USB-1608G Series User's Guide
Specifications
21
Analog output (USB-1608GX-2AO only)
Table 6. 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: 500 µs
Amplitude: 2 V p-p
Powered off
Duration: 10 ms
Amplitude: 7 V peak
Differential
non-linearity
±0.25 LSB typ
±1 LSB max
Output current
AOUTx pins
±3.5 mA max
Output short-circuit
protection
AOUTx connected to AGND
Unlimited duration
Output coupling
DC
Power on and
reset state
DACs cleared to zero-scale: 0 V, ±50 mV
Output noise
30 µVrms
Sample clock source
Internal D/A clock or external D/A clock
(AOCKI pin)
Output update rate
500 kHz / (number of channels in scan)
Settling time
To rated accuracy, 10 V step
40 µs
Slew rate
9 V/µs
Throughput
Software paced
33 to 4000 S/s typ, system-dependent
Hardware paced
500 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 7. Calibrated absolute accuracy specifications
Range
Absolute accuracy (±LSB)
±10 V
16.0
Table 8. 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
12.7
13
Table 9. Relative accuracy specifications (±LSB)
Range
Relative accuracy (INL)
±10 V
4.0 typ
