Keithley DAS-1800ST Series User Manual page 98

Table A-2. Analog Input Specifications for DAS-1800HR Series (cont.)
Feature
Range/gain
Unipolar
Bipolar
Absolute accuracy
Typical
Maximum
Relative Accuracy
Typical
Maximum
Temperature coefficient of
accuracy (includes ADC)
Offset
1
Linearity
Throughput
Input Impedance
Input bias current
A-4
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DAS-1802HR/HR-DA
• 0.0 to +10V for gain = 1
• 0.0 to +5.0V for gain = 2
• 0.0 to +2.5V for gain = 4
• 0.0 to 1.25V for gain = 8
• ±10V for gain = 1
• ±5.0V for gain = 2
• ±2.5V for gain = 4
• ±1.25V for gain = 8
0.005% of reading ±1 LSB for all ranges
• 0.005% of reading ±1.5 LSB for gain = 1
• 0.01% of reading ±1.5 LSB maximum all others
0.001% of reading ±1 LSB
0.001% of reading ±1.5 LSB maximum range of 0 to 70˚C
• ±5µV/˚C maximum for bipolar
• ±5µV/˚C maximum for unipolar
Gain • ±7.5 ppm/˚C
Integral: ±1.5 LSBs maximum
Differential: ±1 LSB
• Single channel: 100 ksamples/s
• Multiple channels (no gain change): 98 ksamples/s
• Multiple channels (w/gain change): 60 ksamples/s for gains of 1 to 8
Refer to "Maximum Achievable Throughput Rates" on page 2-9
100MΩ in parallel with 75pF
• ±2nA max. @ 25˚C
• ±100nA max. over operating range
Specifications