Page 2 - IMPORTANT NOTICE
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications,enhancements, improvements, and other changes to its products and services at any time and to discontinueany product or service without notice. Customers should obtain the l...
Page 3 - EVM IMPORTANT NOTICE
EVM IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EVALUATIONPURPOSES ONLY and is not considered by TI to be fit for commercial use. As such, the goods be...
Page 4 - EVM WARNINGS AND RESTRICTIONS
EVM WARNINGS AND RESTRICTIONS It is important to operate this EVM within the input voltage range of 5 V and the output voltage range of +5 V and –5 V. Exceeding the specified input range may cause unexpected operation and/or irreversibledamage to the EVM. If there are questions concerning the input ...
Page 5 - Preface; About This Manual; This is an example of a caution statement.
Information About Cautions and Warnings iii Preface About This Manual This manual provides information about using the THS4503 fully differentialamplifier on evaluation module PCB marked with Edge # 6439396.Additionally, this document provides a good example of PCB design forhigh-speed applications....
Page 6 - This is an example of a warning statement.; FCC Warning; Application report (literature number
Related Documentation From Texas Instruments iv This is an example of a warning statement. A warning statement describes a situation that could potentiallycause harm to you. The information in a caution or a warning is provided for your protection.Please read each caution and warning carefully. FCC ...
Page 7 - Trademarks; PowerPAD is a trademark of Texas Instruments.
Trademarks v - Application report (literature number SLMA002), Power Pad ThermallyEnhanced Package, http://www−s.ti.com/sc/psheets/slma004/slma002.pdf - Application report (literature number SLMA004), Power Pad Made Easy,http://www−s.ti.com/sc/psheets/slma004/slma004.pdf - Application report (litera...
Page 9 - Introduction and Description; High-Speed Amplifier PCB Layout Tips
Contents vii 1 Introduction and Description 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 Description 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 10 - Power Supply Connection for
Contents viii 1−1. Schematic of the Populated Circuit on the EVM (Default Configuration) 1-3 . . . . . . . . . . . . . . 2−1. Power Supply Connection for ± 5 Vdc 2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2−2. Signal Connections 2-3 . . . . . . . . . ...
Page 11 - Topic; Description; Chapter 1
1-1 Introduction and Description The Texas Instruments THS4503 evaluation module (EVM) helps designersevaluate the performance of the THS4503 fully differential operationalamplifier (FDA). Also, this EVM is a good example of high-speed PCB design. This document details the THS4503EVM. It includes a ...
Page 12 - THS4503EVM Operating Conditions
Description 1-2 1.1 Description The THS4503EVM provides a platform for developing high-speed FDAapplication circuits. It contains the THS4503 high-speed FDA, a number ofpassive components, and various features and footprints that enable the userto experiment, test, and verify various operational amp...
Page 13 - EVM Default Configuration; The default configuration assumes a 50-
EVM Default Configuration 1-3 Introduction and Description 1.4 EVM Default Configuration As delivered, the EVM has a fully functional example circuit, just add powersupplies, a signal source, and monitoring instrument. See Figure 1−1 for thedefault schematic diagram. The user can change the gain by ...
Page 15 - Required Equipment; Chapter 2
2-1 Using the THS4503EVM !" This section describes how to connect the THS4503EVM to test equipment.It is recommended that the user connect the EVM as described in this sectionto avoid damage to the EVM or the THS4503 installed on the board. Topic Page 2.1 Required Equipment 2-2 . . . . . . . . ....
Page 16 - Power Supply Connection (Refer to Figure 2−1); Figure 2−1. Power Supply Connection for
Required Equipment 2-2 2.1 Required Equipment - One dual-output dc power supply ( ± 5 V, 1 A output minimum) - Two dc current meters with resolution to 1 mA and capable of themaximum current the dc power supply can supply. - 50- Ω source impedance function generator (1 MHz, 10 V PP sine wave) - Osci...
Page 17 - Function Generator Setup; The oscilloscope inputs 1 and 2 must be set to 50-; Signal Connection V; Figure 2−2. Signal Connections
Function Generator Setup 2-3 Using the THS4503EVM 2.3 Function Generator Setup Note: The oscilloscope inputs 1 and 2 must be set to 50- Ω input impedance for proper results. 1) Connect the function generator to oscilloscope channel 1. 2) Set vertical channels 1 and 2 of the oscilloscope to 0.2 V/div...
Page 19 - Single-Ended to Fully Differential Application; Chapter 3
3-1 THS4503EVM Applications !" # Example applications are presented in this chapter. These applications dem-onstrate the most popular circuits, but many other circuits can be constructed.The user is encouraged to experiment with different circuits, exploring new andcreative design techniques. Af...
Page 21 - Figure 3−2. Single Supply Operation
Single-Ended to Fully Differential Application 3-3 THS4503EVM Applications Figure 3−2. Single Supply Operation TP1 Vocm R1 56.2 W J3Vout − R5 392 W J2 Vout+ J1 Vin − C2 R3 402 W R4 392 W +VS − Vocm + U1 THS4503 1 8 2 3 6 5 4 C1 R17 0 R7 0 R6 0 C131 m F R2 374 W Note: For this and some of the followi...
Page 22 - This application circuit has interaction between R
Single-Ended to Fully Differential Application 3-4 Figure 3−3. Output of an AC-Coupled, Single-Supply Application 3 2 1 0 −1 0 500 n 1 Ω t − Time − s V olts The designer should realize that the coupling capacitors, acting with thegain resistors, produce a high pass characteristic into the circuit. T...
Page 23 - F capacitors with microwave; Chapter 4
4-1 High-Speed Amplifier PCB Layout Tips $ #%& '( )* The THS4503EVM layout has been designed for use with high-speed signalsand can be used as an example when designing PCBs incorporating theTHS4503. Careful attention has been given to component selection,grounding, power supply bypassing, and s...
Page 25 - Chapter 5
5-1 EVM Hardware Description !" + This chapter describes the EVM hardware. It includes the EVM parts list, andprinted circuit board layout. Table 5−1. THS4503EVM Bill of Materials Item Description SMDSize ReferenceDesignator PCB Qty. Manufacturer’sPart Number Distributor’sPart Number 1 CAP, 6.8 ...
Page 28 - Figure 5−3. Schematic Diagram
5-4 Figure 5−3. Schematic Diagram C2 0 VCC+ C4 * R17 0 R8 340 Ω R5 392 Ω R13* C10 * R3 402 Ω − Vocm + U1 THS4503 1 8 2 3 6 5 4 J8 +VS T1 ADP4 −1WT 6 1 5 4 3 R2 374 Ω TP1 Vocm +VS −VS J6 Vin+ R12 * J1 Vin− C12 0.1 µ F TP4 C5 * TP5 R11 * R16* R4 392 Ω J4 Vout −VS C3* R14 * R15 * C7 * + C8 6.8 µ F C1 0...
