Measurement Computing USB-3110 - Manual (Page 18)

18
Chapter 4
Specifications
Typical for 25 °C unless otherwise specified.
Specifications in italic text are guaranteed by design.
Analog voltage output
Table 1. Analog voltage output specifications
Parameter Conditions Specifications
Digital to Analog converter DAC8554
Number of channels 4
Resolution 16 bits
Output ranges Calibrated ±10 V, 0 to 10 V
Software configurable
Un-calibrated ±10.2 V, -0.04 to 10.08 V
Software configurable
Output Transient ±10 V to (0 to 10 V) or
(0 to 10 V) to ±10 V range
selection (Note 1)
Duration 5 µS typ.
Amplitude 5 V p-p typ.
Host PC is reset, powered up,
suspended or a reset command is
issued to device. (Note 2) Duration 2 S typ.
Amplitude 2 V p-p typ.
Initial power on. Duration 50 mS typ.
Amplitude 5 V peak typ
Differential non-linearity
(Note 3)
Calibrated ±1.25 LSB typ.
-2 LSB to +1 LSB max.
Un-calibrated ±0.25 LSB typ.
±1 LSB max.
Current output (Note 4) VOUTx pins ±40 mA max.
Output short-circuit protection
(Note 4) VOUTx connected to AGND 100 mS max.
Output coupling DC
Power on and reset state DACs clear to zero-scale: 0 V, ±50 mV typ.
Output Range: 0-10V
Output noise 0 to 10 V range 14.95 µVrms typ.
±10 V range 31.67 µVrms typ.
Settling time to 1 LSB accuracy 25 µS typ.
Slew rate 0 to10 V range 2.0 V/µS typ.
±10 V range 4.0 V/µS typ.
Throughput single channel 100 Hz max., system dependent
multi-channel 100 Hz/#ch max., system dependent
Note 1: The USB-3110 output voltage level defaults to 0V whenever the output voltage range is
reconfigured.
The USB-3110 output voltage level will also default to 0V:
1. Whenever the host PC is reset, shut down or suspended
2. If a reset command is issued to the device.
Note 2: The duration of this particular output transient is highly dependent on the enumeration process of
the host PC. Typically the output of the USB-3110 is stable after 2 seconds.