8-ch Isolated High Voltage Analog Input Module Reference Design
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Key Document
Description
The TIDA-00764 reference design is a high voltage analog input module with eight channels. Each channel can be used for both, voltage and current measurement. The TI Design uses the 16-bit analog-to-digital converter (ADC) ADS8681 that can handle input voltage of up to ±12.288V. This make any preprocessing of standard input voltages in the industrial space unnecessary. In addition, four channels of the design are able to handle common-mode (CM) voltages of up to ±160V. Therefore, the user does not need to worry about ground loops or compensation currents flowing between the connected inputs.
Features
- High voltage inputs of up to ±12.288V
- Voltage and current measurement for every channel
- 4 channels with common-mode of up to ±160V
- -85dB crosstalk rejection for adjacent channels
- 100MOhm input impedance
- Surge transient immunity according to EN 61000-4-5 class 2 (±1kV, 24A)
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Design Guide
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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 |
ADS8681 |
16-Bit 1MSPS Single-Supply SAR ADC Data Acquisition System With Programmable Bipolar Input Ranges |
Analog-to-digital converters (ADCs) |
Sample & Buy |
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INA149 |
High Common Mode Voltage Difference Amplifier |
Amplifiers |
Sample & Buy |
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ISO7140CC |
4242-VPK Small-Footprint and Low-Power 4/0 Quad Channel Digital Isolator with Noise Filter |
Isolation |
Sample & Buy |
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ISO7141CC |
4242-VPK Small-Footprint and Low-Power 3/1 Quad Channel Digital Isolator with Noise Filter |
Isolation |
Sample & Buy |
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MUX36S08 |
MUX36xxx 36-V, Low-Capacitance, Low-Leakage-Current, Precision, Analog Multiplexers |
Switches & multiplexers |
Sample & Buy |
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OPA192 |
High-Voltage, Rail-to-Rail Input/Output, 5µV, 0.2µV/˚C, Precision Operational Amplifier |
Operational amplifiers (op amps) |
Sample & Buy |
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SN74AHC594 |
8-Bit Shift Registers With Output Registers |
Flip-flop/latch/register |
Sample & Buy |
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SN74LVC1G332 |
Single 3-Input Positive-OR Gate |
Gate |
Sample & Buy |
Not Available |
SN74LVC2G86 |
Dual 2-Input Exclusive-Or Gate |
Gate |
Sample & Buy |
Not Available |
TPS55010 |
2.95V To 6V Input, 2W, Isolated DC/DC Converter with Integrated FETS |
Offline & isolated DC/DC controllers & converters |
Sample & Buy |
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TS5A23157 |
Dual 10-Ohm SPDT Analog Switch |
Switches & multiplexers |
Sample & Buy |
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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 | 1677 |
30 Aug 2016
|
Design files (6)
| | ZIP | 601 |
24 Jun 2016
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| | ZIP | 2326 |
24 Jun 2016
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| | PDF | 3865 |
24 Jun 2016
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| | PDF | 690 |
24 Jun 2016
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| | PDF | 77 |
24 Jun 2016
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| | PDF | 1712 |
24 Jun 2016
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