Measurement Computing USB-3102 - Manual (Page 20)

20
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
(Note 1)
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 2)
Duration: 5 uS typ.
Amplitude: 5V p-p typ.
Host PC is reset, powered on,
suspended or a reset command is
issued to device.
(Note 3)
Duration: 2 S typ.
Amplitude: 2V p-p typ.
Initial power on Duration: 50 mS typ.
Amplitude: 5V peak typ.
Differential non-linearity
(Note 4)
Calibrated ±1.25 LSB typ.
-2 LSB to +1 LSB max.
Un-calibrated ±0.25 LSB typ.
±1 LSB max.
Output current VOUTx pins ±3.5 mA typ.
Output short-circuit protection VOUTx connected to AGND Indefinite
Output coupling DC
Power on and reset state DACs cleared to zero-scale: 0 V, ±50 mV typ.
Output range: 0-10 V
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 to 10 V range 1.20 V/µS typ.
±10 V range 1.20 V/µS typ.
Throughput Single-channel 100 Hz max., system dependent
Multi-channel 100 Hz/#ch max., system dependent
Note 1: Each of the four DAC8554 outputs controls a VOUTx and IOUTx channel-pair simultaneously.
So, for example, when writing to channel VOUT0, the associated IOUT0 channel will also be
updated. Conversely, when writing to channel IOUT0, the associated VOUT0 channel is also
updated. Unused VOUTx and IOUTx output channels should be left disconnected.