16-Bit Analog Output Module Reference Design for Programmable Logic Controllers (PLC)
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Key Document
Description
This reference design provides a complete 4-channel, 16-bit analog output module design for Programmable Logic Controllers (PLCs). It is designed and fully tested to meet IEC61000-4 EMC and surge requirements for industrial automation systems. The small form-factor design implements four 16-bit digital-to-analog converters with integrated output drivers capable of driving several current and voltage output ranges. Digital data and control lines are galvanically isolated from the PLC host using TI’s high-speed, 4242-volt peak, digital isolator technology. The design also includes an over-current protected, isolated power supply providing all necessary module voltages. With full documentation, test results, design files and necessary firmware, the design makes it easier to evaluate complete signal chain performance and reduces time to market.
Features
- Designed to comply with IEC61000-4 standards for ESD, EFT and Surge
- 4-Channel 16-bit DAC based configurable Analog Outputs
- Voltage Outputs: ± 10V, 0 - 10V, ± 5V, 0 - 5V
- Current Outputs: 0 - 20 mA, 4 - 20 mA, 0 - 24mA
- Voltage Output Accuracy: +/- 0.2% FSR and Current Output Accuracy: +/- 0.2% FSR
- Designed with output filtering, protection circuitry and integrated 15kV ESD protection
- 24VDC powered with onboard isolated power supplies
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Schematic/Block Diagram
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Test Data
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Bill of Materials (BOM)
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TI Devices (11)
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| Sample & Buy |
Design Kits & Evaluation Modules |
| DAC7750 |
12-bit, single-channel, programmable current output DAC for 4-20mA current loop applications |
Digital-to-analog converters (DACs) |
Sample & Buy |
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| DAC7760 |
12-bit, single-channel, programmable current/voltage output DAC for 4-20mA current loop applications |
Digital-to-analog converters (DACs) |
Sample & Buy |
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| DAC8750 |
16-Bit Single-Channel Programmable Current Output DAC for 4-20mA Current-Loop Applications |
Digital-to-analog converters (DACs) |
Sample & Buy |
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| DAC8760 |
16-Bit Single-Channel Programmable Current/Voltage Output DAC for 4-20mA current loop applications |
Digital-to-analog converters (DACs) |
Sample & Buy |
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| ISO7141CC |
4242-VPK Small-Footprint and Low-Power 3/1 Quad Channel Digital Isolator with Noise Filter |
Isolation |
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| LM5017 |
7.5-100V Wide Vin, 600mA Constant On-Time Synchronous Buck Regulator |
Step-down (buck) |
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| LM5069 |
Positive High Voltage Hot Swap / Inrush Current Controller with Power Limiting |
Power switches |
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| OPA188 |
Precision, Low-Noise, Rail-to-Rail Output, 36V Zero-Drift Operational Amplifier |
Operational amplifiers (op amps) |
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| TPS7A16 |
60-V, 5-µA IQ, 100-mA low-dropout (LDO) voltage regulator with enable and power good |
Power management |
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| TPS7A30 |
Vin -3V to -36V, -200mA, Ultra-Low-Noise, High-PSRR, Low-Dropout (LDO) Linear Regulator |
Power management |
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| TPS7A47 |
36-V, 1-A, 4.17-μVRMS, RF low-dropout (LDO) voltage regulator |
Power management |
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CAD/CAE symbols
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Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.
Step 1: Download and install the free download.
Step 2: Download the Symbol and Footprint from the CAD.bxl file table.
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Technical Documents
View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.
User guides (1)
| Title | Abstract | Type | Size (KB) | Date |
| | | PDF | 11898 |
09 Jan 2014
|
Design files (4)
| | | PDF | 3701 |
29 Jan 2014
|
| | | ZIP | 740 |
29 Jan 2014
|
| | | ZIP | 28 |
29 Jan 2014
|
| | | PDF | 402 |
29 Jan 2014
|
More literature (2)
| | | PDF | 552 |
13 Mar 2015
|
| | | PDF | 783 |
21 Aug 2014
|
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