UMDAS 0802DA User's Guide

Specifications

Note 2: Maximum throughput scanning to PC memory is machine dependent. The rates specified are for Windows XP only. Maximum rates on operating systems that predate XP may be less and must be determined through testing on your machine

Note 3: The ADS7871 converter only returns 13-bits (0 to 8192 codes) in single-ended mode.

Note 4: Extrapolating the long term drift accuracy specifications will provide the approximate long term drift of the UMDAS 0802DA intermediate input ranges.

Table 4-2. Accuracy, differential mode

Range

Absolute Accuracy 25°C (±mV)

Absolute Accuracy 0 to 50°C (±mV)

 

 

 

±20 V

10.98

49.08

±10 V

7.32

33.42

±5 V

3.66

20.76

±4 V

2.92

19.02

±2.5 V

1.83

14.97

±2 V

1.70

14.29

±1.25 V

1.21

12.18

±1 V

1.09

11.63

 

Table 4-3. Accuracy, single-ended mode

Range

Absolute Accuracy 25°C (±mV)

Absolute Accuracy 0 to 50°C (±mV)

 

 

 

±10 V

10.98

49.08

 

Table 4-4. Noise performance, differential mode

 

 

 

Range

Typical counts

Least significant bitroot mean square (LSBrms)

 

 

 

±20 V

8

1.21

±10 V

8

1.21

±5 V

9

1.36

±4 V

10

1.51

±2.5 V

12

1.81

±2 V

14

2.12

±1.25 V

18

2.72

±1 V

22

3.33

 

Table 4-5. Noise performance, single-ended mode

 

 

 

Range

Typical Counts

LSBrms

 

 

 

±10 V

8.0

1.21

4-2