Measurement-computing USB-1608GX-2AO Manual de usuario descargar pdf (Pagina 18)

USB-1608GX-2AO User's Guide Specifications

Analog output

Table 5. Analog output specifications

Parameter

Condition

Specification

Number of channels

Resolution

16 bits

Output ranges

Calibrated

±10 V

Output transient

Host computer is reset, powered on, suspended,

or a reset command is issued to the device

Duration: 500 µs

Amplitude: 2 V p-p

Powered off

Duration: 10 ms

Amplitude: 7 V peak

Differential

non-linearity

±0.25 LSB typ

±1 LSB max

Output current

AOUTx pins

±3.5 mA max

Output short-circuit

protection

AOUTx connected to AGND

Unlimited duration

Output coupling

Power on and

reset state

DACs cleared to zero-scale: 0 V, ±50 mV

Output noise

30 µVrms

Trigger source

TRIG (see External trigger on page 19)

Sample clock source

Internal D/A clock or external D/A clock

(AOCKI pin)

Output update rate

500 kHz / (number of channels in scan)

Settling time

To rated accuracy, 10 V step

40 µs

Slew rate

9 V/µs

Throughput

Software paced

33 to 4000 S/s typ, system-dependent

Hardware paced

500 kS/s max, system-dependent

Note 1: Leave unused AOUTx output channels disconnected.

Note 2: AOUTx defaults to 0 V whenever the host computer is reset, powered on, suspended, or a reset

command is issued to the device.

Table 6. Calibrated absolute accuracy specifications

Range

Absolute accuracy (±LSB)

±10 V

16.0

Table 7. Calibrated absolute accuracy components specifications

Range

% of reading

Offset

(±mV)

Offset tempco

(µV/°C)

Gain tempco

(ppm of range/°C)

±10 V

±0.0183

1.831

12.7

Table 8. Relative accuracy specifications (±LSB)

Range

Relative accuracy (INL)

±10 V

4.0 typ

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 24 25

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