ADwin-Pro
Hardware, manual version 2.9, June 2006
59
Pro I: Analog Input Modules
Pro-AIn-8/16 Rev. C
ADwin
5.5.10 Pro-AIn-8/16 Rev. C
The analog input module
has a 16-bit ADC, 8 differential
inputs and a programmable gain (PGA). The module can be combined with
amplifiers, filters, Pro-TC and Pro-PT modules.
The inputs are available with the following connectors:
– Pro-AIn-8/16: shielded LEMO-sockets, CAMAC European norm.
– Pro-AIn-8/16-D: DSub socket 37-pin.
The module
is an advanced development of the
with an input voltage range of ± 10V and a gain, program-
mable by software of 1, 2, 4 or 8. The adjustment of gain and offset is made
by software (see
chapter 6.3.1 "Calibration per Software"
In addition, the module has a sequential control, which by request reads the
measurement values from all input channels successively.
Fig. 99 –
: Block diagram
Input channels
8 differential via multiplexer
Resolution
16 bit
Conversion time
max. 5µs
Sampling rate
max. 200ksps
Multiplexer settling time
6µs
Measurement ranges
±10V
Gain
1, 2, 4, 8 software selectable
Accuracy
INL
±2 LSB typical
DNL
max. ±1 LSB
Input resistance
330k
Ω
, ±2%
Input over-voltage
±35V
Offset error
adjustable
Offset drift
±30 ppm/ºC
Connector
8 LEMO sockets
optional: 37-pin DSub socket
: Specification
ADwi
n
-P
ro
bus
A
D
MUX
1
330k
330k
2
330k
330k
8
330k
330k
. . . . . .
Addr.
Data
Data
Registers
Data
PGA
Vu= 1, 2, 4, 8
. . . . .
Address
Decoder
Sequence
Control
Control