Measurement-computing BTH-1208LS Instrukcja Użytkownika Pobierz pdf (Strona 20)

Chapter 4

Specifications

All specifications are subject to change without notice.

Typical for 25°C unless otherwise specified.

Specifications in italic text are guaranteed by design.

Analog input

Table 1. Analog input specifications

Parameter Condition Specification

A/D converter type Successive approximation type

Input voltage range for linear operation CHx to GND

Single-ended mode: ±10 V max

Differential mode: –10 V min, 20 V max

Absolute maximum input voltage

CHx to GND

±25 V max

Input impedance 140 kΩ

Input current (Note 1) V

= +10 V 70 µA typ

= 0 V –12 µA typ

= –10 V –94 µA typ

Number of channels 8 single-ended or 4 differential; software-selectable

Input ranges Single-ended ±10 V, G=2

Differential ±20 V, G=1

±10 V, G=2

±5 V, G=4

±4 V, G=5

±2.5 V, G=8

±2.0 V, G=10

±1.25 V, G=16

±1.0 V, G=20

Software-selectable

Throughput (Note 2) Software paced 10 S/s typ, system-dependent (Bluetooth)

250 S/s typ, system-dependent (USB)

Continuous scan 0.014 S/s to 1024 S/s (Bluetooth)

0.014 S/s to 47 kS/s (USB)

BURSTIO 0.014 S/s to 47 kS/s to 12K (12,288) sample FIFO

Transfer rate to host is limited to 1024 S/s

(Bluetooth)

Channel gain queue Software selectable. 8 elements in SE mode,

4 elements in DIFF mode.

One gain element per channel. Elements must be

unique and listed in ascending order.

Resolution (Note 3) Differential 12 bits, no missing codes

Single-ended 11 bits

Integral linearity error ±1 LSB typ

Differential linearity error ±0.5 LSB typ

Repeatability ±1 LSB typ

Trigger source Software-selectable External digital: TRIG

Software-selectable

Pacer source Software-selectable  Internal

 External (AICKI), rising edge triggered

Software-selectable

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 29 30

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