Specifications99Voltage Measurement SpecificationsTable 26 lists the voltage measurement specifications for the analog input subsystem on theDT9828 module.Table 26: Voltage Measurement SpecificationsFeature Specificationsaa. Conditions for specification:Module is calibrated at 23 C.Values are typical for the module operated in a stable 23°C ±5°C environment.Valid for 1 year from calibration.Number of voltage channels Up to 8 differential voltage inputsA/D converter resolution 24-bitsFull-scale input range ±156 mVAggregate sample rate 600 Samples/s maximumSampling mode MultiplexedDC differential input impedance 10 MΩInput bias current 250 nAInput common mode voltage ±500 VDifferential input voltage ±10 V maximum (protection)Common mode rejection @ 60 Hz and 50 Hz 120 dBNoise 3 μV pk-pk at maximum throughput (see Table 25 onpage 97 for more information)Input signal bandwidth, –3 dB Total throughput rate x 2, in Hz (see “Input SignalBandwidth” on page 100 for more information)Offset error bb. Voltage source impedance <= 50 ohms.±20 μVGain error ±0.03% of readingLinearity error ±2 μVOffset error tempco ±20 nV/°CGain error tempco ±0.0015% of reading/°C
