Measurement-computing E-1608 Bedienungsanleitung PDF herunterladen (Seite 21)

E-1608 User's Guide Specifications

Accuracy

Analog input DC voltage measurement accuracy

Table 2. DC Accuracy components and specifications. All values are (±)

Range

Gain error

(% of reading)

Offset error

(µV)

INL error

(% of range)

Absolute

accuracy at

Full Scale

(µV)

Gain

temperature

coefficient

(% reading/°C)

Offset

temperature

coefficient

(µV/°C)

±10 V

0.024

915

0.0076

4075

0.0014

±5 V

0.024

686

0.0076

2266

0.0014

±2 V

0.024

336

0.0076

968

0.0014

±1 V

0.024

245

0.0076

561

0.0014

Noise performance

For the peak-to-peak noise distribution test, a differential input channel is connected to AGND at the input

terminal block, and 16384 samples are acquired at the maximum rate available at each setting.

Table 3. Noise performance specifications

Range

Counts

LSBrms

±10 V

0.91

±5 V

0.91

±2 V

1.06

±1 V

1.36

Settling time

Settling time is defined as the accuracy that can be expected after one conversion when switching from a

channel with a DC input at one extreme of full scale to another channel with a DC input at the other extreme of

full scale. Both input channels are configured for the same input range.

Table 4. Input settling time specifications in µS, typical

Range

4 µS settling accuracy (% FSR)

6 µS settling accuracy (% FSR)

10 µS settling accuracy (% FSR)

±10 V

0.0061

0.0031

0.0015

±5 V

0.0061

0.0031

0.0015

±2 V

0.0061

0.0031

0.0015

±1 V

0.0061

0.0031

0.0015

Analog output

Table 5. Analog output specifications

Parameter

Condition

Specification

Number of channels

Resolution

16 bits

Output ranges

Calibrated

±10 V

Output transient

Powered on

Duration: 5 ms

Amplitude: 2 V p-p

Powered off

Duration: 400 ms

Amplitude: 10 V p-p

Differential

non-linearity

16-bit monotonic

±0.35 LSB typ

±1 LSB max

Output current

AOUTx pins

±3.5 mA max (Note 2)

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 27 28 29

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