SCXI-1122 National Instruments Multiplexer Module 182368-01

Description

The
NI SCXI-1122
is a
16-Channel
,
Isolated Transducer Multiplexer Module,
which is designed for signal conditioning. Apart from
16 isolated channels
, this model has two isolated excitation channels as well. It is an excellent choice for applications like the signal conditioning of strain gauges, thermistors, RTDs, volt sources, millivolt sources, and thermocouple.
This module is designed to operate in two modes. In two-wire scan mode, all of its 16 input channels are used for input. However, in four-wire scan mode eight of the upper channels are used as sense leads, while the eight lower eight channels are configured and utilized as current output channels. The
NI SCXI-1122
can operate with the
National Instruments
Lab-PC+, MIO-16
, and the
SCXI-1200
boards. For single channel reads, the user can also utilize the
PC-LPM-16
board with the
SCXI-1122
.
The
NI SCXI-1122
has a
50-pin male rear connector
and a 48-pin female front connector. The integrated amplifier of this module operates at
1 GΩ input impedance
with normal power on and with
100 kΩ
with power off. As far as its dynamic characteristics are concerned, this model comes with 4 Hz (-10 dB) or
4 kHz
software selectable bandwidth. This model has a 3-pole RC, integrated filter, which is designed to operate at 4 Hz (-10 dB) cutoff frequency and 60 dB at
4 Hz bandwidth
NMR. In addition, this model has 2 output channels. Its voltage and current level remain around 3.333 V ±0.04% and 1.0 mA ±0.04% respectively.