NI myRIO-1950 User Guide and Specifications | © National Instruments | 15
MXP connectors
Configuration............................................ Four single-ended channels per connector
Input impedance ....................................... >500 kΩ acquiring at 500 kS/s
1 MΩ powered on and idle
4.7 kΩ powered off
Recommended source impedance ............ 3 kΩ or less
Nominal range .......................................... 0 V to +5V
Absolute accuracy..................................... ±50 mV
Bandwidth................................................. >300 kHz
Analog Output
Aggregate maximum update rates
All AO channels on MXP connectors ...... 345 kS/s
Resolution ......................................................... 12 bits
Overload protection .......................................... ±16 V
Startup voltage .................................................. 0 V after FPGA initialization
MXP connectors
Configuration............................................ Two single-ended channels per connector
Range ........................................................ 0 V to +5 V
Absolute accuracy..................................... 50 mV
Current drive............................................. 3 mA
Slew rate ................................................... 0.3 V/μs
Digital I/O
Number of lines
MXP connectors ....................................... 2 ports of 16 DIO lines (one port per connector);
one UART.RX and one UART.TX line per
connector
Direction control............................................... Each DIO line individually programmable as
input or output
Logic level ........................................................ 5 V compatible LVTTL input; 3.3 V LVTTL
output
Input logic levels
Input low voltage, V
IL
.............................. 0 V min; 0.8 V max
Input high voltage, V
IH
............................. 2.0 V min; 5.25 V max
Output logic levels
Output high voltage, V
OH
sourcing 4 mA .......................................... 2.4 V min; 3.465 V max
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