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THS4271EVM−UG
Unity Gain
DEVICE
EVM TITLE
THS4271
THS4271EVM-UG
THS4271
THS4271EVM
THS4275
THS4275EVM
October 2002
USER'S GUIDE
THS4271 Unity Gain EVM
THS4271/75EVM
THS4271/75EVM
User's Guide
DESCRIPTION
Noninverting unity gain configuration only
Configurable for gains ≥ +2/-1
Configurable for gains ≥ +2/-1
High Performance Linear Products
SHUTDOWN
No
No
Yes
SLOU147
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Table of Contents
Related Manuals for Texas Instruments THS4271EVM-UG
Summary of Contents for Texas Instruments THS4271EVM-UG
- Page 1 THS4271EVM−UG Unity Gain User’s Guide DEVICE EVM TITLE USER’S GUIDE DESCRIPTION SHUTDOWN THS4271 THS4271EVM-UG THS4271 Unity Gain EVM Noninverting unity gain configuration only Configurable for gains ≥ +2/-1 THS4271 THS4271EVM THS4271/75EVM Configurable for gains ≥ +2/-1 THS4275 THS4275EVM THS4271/75EVM October 2002...
- Page 2 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 discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.
- Page 3 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 EVALUATION PURPOSES ONLY and is not considered by TI to be fit for commercial use. As such, the goods being provided may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety measures typically found in the end product incorporating the goods.
- Page 4 EVM schematic located in the EVM User’s Guide. When placing measurement probes near these devices during operation, please be aware that these devices may be very warm to the touch. Mailing Address: Texas Instruments Post Office Box 655303 Dallas, Texas 75265 Copyright 2002, Texas Instruments Incorporated...
- Page 5 Information About Cautions and Warnings Preface Read This First Information About Cautions and Warnings This book may contain cautions and warnings. This is an example of a caution statement. A caution statement describes a situation that could potentially damage your software or equipment. This is an example of a warning statement.
- Page 6 THS4271/THS4275 data sheet (SLOS397) Application report (SLMA002), PowerPAD Thermally Enhanced Package, http://www-s.ti.com/sc/psheets/slma004/slma002.pdf Application report (SLMA004), PowerPAD Made Easy, http://www-s.ti.com/sc/psheets/slma004/slma004.pdf Application report (SSYA008), Electrostatic Discharge (ESD), http://www-s.ti.com/sc/psheets/ssya008/ssya008.pdf Application report (SLOA102), High Speed PCB Layout Tips, http://www-s.ti.com/sc/psheets/sloa102/sloa102.pdf Trademarks PowerPAD is a trademark of Texas Instruments.
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Page 7: Table Of Contents
Figures Schematic of the THS4271EVM-UG Unity Gain ........ -
Page 8: Introduction And Description
Chapter 1 Introduction and Description This EVM provides a platform for testing the THS4271 in 8-pin LLP (DRB) package in a noninverting, unity gain mode. It contains the high-speed op amp, a number of passive components, and various features and footprints that enable the user to experiment, test, and verify various operational amplifier circuit implementations. -
Page 9: Evaluation Schematic
Power supply ripple rejection capacitors (C1 and C2). Decoupling capacitors (C3, C4, C5, C6). Power PADt heatsinking capability. A good example of high-speed amplifier PCB design and layout. Figure 1-1. Schematic of the THS4271EVM-UG Unity Gain 453 W Vout Vin+ THS4271 49.9 W... -
Page 10: Using The Evm
Chapter 2 Using the EVM Figure 2-1 shows how to connect power supplies, signal source and monitor- ing instrument. It is recommended that the user connect the EVM as shown to avoid damage to the EVM or the op amp installed on the board. Figure 2-1. -
Page 11: Evm Applications
49.9 W 49.9 W Note: This schematic reflects the default THS4271EVM-UG unity gain configuration. Power supply decoupling not shown. The EVM output provides a 500-Ω load to the output of the EVM to provide optimum performance (per the data sheet). The load is implemented as a 453-Ω... -
Page 12: Default Configuration
Default Configuration Changing R6 to 49.9 Ω allows the EVM to connect to a 50-Ω load. This amplifier is designed to attain optimum performance driving 500-Ω loads, but 100-Ω loads can be driven. See the data sheet for device characteristics. Figure 3-2. -
Page 13: Evm Hardware Description
Chapter 4 EVM Hardware Description This chapter describes the EVM hardware. It includes the EVM parts list, and printed-circuit board layout. Table 4-1. THS4271EVM-UG Unity Gain Bill of Materials Item Description Reference Manufacturer’s Distributor’s Size Designator Part Number Part Number Bead, ferrite, 3A, 80 Ω... -
Page 14: Board Layout Views
Figure 4-1. Board Layout Views Layer 2 - Ground Layer 3 - Power Bottom... - Page 15 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments THS4271EVM-UG...
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