Measurement Computing PCIM-DAS1602/16, Руководство пользователя

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Accuracy
±0.5 LSB typ, ±1 LSB max Differential Linearity Error
±0.5 LSB typ, ±1 LSB max Integral Linearity Error
Trimmable by potentiometer to 0 Offset Error
Trimmable by potentiometer to 0 Gain Error
Accuracy Components
±2 LSB Absolute Accuracy
±1 LSB Typical Accuracy
Total board error is a combination of Gain, Offset, Differential Linearity and Integral Linearity error. The
theoretical absolute accuracy of the board may be calculated by summing these component errors. Worst case error
is realized only in the unlikely event that each of the component errors are at their maximum level, and causing
error in the same direction.
Analog Output Drift
±0.44 LSB/°C max Overall Analog Output drift
±0.22 LSB/°C max Analog Output Zero drift
±0.22 LSB/°C max Analog Output Full-Scale Gain drift
Absolute error change per °C Temperature change is a combination of the Gain and Offset drift of many
components. The theoretical worst case error of the board may be calculated by summing these component errors.
Worst case error is realized only in the unlikely event that each of the component errors are at their maximum
level, and causing error in the same direction.
Digital Input / Output Section
Digital I/O Connector
24 Number of I/O
82C55 Digital Type
•
2 banks of 8 with handshake
3 banks of 8 or
2 banks of 8 and 2 banks of 4 or Configuration per 82C55
User installed. Dual footprint allows pull-up or pull-down configuration Pull-Up/Pull-Down Resistors
Input mode (high impedance) Power-up / reset state
0.4 volts max @ 2.5mA Output Low
3.0 volts min @
−
2.5mA
Output High
0.8 volts max,
−
0.5 volts absolute min
Input Low
2.0 volts min, 5.5 volts absolute max Input High
Main Connector
0.8 volts max,
−
0.5 volts absolute min
Input Low
2.0 volts min, 7 volts absolute max Input High
0.5 volts @ 8mA max Output Low
2.7 volts @
−
0.4mA min
Output High
4 fixed input, 4 fixed output Configuration
8 Number of I/O
74LS373, pulled to logic high via 10K resistors Digital Input Type
74LS244, power up / reset to LOW logic level Digital Output Type
40