Appendix A Specifications
AT-MIO-16X User Manual A-8
©
National Instruments Corporation
Differential nonlineari ty in a DA C is a m easur e of devia tio n of co de
width from 1 LSB. For a DAC, code width is the diffe rence between the
analog values produced by consecutive digital codes. A specification of
±0.5 LSB differential nonlinearity ensure that the code width is always
greater than 0.5 LSB (guaranteeing monotonicity) and less than 1.5
LSB.
Digital I/OCompatibility..................................... TTL-compatible
Output current source capability.........Can source 2.6 mA at VOH at
2.4 V min
Output current sink capability............ Can sink 24 mA at VOL at
0.5 V max
Timing I/ONumber of channels .......................... . 3 counter/timers
1 frequency output
Resolution..........................................16-bit for 3 counter/timers,
4-bit for frequency output
channel
Base clock available . .... .. .. ..... .. .... .. .. ... 5 MHz, 1 MHz, 100 kHz ,
10 kHz, 1 kHz, 100 Hz
Base clock accuracy ........................... ±0.01%
Compatibility..................................... TTL-compatible inputs and
outputs. Counter gate and source
inputs are pulled up with 4.7-kΩ
resistors onboard.
Counter input frequency ..................... 6.9 MHz maximum (145-nsec
period) with a minimum pulse
width of 70 nsec