Measurement-computing PCI-DAS6013 Manuel d'utilisateur télécharger pdf (Page 33)

PCI-DAS6013 and PCI-DAS6014 User's Guide Specifications

Parametrics

Max working voltage

(signal + common-mode)

±11 V

CMRR @ 60 Hz

±10 V range: 85 dB

±5 V range: 85 dB

±500 mV range: 93 dB

±50 mV range: 93 dB

Small signal bandwidth, all

ranges

425 kHz

Input coupling

Input impedance

100 GOhm in normal operation.

2 kOhm typ in powered off or overload condition.

Input bias current

±200 pA

Input offset current

±100 pA

Absolute maximum input

voltage

±25 V powered on, ±15 V powered off. Protected Inputs:

 CH<15:0> IN

 AISENSE

Crosstalk

Adjacent channels: -75 dB

All other channels: -90 dB

Noise performance

Table 4 summarizes the noise performance for the PCI-DAS6013 and PCI-DAS6014. Noise distribution is

determined by gathering 50 K samples with inputs tied to ground at the user connector. Samples are gathered at

the maximum specified single-channel-sampling rate. This specification applies to both single-ended and

differential modes of operation.

Table 4. Analog input noise performance specifications

Range

Typical Counts

LSBrms

±10 V

0.9

±5 V

0.9

±500 mV

1.1

±50 mV

6.7

Analog output (PCI-DAS6014 only)

D/A converter type

Double-buffered, multiplying

Resolution

16 bits, 1-in-65536

Number of channels

2 voltage output

Voltage range

±10 V

Monotonicity

16-bits, guaranteed monotonic

DNL

±2 LSB typ

Slew rate

15 V/µs min

Settling time (full scale step)

8 µs to ±1.0 LSB accuracy

Noise

360 uVrms, DC to 400 kHz BW

Glitch energy

200 mV @ 1 µs duration, mid-scale

Current drive

±5 mA

Output short-circuit duration

Indefinite @ 25 mA

Output coupling

Output impedance

0.1 ohms max

Power up and reset

DACs cleared to 0 volts ±250 mV max

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