Measurement-computing BTH-1208LS Manual de usuario descargar pdf (Pagina 21)

BTH-1208LS User's Guide Specifications

Note 1: Input current is a function of applied voltage on the analog input channels. For a given input

voltage, V

, the input leakage is approximately equal to (8.181 * V

– 12) µA.

Note 2: Maximum throughput when scanning is machine dependent.

Note 3: The AD7870 converter only returns 11 bits (0 to 2,047 codes) in single-ended mode.

Accuracy

Table 2. Accuracy, differential mode

Range Accuracy (LSB)

±20 V 5.1

±10 V 6.1

±5 V 8.1

±4 V 9.1

±2.5 V 12.1

±2 V 14.1

±1.25 V 20.1

±1 V 24.1

Table 3. Accuracy, single-ended mode

Range Accuracy (LSB)

±10 V 4.0

Table 4. Accuracy components, differential mode – all values are (±)

Range % of Reading Gain Error at FS (mV) Offset (mV) Accuracy at FS (mV)

±20 V 0.2 40 9.766 49.766

±10 V 0.2 20 9.766 29.766

±5 V 0.2 10 9.766 19.766

±4 V 0.2 8 9.766 17.766

±2.5 V 0.2 5 9.766 14.766

±2 V 0.2 4 9.766 13.766

±1.25 V 0.2 2.5 9.766 12.266

±1 V 0.2 2 9.766 11.766

Table 5. Accuracy components, single-ended mode – all values are (±)

Range % of Reading Gain Error at FS (mV) Offset (mV) Accuracy at FS (mV)

±10 V 0.2 20 19.531 39.531

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 29 30

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Measurement-computing BTH-1208LS Manual de usuario Pagina 21