Advantech WISE-750, Руководство пользователя

Страница: 36 / 44

WISE-750 User Manual 30
A.1 Analog Input
A.1.1 Functions

Channels: 4 single-ended, simultaneous sampling

Input coupling: DC

Input range: ±10 V, 0 ~ 20 mA

A/D converter (ADC) resolution: 16 bits

A/D converter (ADC) type: successive approximation (SAR)

Maximum sample rate (fs): 200 KS/s

Sample clock source: internal

Maximum working voltage for all analog inputs: ±15 V

Integral non-linearity error (INLE): ± 2 LSB

Differential non-linearity error (DNLE) : ± 1 LSB

Voltage Input impedance: 1 MΩ in parallel with 5 pF

Current Input impedance: 500 Ω

Built-in memory: 4096 samples
A.1.2 Voltage Measurement Accuracy

Gain error
Operating temperature within 5 °C of last auto-calibration temperature:
< ±0.02%
Over full operating temperature range: < ±0.08%

Offset error
Operating temperature within 5 °C of last auto-calibration temperature:
< ±0.7 mV
Over full operating temperature range: < ±9 mV
A.1.3 Current Measurement Accuracy

Gain error
Operating temperature within 5 °C of last auto-calibration temperature: <
±0.03%
Over full operating temperature range: < ±0.09%

Offset error
Operating temperature within 5 °C of last auto-calibration temperature: < ± 10
μA
Over full operating temperature range: < ± 45 μA
A.1.4 Dynamic Performance

-3 dB bandwidth: 23 KHz

Idle channel noise: 0.61 mVrms

Effective number of bits (ENOB): 13.5 Bits @(fin = 1KHz)

Signal-to-Noise Ration (SNR): 85 dB @(fin = 1KHz)

Total Harmonic Distortion (THD): -91 dB @(fin = 1KHz)

Total Harmonic Distortion pulse Noise (THD+N): -84 dB @(fin = 1KHz)