Omega OMB-DAQ-2416_4AO Analog voltage output

OMB-DAQ-2416-4AO User's Guide Specifications

Analog voltage output

Unused VDACx output channels should be left disconnected.

The OMB-DAQ-2416-4AO output voltage level defaults to 0 V whenever the host PC is reset, shut down or suspended, or if a reset command is issued to the device.

The duration of the output transient depends highly on the enumeration process of the host PC. Typically, the output of the OMB-DAQ-2416-4AO is stable after two seconds.

Table 20. Analog voltage output specifications

Parameter		Conditions			Specifications
Digital-to-analog					DAC8555
converter
Number of channels					4
Resolution					16 bits
Output ranges		Calibrated			±10 V
		Uncalibrated			±10.05 V, software configurable
Output transient		Host PC is reset, powered on, suspended or a			Duration: 2 s
		reset command is issued to device (Note 6)			Amplitude: 2 V p-p
		Initial power on			Duration: 50 ms
					Amplitude: 5 V peak
Differential					±0.25 LSB typical
non-linearity					±1 LSB maximum
Output current		VDACx pins			±3.5 mA maximum
Output short-circuit		VDACx connected to AGND			Unlimited duration
protection
Output coupling					DC
VDACx readback					Each VDACx output can be independently
					measured by the onboard A/D converter.
					Software selectable
Power on and reset					DACs cleared to zero-scale: 0 V, ±50 mV
state
Output noise					30 µVrms
Settling time		To rated accuracy, 10 V step			45 µs
Slew rate					1.0 V/µs
Throughput		Single-channel			1000 S/s maximum, system-dependent
		Multi-channel			1000 S/s / #ch maximum, system-dependent
		Table 21. Calibrated absolute accuracy specifications
Range	Accuracy (±LSB)
±10 V	16.0
	Table 22. Calibrated absolute accuracy components specifications
Range	% of reading		Offset (±mV)	Temp drift (%/°C)		Absolute accuracy at FS (±mV)
±10 V	±0.0183		1.831	0.00055		3.661
			Table 23. Relative accuracy specifications
Range	Relative accuracy (±LSB)
±10 V	4.0 typical

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