Measurement Computing USB-1208HS-4AO - Manual (Page 17)

USB-1208HS-4AO User's Guide Specifications
17
Table 2. Calibrated absolute accuracy
Range Accuracy (mV)
±20 V (DIFF mode) ±9.55 typ, ±13.18 max
±10 V (DIFF mode) ±4.59 typ, ±6.23 max
±5 V (DIFF mode) ±2.25 typ, ±2.75 max
±10 V (SE mode) ±5.10 typ, ±8.06 max
±5 V (SE mode) ±2.63 typ, ±4.03 max
±2.5 V (SE mode) ±1.59 typ, ±2.70 max
0 – 10 V (SE mode) ±3.29 typ, ±5.13 max
Table 3 summarizes the noise performance for the USB-1208HS-4AO. Noise distribution is determined by
gathering 50 kS with inputs tied to ground at the user connector. Samples are gathered at the maximum
specified sample rate of 1 MS/s.
Table 3. Noise performance
Range Typical counts LSBrms
±20 V (DIFF mode) 3 0.45
±10 V (DIFF mode) 3 0.45
±5 V (DIFF mode) 3 0.45
±10 V (SE mode) 5 0.91
±5 V (SE mode) 5 0.91
±2.5 V (SE mode) 5 0.91
0 – 10 V (SE mode) 5 0.91
Table 4. Input settling time in µs, typical
Condition Range ±1 LSB ±4 LSB ±8 LSB
+ full-scale to –full-scale
channel switch, same range
to same range ±10 V 1.5 1.1 1.0
±5 V 2.1 1.1 1.0
±2.5 V 2.2 1.1 1.0
0 V to 10 V 2.6 1.1 1.0