An automatic test program is necessary to step through the codes and analyze the data. This is not provided on the CD but must be implemented by the customer to correspond to the requirements of the particular multimeter used in the test setup.

This allows the multimeter readings corresponding to each code to be loaded into an Excel spreadsheet on the PC. Available Product Models to Sample. Please Select a Region. Please Select a Language.

Features & Benefits

The circuit shown in Figure 1 provides a full function, flexible, programmable analog output solution that meets most requirements for programmable logic controller PLC and distributed control system DCS applications. The AD low power 0.

This circuit provides all the typical voltage and current output ranges with bit resolution and no missing codes, 0. This circuit describes one implementation of a family of driver and DAC products, from which various devices can be selected to achieve desired performance.

For applications not requiring bit resolution, the AD bit , and AD bit are available, but have internal references. Functional Block Diagram Figure 5 shows a functional block diagram of the test setup. Nylon hardware should be used to firmly secure the two boards, using the holes provided at the ends of the pin connectors. Community Discussion In Engineering Zone.

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The voltage and current output pins can be connected together to configure the system as a single-channel output if desired. Generally, the current output circuit needs at least one precision resistor for current sensing. The current accuracy and temperature drift characteristic of the circuit depends partly on the resistor as well as the reference. The external resistor is selected via the input shift register.


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    • The on-chip reference can drive the reference input of all four ADs, has a low output impedance of 0. The ADR incorporates a power-on reset circuit to ensure that the DAC output powers up to 0 V and remains there until a valid write command takes place.

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    The output voltage range of the ADR is 0 V to 2. In addition, the reference output voltage of the ADR is 2. The ADuM is a triple-channel digital isolator.


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      • The ADuM is a quad-channel digital isolator with an integrated, isolated, dc-to-dc converter. Construct the circuit on a multilayer printed circuit board PCB board with a large area ground plane. The AD has highly flexible and configurable output ranges that can be tailored to meet the needs of the application. The AD range was set for 0 V to 5 V. The test results for all the other ranges are listed in Table 1.

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      Note that the output ranges 3. There is a lower dead band about 10 mV referenced to GND. All the linearity test results were calculated using a reduced code range of to 65, The AD can accept 0 V to 4. The AD can accept a 0 V to 2. Using My Computer , locate the drive that contains the evaluation software CD and open the Readme file. Follow the instructions contained in the Readme file for installing and using the evaluation software.