產品簡介
產品介紹
Analog InputInput CharacteristicsNumber of channels ........................ 4 pseudodifferentialType of ADCResolutionNI 6115 .................................. 12 bits, 1 in 4,096NI 6120 .................................. 16 bits, 1 in 65,536PipelineNI 6115 .................................. 2NI 6120 .................................. 0Sampling rateMaximumNI 6115 .................................. 10 million S/sNI 6120 .................................. 800 kS/sMinimumNI 6115 .................................. 20 kS/sNI 6120 .................................. No minimumInput impedanceAI + to AI –Range ≤ ±10 V....................... 1 MΩ in parallel with100 pFRange > ±10 V....................... 10 kΩ in parallel with40 pFAI – to AI GNDNI 6115 .................................. 100 GΩ in parallel with10 nFNI 6120 .................................. 100 GΩ in parallel with100 pFAI + to AI GNDNI 6115...................................100 GΩ in parallel with100 pFNI 6120...................................100 GΩ in parallel with100 pFInput bias current.............................±300 pAInput offset current ..........................±200 pAInput coupling .................................DC/ACMax working voltage for all analog input channelsPositive input (AI +) ...................±42 V for ±20 V and±42 V ranges;±11 V for other rangesNegative input (AI –)..................±2.5 VOvervoltage protection(AI +, AI –)......................................±42 VInput current duringovervoltage conditions ....................±20 mA maxInput FIFO size................................16 or 32 MSData transfers...................................DMA, interrupts,programmed I/ODMA mode......................................Scatter-gather