Description
With NI-DAQmx, National Instruments has revised its terminal names so they are easier to understand and more consistent among NI hardware and software products. The revised terminal names used in this document are usually similar to the names they replace. For a complete list of Traditional NI-DAQ terminal names and their NI-DAQmx equivalents, refer to the Terminal Name Equivalents table in the S Series Help.
Caution
Do not use for measurements within Categories II, III, or IV.
Overvoltage protection
(AI +, AI –) …………………………………….. ±36 V
Input current during
overvoltage conditions ……………………… ±20 mA max
Input FIFO size
NI 6122 ……………………………………. 16 MS
NI 6123 ……………………………………. 16 or 32 MS
Data transfers ………………………………….. DMA, interrupts,
programmed I/O
DMA mode …………………………………….. Scatter-gather
DC Transfer Characteristics
INL………………………………………………… ±2 LSB max
DNL ………………………………………………. –1 min, 1.5 max,
no missing codes
Timing I/O
Number of channels …………………………. 2 up/down counter/timers, 1 frequency scaler
Resolution
Counter/timers ………………………….. 24 bits
Frequency scaler ……………………….. 4 bits
Compatibility ………………………………….. TTL/CMOS
Base clocks available
Counter/timers ………………………….. 20 MHz, 100 kHz
Frequency scaler ……………………….. 10 MHz, 100 kHz
Base clock accuracy …………………………. ±0.01%
Max source frequency………………………. 20 MHz
Min source pulse duration ………………….10 ns, edge-detect mode
Min gate pulse duration ……………………..10 ns, edge-detect mode
Data transfers……………………………………DMA, interrupts,
programmed I/O
DMA modes …………………………………….Scatter-gather
The NI 6122/6123 devices are designed to meet the requirements of the following standards of safety for electrical equipment for measurement, control, and laboratory use:
• IEC 61010-1, EN 61010-1
• UL 61010-1
• CAN/CSA-C22.2 No. 61010-1