TEXAS INSTRUMENTS TLV9051DPW EVM (01) PDF MANUAL


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PDF Content Summary: User's Guide SLOU525–June 2020 TLV9051DPW EVM User's Guide This user's guide contains support documentation for the TLV9051DPW evaluation module (EVM). Included in this document is a description of how to set up and configure the EVM, printed circuit board (PCB) layout, schematic, and bill of materials (BOM) for the TLV9051DPWEVM. Contents 1 Introduction................................................................................................................... 2 2 TLV9051DPWEVM Kit Contents........................................................................................... 2 3 Circuit Configurations ....................................................................................................... 2 4 Schematic and PCB Layout................................................................................................ 3 5 Connections .................................................................................................................. 8 6 Bill of Materials and References........................................................................................... 8 List of Figures 1 TLV9051DPWEVM Schematic............................................................................................. 3 2 Silkscreen Schematic ....................................................................................................... 3 3 Difference Amplifier Schematic............................................................................................ 4 4 Difference Amplifier Configured on TLV9051DPWEVM................................................................ 4 5 Non-inverting Amplifier Schematic ........................................................................................ 5 6 Non-inverting Amplifier Configured on TLV9051DPWEVM............................................................ 5 7 Inverting Amplifier Schematic.............................................................................................. 6 8 Inverting Amplifier Configured on TLV9051DPWEVM.................................................................. 6 9 Top Layer PCB Layout...................................................................................................... 7 10 Bottom Layer PCB Layout.................................................................................................. 7 List of Tables 1 TLV9051DPWEVM Kit Contents........................................................................................... 2 2 TLV9051DPWEVM BOM ................................................................................................... 8 1 SLOU525–June 2020 Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated TLV9051DPW EVM User's Guide Introduction ti.com Trademarks All trademarks are the property of their respective owners. 1 Introduction The TLV9051 is a high-performance, low cost, low power operational amplifier. For a full list of electrical characteristics of the TLV9051, please refer to the TLV9051 product data sheet (SBOS942). This EVM is developed to give users the ability to easily evaluate their design concepts using the TLV9051. The EVM can be configured into three circuit configurations: difference amplifier, non-inverting amplifier and inverting amplifier by populating different components on board. 2 TLV9051DPWEVM Kit Contents Table 1 details the contents included in the TLV9051DPWEVM kit. Table 1. TLV9051DPWEVM Kit Contents ITEM DESCRIPTION QUANTITY TLV9051DPWEVM PCB 1 Header strip 100-mil (2.54-mm) spacing, 32 position, through hole 2 3 Circuit Configurations By populating different components on the PCB, the TLV9051DPWEVM can be configured into three different circuits: • Difference amplifier • Non-inverting amplifier • Inverting amplifier 2 TLV9051DPW EVM User's Guide SLOU525–June 2020 Copyright © 2020, Texas Instruments Incorporated Submit Documentation Feedback ti.com Schematic and PCB Layout4 Schematic and PCB Layout This section provides the schematic and PCB layout of the TLV9051DPWEVM. Also included are the schematics for the three TLV9051DPWEVM circuit configuration options. 4.1 Schematic Figure 1 displays the circuit schematic of the TLV9051DPWEVM. Figure 1. TLV9051DPWEVM Schematic The schematic of the EVM is provided in silk screen located on the back of the PCB for easy reference. Figure 2 displays the schematic provided on the back of the PCB. Figure 2. Silkscreen Schematic SLOU525–June 2020 3 Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated TLV9051DPW EVM User's Guide -C1R1V+ C2+C3R4 C4IN- 1 1VOUT 2 3 4 5 2 3 4 5 R22 5 R3 4 1 3IN+ 1 1VREF V- 2 3 4 5 2 3 4 5 Schematic and PCB Layout ti.com 4.2 Difference Amplifier Figure 3 displays the schematic for the difference amplifier circuit configuration. Figure 3. Difference Amplifier Schematic Equation 1 displays the transfer function of the difference amplifier circuit configuration. (1) If R1 = R4 and R2 = R3, Equation 1 can simplify to Equation 2. (2) Capacitors C1 and C4 provide the option to filter the output of the amplifier. Equation 3 calculates the cutoff frequency, fc, of the filter. (3) Where • R1 = R4, R2 = R3, and C1 = C4 Figure 4 displays the TLV9051DPWEVM populated with the required components to be configured as a difference amplifier. Figure 4. Difference Amplifier Configured on TLV9051DPWEVM

4 TLV9051DPW EVM User's Guide SLOU525–June 2020 Copyright © 2020, Texas Instruments Incorporated Submit Documentation Feedback IN- R2R3 IN+ -C1R1V+ C2+C3V- -C1R1V+ C2+C3V- VOUT VOUT

VOUT IN-

IN+ VREF R4 C4 VREF

ti.com Schematic and PCB Layout4.3 Non-inverting Amplifier Figure 5 displays the schematic for the non-inverting amplifier circuit configuration. To configure the EVM in a non-inverting configuration short R3 using a 0-Ω resistor or solder bridge, leave R4 and C4 unpopulated, and ground the input connection IN–. The input signal is applied directly to the high impedance non-inverting input terminal using the IN+ connection on the EVM. Figure 5. Non-inverting Amplifier Schematic Equation 4 displays the DC transfer function of the non-inverting amplifier circuit configuration shown in Figure 5. (4) Capacitor C1 provides using Equation 5. the option to filter the output. The cutoff frequency, fc, of the filter can be calculated (5) Figure 6 displays the TLV9051DPWEVM populated with the required components to be configured as a non-inverting amplifier. Figure 6. Non-inverting Amplifier Configured on TLV9051DPWEVM SLOU525–June 2020 5 Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated TLV9051DPW EVM User's Guide GND VOUT IN+ R2 IN+ -C1R1V+ C2+C3 VOUT V-

Schematic and PCB Layout ti.com 4.4 Inverting Amplifier Figure 7 shows the schematic for the inverting amplifier circuit configuration. To configure the EVM in an inverting configuration short R3 using a 0-Ω resistor or solder bridge, leave R4 and C4 unpopulated, and apply the desired common mode voltage to the input connection, IN+. The input signal is applied using the input connection IN–. Figure 7. Inverting Amplifier Schematic Equation 6 displays the DC transfer function of the inverting amplifier circuit configuration. (6) Capacitor C1 provides using Equation 7. the option to filter the output. The cutoff frequency, fc, of the filter can be calculated (7) Figure 8 shows the TLV9051DPWEVM populated with the required components to be configured as an inverting amplifier.Figure 8. Inverting Amplifier Configured on TLV9051DPWEVM 6 TLV9051DPW EVM User's Guide SLOU525–June 2020 Copyright © 2020, Texas Instruments Incorporated Submit Documentation Feedback R2 IN- VOUT Vcm V- VCM VOUT IN- -+V+ C2C1R1C3

ti.com Schematic and PCB Layout4.5 PCB Layout The TLV9051DPWEVM is a two layer board. The PCB layout of the top layer is displayed in Figure 9. Figure 9. Top Layer PCB Layout The PCB layout of the bottom layer is displayed in Figure 10. Figure 10. Bottom Layer PCB Layout SLOU525–June 2020 7 Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated TLV9051DPW EVM User's Guide

Connections ti.com 5 Connections This section provides a description for each connection available on the EVM. 5.1 Power The power supply connections for the TLV9051DPWEVM can only be applied using the header strips located at the top and bottom of the PCB. The positive power supply connection is labeled V+, the negative power supply connection is labeled V–, and the ground connection is labeled GND. For the minimum and maximum supply voltages of the TLV9051DPWEVM, please refer to the TLV9051 product data sheet (SBOS942). 5.2 Input Connections Signals for the input can be applied to the TLV9051DPWEVM through the use of SMA connectors or the header pins. The input connections are labeled as IN+ and IN–. 5.3 Output Connections Output connections are provided through the use of SMA connectors or the header pin labeled as VOUT. 5.4 Reference Voltage Connections Signals or DC voltages for the reference voltage is applied to the TLV9051DPWEVM through the use of the SMA connector or header pin labeled VREF. 6 Bill of Materials and References 6.1 Bill of Materials (BOM) Table 2. TLV9051DPWEVM BOM DESIGNATOR QUANTITY DESCRIPTION PART NUMBER PCB 1 Printed-Circuit-Board TLV9051DPWEVM Header Strips 2 Header, 100 mil, 4x1, Gold, TH TS-104-G-AA 6.2 References (1) DIYAMP-EVM: ti.com/tool/DIYAMP-EVM (2) DUAL-DIYAMP-EVM: ti.com/tool/DUAL-DIYAMP-EVM (3) TI Precision Labs Training: training.ti.com/ti-precision-labs-overview

8 TLV9051DPW EVM User's Guide SLOU525–June 2020 Copyright © 2020, Texas Instruments Incorporated Submit Documentation Feedback

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