ㆍ▷ 4 AI (16-비트, 500 kS/s/ch), 8 DIO
ㆍ▷ Four simultaneously sampled 16-bit DIFF AI channels; ±10 V to ±1 25 V input range
ㆍ▷ Eight 5 V logic DIO lines
ㆍ▷ Two 24-bit, 20 MHz counter/timers
Features
▷ Four simultaneously sampled 16-bit DIFF AI channels; ±10 V to ±1 25 V input range
▷ Eight 5 V logic DIO lines
▷ Two 24-bit, 20 MHz counter/timers
▷ 68-pin male SCSI-II type connector
Specification & Introduction
Analog Input
▷ Input Characteristics
Number of channels
4
▷ Type of ADC
Resolution
16 bits, 1 in 65,536
Pipeline
0
▷ Sampling rate
Maximum
500 kS/s per channel
Minimum
No minimum
▷ Input impedance
AI – to AI GND
100 MΩ in parallel with 10 pF
AI + to AI GND
100 MΩ in parallel with 10 pF
▷ Input bias current
±2 pA typ, ±25 pA max
▷ Input offset current
±1 pA typ, ±10 pA max
▷ Input coupling
DC
▷ Max working voltage for all analog input channels
Positive input (AI +)
±11 V for all ranges,
Measurement Category I
Negative input (AI –)
±11 V for all ranges,
Measurement Category I
▷ 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
Ordering Information