19
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.
Summary of Contents for USB-3100 Series
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