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MODEL
DAC816 |
EIGHT, INDEPENDENT, 16 BIT
DIGITAL TO ANALOG CONVERTERS
FEATURES:
EIGHT COMPLETELY INDEPENDENT CHANNELS
16 BIT RESOLUTION, 14 BIT ACCURACY FOR VOLTAGE AND CURRENT OUTPUTS
MULTIPLE OUTPUT OPTIONS WHICH MAY BE MIXED IN THE MODULE
± 10 VOLTS (STANDARD)
0 to +10 VOLTS
4 to 20 ma, or 0 to 20 ma
REREADABLE DATA REGISTERS FOR VERIFICATION
RESET ON POWER UP AND ON COMMAND
10 MICRO SECOND SETTLING TIME
SINGLE WIDTH CAMAC MODULE
CONTROL SIGNALS TO SIMPLIFY SYSTEM OPERATION
APPLICATIONS:
VOLTAGE MODE
- DRIVE PANEL METERS, STRIP CHART RECORDERS, X-Y RECORDERS
- PROVIDE SET POINT INPUTS FOR SERVOS
- PROVIDE PROGRAMMABLE POWER SUPPLY INPUTS
CURRENT MODE
- DRIVE PROCESS CONTROL CURRENT LOOPS
- CONTROL CURRENT-LOOP METERS, VALVES, ETC.
The JOERGER ENTERPRISES, INC. MODEL DAC816 is a high performance 8
channel, 16 bit digital to analog converter. The latest in 16 bit DAC's and current output
drivers have been incorporated to provide 16 bit resolution and 14 bit accuracy for both
voltage or current outputs. To further increase its versatility the module has been
designed as a dual four channel device. In this way both current and voltage outputs can
be supplied in a single module. Each four channels can be specified separately. The
outputs provided can be verified with read command F3 on read lines R1-4. Data coding is
unipolar for the zero to 10 volt output and both current outputs with two's complement
used for the ± 10 volt output. The loaded data can be reread
for verification. Individual converters insure accurate high speed performance. A tracking
regulator is used to generate the analog power, and gain and offset pots allow the
trimming of each channel at test to enhance operation. To improve system performance a
programmable control output is provided An update signal is also provided to indicate the
modules contents have been changed. A status input signal is available and is monitored by
F27. The module has been designed as a versatile, high performance converter that is
completely programmable and system oriented, while providing both current or voltage
outputs at a reasonable price.
SPECIFICATIONS: (each channel)
| RESOLUTION |
16 Bits |
| ACCURACY |
14 Bits |
| LINEARITY |
± 0.005% for Current or Voltage
Output |
| SETTLING TIME |
Voltage Output 10usec |
|
Current Output 25usec |
| OUTPUTS |
± 10volts, 5ma, standard |
|
+10volts, 5ma |
|
4 to 20ma |
|
0 to 20ma |
CAMAC COMMANDS
| 00-7 |
Reads out channels data register on read lines R1-16 |
| 30 |
Reads out module output range on read lines R1-4 |
| 90 |
Resets all eight channels to 0v, 0ma or 4ma out (see range
options) |
| 160-7 |
Loads data registers with 2's compliment data for bipolar
operation and offset binary for unipolar output (voltage or current), using write lines
W1-16 |
| 240 |
Disables control output signal |
| 260 |
Enables control output signal |
| 270 |
Monitor status input signal, Q=1 if status signal is present |
| (Z+C)S2, Power up |
Resets data registers, disables control output |
| X |
All valid commands generate X=1 |
| Q |
F0, F3, F16 and F27 when appropriate generate Q=1 |
| INDICATORS: |
"N" Module is addressed |
| POWER REQUIREMENTS: |
+6V, 145ma |
|
+24V, 140ma plus output current |
|
-24V, 150ma |
| SIZE: |
Single width CAMAC module |
| CONNECTOR: |
Cannon DB25P, mating connector DB25S, standard |
|
Individual LEMO RA00250 connectors, optional |
| TEMPERATURE RANGE: |
20° C to 50° C |
| OPTIONS: |
1. Output ranges may be selected in groups of
four channels |
|
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± 10 volts standard |
|
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0 to +10 volts |
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|
4 to 20ma |
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0 to 20ma |
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2. LEMO connectors |
JOERGER ENTERPRISES, INC 166 Laurel Road, East Northport, NY 11731
USA
| 1-631-757-6200 |
(Fax 1-631-757-6201) |
www.joergerinc.com |
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