USB-1808X-OEM User's Guide
Specifications
20
Analog output
Table 5. Analog output specifications
Parameter
Condition
Specification
Number of channels
2
Resolution
16 bits
Output ranges
Calibrated
±10 V
Output transient
Host computer is reset, powered on,
suspended, or a reset command is issued
to the device
Duration: 5 ms
Amplitude: 2 V p-p
Powered off from 0 V output
Duration: 20 ms
Amplitude: 5 V p-p
Differential non-linearity
±0.25 LSB typ
±1 LSB max
Output current
AOUTx pins
±3.5 mA max
Output short-circuit protection
Single AOUTx channel connected to
AGND
Unlimited duration
Output coupling
DC
Power on and reset state
DACs cleared to zero-scale: 0 V, ±50 mV
Output noise
100 µVrms
Trigger source
OTRIG (see
Digital pattern detection (see
Scan clock source
Internal output scan clock or external
output scan clock (OCLKI pin)
Output update rate
0.023 Hz to 500 kHz per channel
Slew rate
15 V/µS
Throughput
Software paced
33 S/s to 8,000 S/s typ, system-dependent
Hardware paced
1,000 kS/s max, system-dependent
Note 1:
Leave unused AOUTx output channels disconnected.
Note 2:
AOUTx defaults to 0 V whenever the host computer is reset, powered on, suspended, or a reset command is
issued to the device.
Table 6. Calibrated absolute accuracy specifications
Range
Absolute accuracy (±LSB)
±10 V
16
Table 7. Calibrated absolute accuracy components specifications
Range
% of
reading
Offset
(±mV)
Offset tempco
(µV/°C)
Gain tempco
(ppm of range/°C)
±10 V
0.0183
1.831
4.7
9.4
Table 8. Relative accuracy specifications (±LSB)
Range
Relative accuracy (INL)
±10 V
1.0
