Analog Output - Measurement Computing USB-1808X-OEM User Manual

USB-1808X-OEM User's Guide

Analog output

Parameter
Number of channels
Resolution
Output ranges
Output transient
Differential non-linearity
Output current
Output short-circuit protection
Output coupling
Power on and reset state
Output noise
Trigger source
Scan clock source
Output update rate
Slew rate
Throughput
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.
Range
±10 V
Range
±10 V
Range
±10 V
Table 5. Analog output specifications
Condition
Calibrated
Host computer is reset, powered on,
suspended, or a reset command is issued
to the device
Powered off from 0 V output
AOUTx pins
Single AOUTx channel connected to
AGND
Software paced
Hardware paced
Table 6. Calibrated absolute accuracy specifications
Absolute accuracy (±LSB)
16
Table 7. Calibrated absolute accuracy components specifications
% of
reading
0.0183
Table 8. Relative accuracy specifications (±LSB)
Relative accuracy (INL)
1.0
Specification
2
16 bits
±10 V
Duration: 5 ms
Amplitude: 2 V p-p
Duration: 20 ms
Amplitude: 5 V p-p
±0.25 LSB typ
±1 LSB max
±3.5 mA max
Unlimited duration
DC
DACs cleared to zero-scale: 0 V, ±50 mV
100 µVrms


Internal output scan clock or external
output scan clock (OCLKI pin)
0.023 Hz to 500 kHz per channel
15 V/µS
33 S/s to 8,000 S/s typ, system-dependent
1,000 kS/s max, system-dependent
Offset Offset tempco
(±mV) (µV/°C)
1.831 4.7
20
Specifications
OTRIG (see External trigger on page
24)
Digital pattern detection (see Pattern
trigger on page 24)
Gain tempco
(ppm of range/°C)
9.4