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nical Reference Manual • Prin
450134 • DAQP/HSI/PAD Modules • Tech ti ng version 2.3.4 • November 18, 2020
DAQP-LV
Isolated voltage amplifier
Filter bandwidth: 300 kHz, 10 selectable lowpass lters
Input ranges: 12 ranges (10 mV to 50 V)
Input type: AC and DC coupling software selectable
TEDS: Supports electronic data sheet sensors
Signal connection:
DAQP-LV-B: Banana plugs
DAQP-LV-BNC: BNC connector
DAQP-LV-D: 9-pin D-SUB connector
DAQP-LV-LEMO: 7-pin LEMO connector (non-standard version)
DAQP-LV-SC: Screw terminals (non-standard version)
Module specifications
DAQP-LV
Input ranges unipolar and bipolar 10 mV, 20 mV, 50 mV, 100 mV, 200 mV, 500 mV, 1 V, 2.5 V, 5 V, 10 V, 25 V, 50 V
Push button selectable ranges 10 mV, 50 mV, 200 mV, 1 V, 5 V, 10 V, 50 V
Rated input voltage 33 VRMS, 46.7 VPEAK, 70 VDC according to EN-61010-1 and EN-61010-2-30
Accuracy(1)
Unipolar
10 mV to 50 mV DC ±0.04 % of reading ±40 µV
100 mV to 50 V DC ±0.04 % of reading ±0.05 % of range
Bipolar
10 mV to 50 mV DC ±0.02 % of reading ±40 µV
1 Hz to 1 kHz ±0.12 % of reading ±0.1 % of range ±40 µV
1 kHz to 10 kHz ±0.32 % of reading ±0.1 % of range ±40 µV
100 mV to 50 V DC ±0.02 % of reading ±0.05 of range
1 Hz to 1 kHz ±0.12 % of reading ±0.15 of range
1 kHz to 10 kHz ±0.32 % of reading ±0.15 of range
Input coupling DC or AC software selectable (1.5 Hz standard, custom on request down to 0.01 Hz)
Gain linearity 0.01 % of full scale
Gain drift range Typically 10 ppm/°K (max. 20 ppm/°K)
O set drift
10 mV to 200 mV
500 mV to 50 V
Uni- and bipolar
3 µV/°K
10 ppm of Range/°K
Long term stability 100 ppm/sqrt (1000 hrs)
Input resistance 1 MOhm
Bandwidth (-3 dB) 300 kHz
Filter selection Push button or software
Filters (low pass) 10 Hz, 30 Hz, 100 Hz, 300 Hz, 1 kHz, 3 kHz, 10 kHz, 30 kHz, 100 kHz
Filter characteristics 10 Hz to 100 kHz: Butterworth or Bessel 40 dB/dec (2nd order; ±1.5 dB @ f0)
300 kHz: Bessel 60 dB/dec (3rd order; 0 to -3 dB @ 300kHz)
Typical SFDR and SNR:
20 mV
1 V
50 V
300 kHz bandwidth 100 kHz bandwidth 10 kHz bandwidth
SFDR SNR SFDR SNR SFDR SNR
100 dB 72 dB 98 dB 76 dB 97 dB 84 dB
102 dB 82 dB 99 dB 93 dB 97 dB 96 dB
102 dB 82 dB 99 dB 93 dB 97 dB 96 dB
Typical CMRR 10 mV to 1 V range: 2.5 V to 50 V range:
>100 dB @ 50 Hz 90 dB @ 50 Hz
>100 dB @ 1 kHz 65 dB @ 1 kHz
83 dB @ 10 kHz 55 dB @ 10 kHz
Input overvoltage protection 350 VDC
Isolation voltage 1 kVRMS
2)
Sensor supply ±9 V (±1 %), 12 V (±5 %), 200 mA resettable fuse protected2)
Output voltage ±5 V
Output resistance <10 Ohm
Maximum output current 5 mA
Output protection Short to ground for 10 sec.
Power On default settings Software programable
Power supply ±9 VDC ±1 %
Power consumption 1.05 W without sensor supply
RS-485 interface Yes
TEDS Hardware support for TEDS (Transducer Electronic Data Sheet)
Supported TEDS chips DS2406, DS2430A, DS2432, DS2433, DS2431
Supported MSI MSI-V-ACC; MSI-V-RTD, MSI-V-CH-50
1) Conditions for accuracy: Module temperature is calibration temperature ±5 °C; humidity is 30 to 90 RH;
AC accuracy: the highest lter (300 kHz) must be activated.
For the 2 year accuracy multiply all % of range and % of reading values by 1.5
2) Although the rated input voltage is 33 VRMS, 46.7 VPEAK or 70 VDC according to EN-61010-1 and EN-61010-2-30, the galvanic isolation has been tested with
1 kVRMS for 1 min.
3) Overall current should not exceed DEWE-30-xx maximum power.
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