Number of channels

16 differential or 32 single ended

ADC resolution

18 bits

DNL

No missing codes guaranteed

ample rate

Single channel maximum

625 kS/s

Multichannel maximum (aggregate)

500 kS/s

Minimum

No minimum

Timing accuracy

50 ppm of sample rate

Timing resolution

50 ns

Input coupling

DC

Input range

±0.1 V, ±0.2 V, ±0.5 V, ±1 V, ±2 V, ±5 V, ±10 V

Maximum working voltage for analog inputs (signal + common mode)

±11 V of AI GND

CMRR (DC to 60 Hz)

110 dB

Input impedance, device on

AI+ to AI GND

>10 GΩ in parallel with 100 pF

AI- to AI GND

>10 GΩ in parallel with 100 pF

Input impedance, device off

AI+ to AI GND

820 Ω

AI- to AI GND

820 Ω

Input bias current

±100 pA

Crosstalk (at 100 kHz)

Adjacent channels

-75 dB

Non-adjacent channels

-95 dB

Small signal bandwidth (-3 dB)

750 kHz filter off, 40 kHz filter on

Input FIFO size

2,047 samples

Scan list memory

4,095 entries

Data transfers

PCI/PXI

DMA (scatter-gather), interrupts, programmed I/O

USB

USB Signal Stream, programmed I/O

Overvoltage protection for all analog input and sense channels

Device on

±25 V for up to eight AI pins

Device off

±15 V for up to eight AI pins

Input current during overvoltage condition

±20 mA maximum/AI pin