The Signal Conditioning Wildcard^TM
Interface to Analog Sensors and Actuators

signal conditioning module increases the input and output of analog DAC

The Signal Conditioning Wildcard is used with the Analog I/O Wildcard to increase its input and output voltage range and to add 4-20 mA current input and output capability.

The Signal Conditioning Wildcard amplifies four DAC outputs on the Analog I/O Wildcard to provide 0 to 10V outputs and attenuates four A/D inputs to allow voltages up to 10 volts. It also converts the other four DAC outputs on the Analog I/O Wildcard to 0 to 20 mA outputs and converts the other four A/D inputs to 0 to 20 mA inputs.

4-20mA Transmitter/Receiver

For signal conditioning and conversion, the Signal Conditioning Wildcard can act as a 4-20mA transmitter or receiver by converting between current and voltage. For transmitting, the Analog I/O Wildcard puts out voltage and the Signal Conditioning Wildcard converts that to a current to send it as a 4-20mA current signal to other devices, such as valves, flow controllers, heaters or motors that need to be controlled with it.

It also acts as a receiver. It will receive a 4-20mA current loop coming from a sensor (for example, a pressure transducer) and convert it to a voltage that the A/D Wildcard can read.

The Signal Conditioning Wildcard is easily customized for other input/output voltage or current ranges.

Specifications

0-10 V Voltage Inputs
Input Channels	4 unipolar single-ended; pairs of channels may be used for differential input
Resolution	16-bits ( 0 - 65,535 counts)
Input Voltage Range	0 to 10.24 V is converted to 0-2.048 V presented to the Analog I/O Wildcard (range customizable by component substitution)
Input Filtering	Single-pole 265 Hz low-pass filter, reconfigurable by component substitution
Input Impedance	376 KΩ
Offset and Scale Errors	±0.1% of FS offset error and ±1-2% of FS gain error are added to any A/D offset and gain errors
0-10 V Voltage Outputs
Output Channels	4 unipolar single-ended
Resolution	12-bits ( 0 - 4095 counts)
Full Scale Output Voltage	0 to 10.24 V is produced from 0-4.096 V provided by the Analog I/O Wildcard (range customizable by component substitution)
Settling Time	300 msec typically, slew rate is 0.1V/msec
Allowed Load Resistance	≥1KΩ, Op-amp output sources and sinks up to 10 mA, sink current limited at V_o=0 by 39Ω output resistance.
Offset and Scale Errors	±0.05% of FS offset error and ±1-2% of FS gain error are added to any A/D offset and gain errors
0-20 mA Current Inputs
Input Channels	4 unipolar single-ended current sinks
Resolution	16-bits ( 0 - 65,535 counts)
Input Current Range	0 to 20.48 mA is converted to 0-2.048 V presented to the Analog I/O Wildcard (range customizable by component substitution)
Input Protection	Protected to -30V, +15V, or +100 mA steady state input
Input Resistance	200 Ω (for up to 50 mA input, dynamic resistance drops toward 100 Ω for greater currents)
Offset and Scale Errors	No offset error and ±1% of FS gain error is added to any A/D offset and gain errors
0-20 mA Current Outputs
Output Channels	4 unipolar single-ended current sources
Resolution	12-bits ( 0 - 4095 counts)
Output Current Range	0 to 20.48 mA is produced from 0-4.096 V provided by the Analog I/O Wildcard (range customizable by component substitution)
Output Compliance	Up to 10V
Allowed Load Resistance	Any resistance ≤ 500Ω
Offset and Scale Errors	±0.04 mA offset error, ±0.05 mA/V compliance error, and ±1% typ gain error added to DAC offset and gain errors.

Documentation and Pricing

Signal Conditioning Wildcard Manual html | pdf
Price Info: Part#: W-SIC

The Signal Conditioning WildcardTM Interface to Analog Sensors and Actuators

4-20mA Transmitter/Receiver

Specifications

Documentation and Pricing

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The Signal Conditioning Wildcard^TM
Interface to Analog Sensors and Actuators