Measurement-computing USB-3110 Instrukcja Użytkownika Pobierz pdf (Strona 19)

USB-3110 User's Guide Specifications

Note 3: The maximum differential non-linearity specification applies to the entire 0 to 50 °C temperature

range of the USB-3110. 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.

Note 4: The USB-3110 voltage outputs should not be kept in a short-circuit condition for longer than the

specified limit of 100 ms. For those applications that may potentially exceed the 40 mA

maximum current limit or the 100 ms short-circuit condition, external current limiting must be

used to prevent potential damage to the USB-3110.

Table 2. Absolute accuracy specifications – calibrated output, VOUTx Rload = 20 mA fixed resistive load

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 output calibration

Table 5. Analog output calibration specifications

Parameter

Conditions

Specifications

Recommended warm-up time

15 minutes min.

On-board precision reference

DC level: 5.000 V ±1 mV max.

Tempco: ±10 ppm/°C max.

Long term stability: ±10 ppm/SQRT(1000 hrs)

Calibration method

Voutx Rload = 20 mA fixed

resistive load

Software calibration

Calibration interval

1 year

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 25

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