LDC1000QEVM

LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module User's Guide Literature Number: SNAU150B September 2013 – Revised November 2019 Chapter 1 SNAU150B – September 2013 – Revised November 2019 LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module 1.1 Overview The LDC10xx Evaluation Module is designed to provide an example LC tank and coil structure application which interfaces to a host computer. The module can be used independently of the GUI by the on-board embedded LED, which demonstrates threshold detection. Figure 1-1. Evaluation Module The EVM includes an example PCB sensor which is a 2 layer, 23 turn, 14mm diameter inductor with a 100pF 1% NP0 capacitor connected in parallel to form an LC tank. The EVM is perforated at two locations to provide the option to interface to various system configurations. The first perforation, between the coil and the LDC10xx, can be used to snap off the PCB coil and connect a custom coil. The second perforation is between the LDC10xx and the MSP430, and provides the option to connect the LDC10xx and the sensor to a different system or to use multiple sensors in one system for prototyping. Figure 1-2. LDC1000+Sensor When the evaluation module first powers up from the USB port, it will flash a series of green and red LED lights to indicate self-test. When the self-test is finished, the green LED indicates the status of the LDC10xx INTB pin. When the INTB pin is asserted, the green LED is lit. By default, INTB is configured for threshold detection. 1.2 Sensing Solutions EVM GUI The Sensing Solutions EVM GUI provides direct device register access, user-friendly configuration, and data streaming. 2 LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback Copyright © 2013–2019, Texas Instruments Incorporated Sensing Solutions EVM GUI www.ti.com 1.2.1 System Requirements The host machine is required for device configuration and data streaming. The following steps are necessary to prepare the EVM for the GUI: • The GUI and EVM driver must be installed on a host computer • - The EVM must be connected to a full speed USB port (USB 1.0 or above) The Sensing Solutions EVM GUI supports the following operating systems (both 32-bit and 64-bit): • Windows XP • Windows 7 • Windows 8 and 8.1 • Windows 10 1.2.2 Installation Instructions The Sensing Solutions GUI and EVM driver installer is packaged in a zip file. Follow these steps to install the software: 1. Download the software ZIP file from the EVM tool page 2. Extract the downloaded ZIP file 3. Run the included executable 4. If prompted by the User Account Control about making changes to the computer, click "Yes" Figure 1-3. User Account Control Prompt 5. After the setup wizard starts, click "Next" SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module Copyright © 2013–2019, Texas Instruments Incorporated 3 Sensing Solutions EVM GUI www.ti.com Figure 1-4. Software Installer Wizard 6. Read the license agreement, select "I accept the agreement", and click "Next" Figure 1-5. Software Installer License Agreement 4 LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback Copyright © 2013–2019, Texas Instruments Incorporated Sensing Solutions EVM GUI www.ti.com 7. Use the preselected installation directory and click "Next" Figure 1-6. Software Installation Directory 8. Start the installation by clicking "Next" SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module Copyright © 2013–2019, Texas Instruments Incorporated 5 Sensing Solutions EVM GUI www.ti.com Figure 1-7. Software Installer Ready 9. Wait for the installation to complete Figure 1-8. Software Installer In Progress 6 LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback Copyright © 2013–2019, Texas Instruments Incorporated Sensing Solutions EVM GUI www.ti.com 10. When the "Device Driver Installation Wizard" appears, click "Next" to install the EVM driver Figure 1-9. Device Driver Installer Wizard 11. Wait for the driver installation to complete SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module Copyright © 2013–2019, Texas Instruments Incorporated 7 Sensing Solutions EVM GUI www.ti.com Figure 1-10. Device Driver Installer In Progress 12. After the driver installation is completed, click "Finish" 8 LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback Copyright © 2013–2019, Texas Instruments Incorporated Sensing Solutions EVM GUI www.ti.com Figure 1-11. Device Driver Installer Completed 13. Click "Finish" to complete the installation Figure 1-12. Software Installer Completed SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module Copyright © 2013–2019, Texas Instruments Incorporated 9 Sensing Solutions EVM GUI www.ti.com 1.2.3 Starting the GUI Follow these steps to start the GUI: 1. Select the Windows start menu 2. Select "All programs" 3. Select "Texas Instruments" 4. Select "Sensing Solutions EVM GUI" 5. Click "Sensing Solutions EVM GUI" 6. Splash screen will appear for at least two seconds Figure 1-13. Splash Screen 7. After the splash screen is displayed the main window will open 10 LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback Copyright © 2013–2019, Texas Instruments Incorporated Sensing Solutions EVM GUI www.ti.com Figure 1-14. Introduction Page 1.2.4 Navigating the GUI To navigate to different pages of the GUI follow these steps: 1. Click “Menu” in the upper left corner SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module Copyright © 2013–2019, Texas Instruments Incorporated 11 Sensing Solutions EVM GUI www.ti.com Figure 1-15. Mouse Hovered Over Menu Button 2. Select the desired page from the menu shown on the left Figure 1-16. Menu Display After Clicking Button 12 LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback Copyright © 2013–2019, Texas Instruments Incorporated Sensing Solutions EVM GUI www.ti.com 1.2.5 Connecting the EVM Follow these steps to connect the EVM to the GUI: 1. Attach the EVM to the computer via USB 2. The GUI always shows the connection status on the bottom left corner of the GUI Figure 1-17. EVM Connected to GUI 1.2.6 Configuring the EVM Using the Register Page The register page allows users to control the device directly with the register values. The user may also use this page to read the currect register values on the device. 1.2.6.1 Automatically Update GUI Register Values Using Auto-Read Autoread will periodically request the register values on the device. Click the dropdown box next to “Auto Read” to select the update interval. SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module Copyright © 2013–2019, Texas Instruments Incorporated 13 Sensing Solutions EVM GUI www.ti.com Figure 1-18. Selecting Auto-Read Interval on Register Page 1.2.6.2 Manually Update Device Register Values There are two methods to change register values: update the entire register value or change a single bit within the register. The recommended update mode is always “Immediate” and not “Deferred”. To update register values, follow these steps. 1. Double-click the current value of the register that needs to be changed. The text will turn into an editable text box 14 LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback Copyright © 2013–2019, Texas Instruments Incorporated Sensing Solutions EVM GUI www.ti.com Figure 1-19. Selecting a Register's Current Value for Editting on Register Page 2. Type the new hexadecimal value into the box and click enter. The text box changes to normal text and the GUI will send a command to the EVM to update the device register To change individual bit values rather that entire register values follow these steps. 1. Hover the mouse over the desired bit to change SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module Copyright © 2013–2019, Texas Instruments Incorporated 15 Sensing Solutions EVM GUI www.ti.com Figure 1-20. Hovering Mouse Over Register Bit Value on Register Page 2. Double-click the bit to toggle its value and the register’s current value will update automatically 1.2.6.3 Reading Register Values without Auto-Read To read register values follow these steps. 1. Select the register to update by clicking any column of the register row in the table 16 LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback Copyright © 2013–2019, Texas Instruments Incorporated Sensing Solutions EVM GUI www.ti.com Figure 1-21. Selecting a Register on Register Page 2. Click the “Read Register” button to update the selected register’s current value and bit values in the table SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module Copyright © 2013–2019, Texas Instruments Incorporated 17 Sensing Solutions EVM GUI www.ti.com Figure 1-22. Reading the Current Device Register Value on Register Page 1.2.6.4 Saving Device Configurations To save the current register settings of the device follow these steps. 1. Click the button immediately right to the “Auto-Read” selection dropdown 18 LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback Copyright © 2013–2019, Texas Instruments Incorporated Sensing Solutions EVM GUI www.ti.com Figure 1-23. Save Register Values to File on Register Page 2. Choose a name for the JSON file and the directory to save it within. Then click “Save” 1.2.6.5 Loading Previously Saved Configurations To load previously saved register settings from a JSON file follow these steps. 1. Click the button furthest right from the “Auto-Read” selection dropdown SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module Copyright © 2013–2019, Texas Instruments Incorporated 19 Sensing Solutions EVM GUI www.ti.com Figure 1-24. Loading Previously Saved Register Values from File on Register Page 2. Select the JSON file with the desired settings and click “Open” 1.2.7 Configuring the EVM Using the Configuration Page The Sensing Solutions GUI is capable on configuring the device more intuitively than the direct register values. The "Configuration" page provides an easy-to-use tool for updating the device configuration and provides additional information about how the device will perform. 20 LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback Copyright © 2013–2019, Texas Instruments Incorporated Sensing Solutions EVM GUI www.ti.com Figure 1-25. Sensor Properties and Input Adjustments on Configuration Page 1.2.8 Streaming Measurement Data The Sensing Solutions GUI and EVM provide a tool to capture, display, and log measurement data. The section describes how to use the data measurement tools from the "Data Streaming" page accessible from the GUI menu. 1.2.8.1 Choosing the Graph and Visible Channels Select the drop down menu on top of the y-axis to choose the graph to display. SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module Copyright © 2013–2019, Texas Instruments Incorporated 21 Sensing Solutions EVM GUI www.ti.com Figure 1-26. Select the Data Graph on Data Streaming Page To select which channel measurements are displayed in the graph, check or uncheck the available channels shown next to the graph units. Selecting or not selecting the channels only affects the graph and not the data logged to a file. If a channel is not enabled in the Configuration page it will not appear on the Data Streaming page. 1.2.8.2 Logging Data to a File Follow these steps to log measurement data to a file. 1. Click the button in the upper right under next to "Click to Select Log File" 22 LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback Copyright © 2013–2019, Texas Instruments Incorporated Sensing Solutions EVM GUI www.ti.com Figure 1-27. Select Log File Button on Data Streaming Page 2. Select a file name and directory to save the data to and then click the “Save” button 3. Whenever data streaming is running the data for all channels will be logged to this file. The selected file is shown next to the button. 1.2.8.3 Starting and Stopping Data Streaming To start data streaming click the “Start” button. SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module Copyright © 2013–2019, Texas Instruments Incorporated 23 Sensing Solutions EVM GUI www.ti.com Figure 1-28. Start Button on Data Streaming Page To stop data streaming click the “Stop” button. 24 LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback Copyright © 2013–2019, Texas Instruments Incorporated Sensing Solutions EVM GUI www.ti.com Figure 1-29. Stop Button on Data Streaming Page 1.2.8.4 Data Statistics Click the “Show Statistics” button to view the measurement statistics. SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module Copyright © 2013–2019, Texas Instruments Incorporated 25 Sensing Solutions EVM GUI www.ti.com Figure 1-30. Show Statistics Button on Data Streaming Page Click the “Hide Statistics” button to hide the measurement statistics. 26 LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback Copyright © 2013–2019, Texas Instruments Incorporated Sensing Solutions EVM GUI www.ti.com Figure 1-31. Hide Statistics Button on Data Streaming Page 1.2.8.5 Configuring the Graph To configure the graph, click the "Show Graph Configuration" button. SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module Copyright © 2013–2019, Texas Instruments Incorporated 27 Sensing Solutions EVM GUI www.ti.com Figure 1-32. Show Graph Configuration Button on Data Streaming Page 28 LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback Copyright © 2013–2019, Texas Instruments Incorporated Sensing Solutions EVM GUI www.ti.com Figure 1-33. Graph Configuration Button on Data Streaming Page The configuration window displays the actual frame rate of the graph, the rate at which data is added to the graph, the vertical scaling, and the sample buffer size. The display rate is the rate at which the graph updates on the computer display and is not configurable. It is automatically optimized by the GUI. The "New Data Sample Rate" allows the user to choose when new data is added to the graph. Selecting "EVM Output Rate" will display data on the graph as fast as is available from the EVM. This should not be confused with the actual sampling rate of the device on the EVM which could be different. The "Add sample to graph every ... ms" will add a new sample to the graph at the specified rate. The "Verical Scaling" allows the user to either manually set the minimum and maximum values of the yaxis on the graph or use auto-scaling. The "Autoscale & Lock" button scales the graph based on the data of the current display and then locks those vertical scaling settings. The "Sample Counts" allows the user to specify the number of samples displayed on the graph and the total number of samples stored in the buffer. Please note the buffer size does not affect data logging to a file. To hide the configuration window, click the "Hide Graph Configuration" button. SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module Copyright © 2013–2019, Texas Instruments Incorporated 29 Sensing Solutions EVM GUI www.ti.com Figure 1-34. Hide Graph Configuration Button on Data Streaming Page 1.2.8.6 Navigating the Data Streaming Buffer The Sensing Solutions EVM GUI stores a buffer of data samples and then displays a subset of those samples in the graph. The data buffer can be navigated using the horizontal slider below the graph. To adjust the samples displayed in the graph, click either the slider on the left or right side of the green bar and drag it closer or further from the other slider. The number of samples displayed is shown between the left and right sliders in the green bar. 30 LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback Copyright © 2013–2019, Texas Instruments Incorporated Sensing Solutions EVM GUI www.ti.com Figure 1-35. Changing Number of Samples Displayed in Data Graph By clicking on the green bar sliders and dragging the mouse left or right, the displayed region of buffered LDC data can be adjusted. SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module Copyright © 2013–2019, Texas Instruments Incorporated 31 Sensing Solutions EVM GUI www.ti.com Figure 1-36. Displaying Previous Data Samples on the Data Streaming Page 1.2.9 Updating the EVM Firmware To upload new firmware to the EVM, navigate to the "Firmware" page from the GUI menu and follow these steps. The images below show uploading the FDC2214 EVM firmware, but the steps are identical for any LDC, FDC, or HDC EVM when using their respective firmware files. 1. Click the button to select a TI-TXT firmware file 32 LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback Copyright © 2013–2019, Texas Instruments Incorporated Sensing Solutions EVM GUI www.ti.com Figure 1-37. Select TI-TXT File Button on Firmware Upload Page 2. Select the firmware file and click “Open” SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module Copyright © 2013–2019, Texas Instruments Incorporated 33 Sensing Solutions EVM GUI www.ti.com Figure 1-38. Selecting TI-TXT Firmware File for Upload to EVM 3. Click the “Upload Firmware” button 34 LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback Copyright © 2013–2019, Texas Instruments Incorporated Sensing Solutions EVM GUI www.ti.com Figure 1-39. Upload Firmware Button on Firmware Upload Page 4. Wait for the firmware to upload. Do NOT disconnect the EVM from the PC at this time! Also note that the GUI will disconnect from the EVM. The upload process should not take more than one minute. If the upload fails or lasts longer than one minute, unplug the EVM and restart the GUI. Figure 1-40. Firmware Upload in Progress SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module Copyright © 2013–2019, Texas Instruments Incorporated 35 Sensing Solutions EVM GUI www.ti.com Figure 1-41. Firmware Upload Success 36 LDC1000/LDC1001/LDC1041/LDC1051 Evaluation Module SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback Copyright © 2013–2019, Texas Instruments Incorporated Chapter 2 SNAU150B – September 2013 – Revised November 2019 Schematics 2.1 LDC10xx EVM Schematics Figure 2-1. EVM Layout Figure 2-2. Top Layer Figure 2-3. Bottom Layer SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback Copyright © 2013–2019, Texas Instruments Incorporated Schematics 37 Chapter 3 SNAU150B – September 2013 – Revised November 2019 Bill of Materials Designator Quantity Description Manufacturer Part Number C1 1 CAP, CERM, 2.2uF, 10V, +/-10%, X5R, 0603 Kemet C0603C225K8PACTU C2 1 CAP CER 10UF 10V 10% X5R 0603 TDK Corporation C1608X5R1A106K080AC C3, C5, C11, C12, C16, C19 6 CAP CER 0.1UF 16V 5% X7R 0402 Murata Electronics North America GRM155R71C104JA88D C4 1 CAP, CERM, 0.01uF, 25V, +/-5%, C0G/NP0, 0603 TDK C1608C0G1E103J C6 1 CAP CER 220PF 50V 1% NP0 0402 TDK Corporation C1005C0G1H221F050BA C7 1 CAP, CERM, 2200pF, 50V, +/-10%, X7R, 0603 Kemet C0603X222K5RACTU C8, C9 2 CAP CER 18PF 100V 5% NP0 0603 MuRata GRM1885C2A180JA01D C10 1 CAP, CERM, 220pF, 50V, +/-1%, C0G/NP0, 0603 AVX 06035A221FAT2A C13, C15 2 CAP, CERM, 1uF, 10V, +/-10%, X5R, 0402 MuRata GRM155R61A105KE15D C14 1 CAP CER 0.056UF 16V 5% X7R 0402 Kemet C0402C563J4RACTU C17 1 CAP, CERM, 0.47uF, 10V, +/-10%, X7R, 0603 Kemet C0603C474K8RACTU C18 1 CAP CER 20PF 50V 5% NP0 0805 Kemet C0805C200J5GACTU C_Tank 1 CAP CER 100PF 50V 1% NP0 0603 AVX Corporation 06035A101FAT2A D1 1 LED SMARTLED GREEN 570NM 0603 OSRAM Opto Semiconductors Inc LG L29K-G2J1-24-Z D2 1 LED 660NM SUPER RED DIFF 0603SMD Lumex Opto/Components Inc SML-LX0603SRW-TR D21 1 Diode, Zener, 5.6V, 500mW, SOD-123 Diodes Inc. MMSZ5232B-7-F FID1, FID2, FID3 3 Fiducial mark. There is nothing to buy or mount. N/A N/A J1 1 Connector, USB Type A, 4POS R/A, SMD Molex 48037-2200 L1 1 INDUCTOR POWER 10UH .45A SMD TDK Corporation VLS201610ET-100M R1, R2 2 RES, 33 ohm, 5%, 0.063W, 0402 Vishay-Dale CRCW040233R0JNED R5 1 RES, 33k ohm, 5%, 0.063W, 0402 Vishay-Dale CRCW040233K0JNED R6, R7 2 RES 1K OHM 1/10W 5% 0402 SMD Panasonic Electronic Components ERJ-2GEJ102X R20 1 RES,1M ohm, 5%, 0.063W, 0402 Yageo RC0402JR-071ML 38 Bill of Materials SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback Copyright © 2013–2019, Texas Instruments Incorporated www.ti.com Designator Quantity Description Manufacturer Part Number R40 1 RES 1.5K OHM 1/16W 5% 0402 SMD Vishay Dale CRCW04021K50JNED U1 1 Micropower 150 mA LowNoise Ultra Low-Dropout Regulator, 5-pin SOT-23, Pb-Free Texas Instruments LP2985AIM5-3.3/NOPB U2 1 4-CHANNEL ESDPROTECTION ARRAY FOR HIGH-SPEED DATA INTERFACES, DRY006A Texas Instruments TPD4E004DRY U3 1 MCU Texas Instruments MSP430F5528IRGCR U4 1 Inductance to Digital Converter Texas instruments LDC1000 Y1 1 CRYSTAL 24.000MHZ 18PF SMD Abracon Corporation ABMM-24.000MHZ-B2-T J2 0 TERM BLOCK 2POS 3.81MM PCB HORIZ FCI 20020327-D021B01LF J4 0 Header, TH, 100mil, 2x1, Gold plated, 230 mil above insulator Samtec, Inc. TSW-102-07-G-S SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback Copyright © 2013–2019, Texas Instruments Incorporated Bill of Materials 39 Revision History www.ti.com Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from A Revision (March 2014) to B Revision .................................................................................................. Page • • • Added new part number LDC1001...................................................................................................... 2 Updated GUI instructions to v1.8.8 ..................................................................................................... 3 Updated Choosing the Graph and Visible Channels section ...................................................................... 21 Changes from Original (September 2013) to A Revision ............................................................................................... Page • • 40 Added new part numbers LDC1041/LDC1051 ........................................................................................ 2 Changed Changed Schematic to Vector graphic for better display. .............................................................. 37 Revision History SNAU150B – September 2013 – Revised November 2019 Submit Documentation Feedback Copyright © 2013–2019, Texas Instruments Incorporated IMPORTANT NOTICE AND DISCLAIMER TI PROVIDES TECHNICAL AND RELIABILITY DATA (INCLUDING DATASHEETS), DESIGN RESOURCES (INCLUDING REFERENCE DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS” AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS. These resources are intended for skilled developers designing with TI products. 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