User`s manual

Introduction 7
USB-1900 Series
1.4.3 Analog Output
Analog Output (AO)
Number of channels 2
D/A converter DAC8871 or equivalent
Maximum update rage 1M samples
Resolution 16 bits
FIFO size 10k samples, 2-CH sharing
Data transfers
Programmed I/O, Continuous
(bulk trans.)
Output range ± 10V
Output coupling DC
Output impedance 0.01 (maximum)
Stability Any passive load, up to 1500pF
Power-on state Around 0V, steady-state
Electrical
Offset Error ±0.15 mV (typical)
Gain Error ±0.05% (typical)
Slew rate 20 V/µs
Rise time 0.5 µs
Fall time 0.5 µs
Settle time to 1% output error 2.5 µs
DNL < 1 LSB
INL 1 LSB or less
Output driving: ±5 mA
Power-on glitch 3.4 V for 30 ms