Jäger ADwin-Pro, System And Hardware Description

Page: 44 / 218

Pro I: Analog Input Modules
Pro-AIn-8/12 Rev. A
ADwin
40
ADwin-Pro Hardware, manual version 2.9, June 2006
5.5.1 Pro-AIn-8/12 Rev. A
To this module you find an improved successor module Pro-AIn-8/14 Rev. A
(see page 44 ).
The analog input module Pro-AIn-8/12 Rev. A has a 12 bit ADC and 8 differ-
ential inputs. A programmable amplifier (PGA) and a multiplexer (MUX) are
connected before the ADC.
The inputs are available with the following connectors:
– Pro-AIn-8/12: shielded LEMO-sockets, CAMAC European norm.
– Pro-AIn-8/12-D: DSub socket 37-pin.
The module can be combined with amplifiers, filters, thermocouples and PTC
modules.
The input voltage range can be selected by jumpers (see page 41 ).
Fig. 52 – Pro-AIn-8/12 Rev. A : Block diagram
Input channels 8 differential via multiplexer
Resolution 12 bit
Conversion time max. 8.5µs
Sampling rate max. 117ksps
Measurement ranges 0…10V, ±5V, ±10V
Gain software selectable: 1, 2, 4, 8
Accuracy INL max. ±1 LSB
DNL max. ±1 LSB
Input resistance 100k
Ω
, ±2%
Input over-voltage ±35V
Offset error adjustable
Offset drift ±30 ppm/ºC of full scale range
Connector 8 LEMO sockets
optional: 37-pin DSub socket
Fig. 53 – Pro-AIn-8/12 Rev. A : Specification
ADwi
n
-Pro
bus
A
D
MUX
1
100k
100k
2
100k
100k
8
100k
100k
. . . . . .
Addr.
Data
Data
Register
Address
Decoder
Data
PGA
Vu= 1, 2, 4, 8
. . . . .