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3.1 Performance Specifications
3.1.1 Performance specifications list
3
SPECIFICATIONS
3 SPECIFICATIONS
The description of this chapter and later is based on the Q68AD-G.
3.1 Performance Specifications
3.1.1 Performance specifications list
Table 3.1 shows the performance specifications of the A/D converter modules.
Table3.1 Performance Specifications of Q68AD-G
Item Specifications
Number of analog input
channels
8 channels
Analog input
Voltage
-10 to 10VDC (Input impedance 1 M or more)
Current
0 to 20mADC (Input resistance 250 )
Digital output
16-bit signed binary (normal resolution mode: –4096 to 4095, high resolution mode: –12288 to 12287,
–16384 to 16383)
Using scaling function 16-bit signed binary (-32768 to 32767)
I/O characteristics,
maximum resolution
*7
Input Analog input range
Normal resolution mode High resolution mode
Digital
output value
Maximum
resolution
Digital
output value
Maximum
resolution
Voltage
0 to 10V
0 to 4000
2.5 mV 0 to 16000 0.625 mV
0 to 5V 1.25 mV
0 to 12000
0.416 mV
1 to 5V 1.0 mV 0.333 mV
1 to 5V
(Extended mode)
-1000 to 4500 1.0 mV
-3000 to
13500
0.333 mV
-10 to 10V
-4000 to 4000
2.5 mV
-16000 to
16000
0.625 mV
Users range setting
0.375 m V
*8
-12000 to
12000
0.333 mV
*8
Current
0 to 20mA
0 to 4000
5A
0 to 12000
1.66 A
4 to 20mA
4 A 1.33 A
4 to 20mA
(Extended mode)
-1000 to 4500
4A
-3000 to
13500
1.33 A
Users range setting -4000 to 4000
1.37 A
*8
-12000 to
12000
1.33 A
*8
Accuracy
(Accuracy
relative to
digital output
value)
Reference
accuracy
*1
±0.1%
Normal resolution mode : ±4digit
*2
High resolution mode (0 to 10V, -10 to 10V) : ±16digit
*2
High resolution mode (Other than the above ranges) : ±12digit
*2
Temperature
coefficient
*3
±71.4ppm/°C (0.00714%/°C)
Common mode
characteristic
Common mode voltage, Input-Common ground (input voltage 0V): 500VAC
Common mode voltage rejection ratio (VCM < 500V): 60Hz 107dB, 50Hz 106dB
Sampling cycle
*4
10ms/ channel
Response time
*5
20ms
Absolute maximum input
Voltage: ± 15V Current: ± 30mA
*6
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