Pro II: Analog Input Modules
Pro II-AIn-8/18-8B Rev. E
ADwin
64
ADwin-Pro II
Hardware, manual Dec. 2018
5.5.4 Pro II-AIn-8/18-8B Rev. E
Analog input module Pro II-AIn-8/18-8B Rev. E with an 18-bit ADC, 16 analog
inputs and a programmable amplifier (PGA). The module is based upon Pro II-
AIn-32/18-D Rev. E with an additional board holding 8 plug-in slots for 8B mod-
ules.
The 16 inputs are divided to 8 inputs for 8B modules and 8 differential inputs.
The inputs are provided on two 37-pin D-Sub female connectors; for pin
assignments see fig. 48.
The input voltage range after 8B modules is ±10V. Gain is software selectable
to 1, 2, 4 or 8. The adjustment of gain and offset is done by software (see chap-
ter 6 "Calibration").
Ex works the inputs are connected to the ground of the Pro device. Alterna-
tively a GND level signal–common for all inputs–can be connected to one of
the AGND pins. The ground connection to the Pro device should be split up,
by switching the DIL switch (see fig. 42) to position
GND
LIFT
.
Do not run the module without ground connection.
The module includes a sequential control, which can read measurement val-
ues from several or all input channels sequentially.
The module can control an upper and lower limit for each channel separately.
.Input channels
16 via multiplexer:
8 for 8B modules, 8 differential
Resolution
18 bit
Conversion time
max. 2µs
Sampling rate
max. 500ksps
Multiplexer settling time
2.5µs
Measurement range
±10V
Gain
1, 2, 4, 8 software selectable
Accuracy
INL
±4 LSB typical
DNL
max. ±1 LSB
Input resistance
330k
Ω
, ±2%
Input over-voltage
±35V
Offset error
adjustable
Offset drift
±30ppm/ºC
Connector
37-pin D-Sub female connector
Module width
15 HP
Fig. 47 – Pro II-AIn-8/18-8B Rev. E: Specification
