Measurement-computing USB-3102 Instrukcja Użytkownika Pobierz pdf (Strona 21)

USB-3102 User's Guide Specifications

Note 2: The USB-3102 output voltage level defaults to 0V whenever the output voltage range is

reconfigured.

The USB-3102 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 3: The duration of this particular output transient is highly dependent on the enumeration process of

the host PC. Typically the output of the USB-3102 is stable after 2 seconds.

Note 4: The maximum differential non-linearity specification applies to the entire 0 to 50 °C temperature

range of the USB-3102. This specification also accounts for the maximum errors due to the

software calibration algorithm (in Calibrated mode only) and the DAC8554 digital to analog

converter non-linearities.

Table 2. Absolute accuracy specifications – calibrated output

Range

Accuracy (±LSB)

±10 V

14.0

0 to 10 V

22.0

Table 3. Absolute accuracy components specifications – calibrated output

Range

% of reading

Offset (±mV)

Temp drift (%/°C)

Absolute accuracy at FS (±mV)

±10 V

±0.0183

1.831

0.00055

3.661

0 to 10 V

±0.0183

0.915

0.00055

2.746

Table 4. Relative accuracy specifications

Range

Relative accuracy (±LSB)

±10 V , 0 to 10 V

4.0 typ.

12.0 max.

Analog current output

Table 5. Analog current output specifications

Parameter

Conditions

Specifications

Number of channels

(Note 5)

Resolution

16 bits

Output ranges

Calibrated

0 to 20 mA typ.

Uncalibrated

0 to 25 mA typ.

Compliance voltage range

(Note 6)

Calibrated output

+8 V min.

+36 V max.

Differential non-linearity (Note 7)

Calibrated

±1.25 LSB typ.

-2 LSB to +1 LSB max.

Un-calibrated

±0.25 LSB typ.

-1 LSB to +1 LSB max.

Absolute accuracy

Compliance voltage = +13V

Resistive load = 100Ω

±0.05% of full scale range

IOUTx leakage current

All zeros written to IOUTx

channel

100nA typ. (each individual IOUT

channel)

Settling time

Full scale step to 1LSB accuracy

Compliance voltage = 12V,

Rload = 500Ω

25 µS typ.

Throughput

Single-channel

100 Hz max., system dependent

Multi-channel

100 Hz/#ch max., system dependent

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 27

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