| 0mA~20mA |
13-bit |
2.70μA |
| 4mA~20mA |
13-bit |
2.70μA |
|
|
 |
Ordering Information
Standard
PIO-DA4 : 4-channel 14-bit analog output board
PIO-DA4/S : PIO-DA4 with DN-37
PIO-DA8 : 8-channel 14-bit analog output board
PIO-DA8/S : PIO-DA8 with DN-37
PIO-DA16 : 16-channel 14-bit analog output board
PIO-DA16/S : PIO-DA16 with DN-37
Optional
DN-37 : DIN-rail mounting terminal board
DB-37 : Directly connection terminal board
DB-16P : 16-channel opto-isolated digital input board
DB-16R : 16-channel relay output board
DN-20 : DIN-rail mounting terminal board
ADP-20/PCI : 20-pin extender
|
|
