OPA1S2385EVM

User's Guide SBOU127A – December 2012 – Revised October 2013 OPA1S238xEVM This user's guide describes the characteristics, operation, and use of the evaluation module (EVM) for the OPA1S2384 and OPA1S2385 referred to as the OPA1S238xEVM. This EVM is designed to evaluate the performance of the device in both single- and dual-supply configurations. This document also includes the schematic, printed circuit board (PCB) layout, and a bill of materials (BOM). Throughout this document the terms evaluation board, evaluation module, and EVM are synonymous with the OPA1S238xEVM. 1 2 3 4 Contents Introduction .................................................................................................................. OPA1S238xEVM Hardware ............................................................................................... Bill of Materials .............................................................................................................. Related Documentation from Texas Instruments ....................................................................... 1 OPA1S238xEVM (OPA1S2385 Shown) ................................................................................. 2 2 OPA1S238xEVM Schematic .............................................................................................. 3 3 Top Layer (Signal and Ground) ........................................................................................... 5 4 Layer 2 (Ground) ............................................................................................................ 6 5 Layer 3 (Power) ............................................................................................................. 7 6 Bottom Layer (Ground) ..................................................................................................... 8 2 3 9 9 List of Figures SBOU127A – December 2012 – Revised October 2013 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated OPA1S238xEVM 1 Introduction www.ti.com 1 Introduction 1.1 OPA1S2384 and OPA1S2385 The OPA1S2384 and OPA1S2385 combine high bandwidth, FET-input operational amplifiers with a fast SPST CMOS switch. They are well suited for applications that require the tracking and capturing of fast signals, such as wideband photodiode amplification. These devices are available in a DFN-10 package. 1.2 OPA1S238xEVM The OPA1S238xEVM is intended to provide basic functional evaluation of the OPA1S2385. It provides the following features: • • • • • Configured for split-supply or single-supply operation. Easy access to pertinent nodes with test points, SMA connectors, and banana plugs. Default noninverting gain of 1 configuration for basic sample-and-hold mode evaluation. Component footprints allow for multiple gain, feedback, and filtering configurations. Designed for connection to standard 50-Ω test equipment. A picture of the OPA1S238xEVM is shown in Figure 1. Figure 1. OPA1S238xEVM (OPA1S2385 Shown) 2 OPA1S238xEVM SBOU127A – December 2012 – Revised October 2013 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated OPA1S238xEVM Hardware www.ti.com 2 OPA1S238xEVM Hardware This section discusses the OPA1S238xEVM hardware schematics and PCB layout. 2.1 Schematic The schematic of the OPA1S238xEVM is shown in Figure 2. VSS TP10 R15 100  VDD J4 C8 0.1 µF R9 DNP R8 49.9  C3 0.1 µF C4 0.1 µF VDD VSS TP4 U1 R13 100  R5 49.9  OPA1S2385 5 9 10 11 VS- VS+ SC PWPD TP8 J2 4 +IN A + + OUT B R6 DNP J1 3 R12 100  -IN A - R10 49.9  1 IN S 2 +IN B C7 DNP -IN B 7 6 R2 0  TP3 R3 100  C1 DNP C12 470 pF R11 100  TP9 VDD TP2 TP14 TP6 C2 DNP R14 100  R7 DNP TP7 TP15 C5 4.7 µF J6 J7 TP1 FB1 J3 8 OUT A R1 0  J5 R4 49.9  C6 4.7 µF FB2 VSS TP5 Figure 2. OPA1S238xEVM Schematic 2.1.1 Amplifier A In the default configuration, amplifier A is set to a noninverting gain of 1. The noninverting input signal is applied through SMA connector J2. If the amplifier is placed in an inverting configuration, the input signal is applied through SMA connector J1. The output of amplifier A can be measured at test point TP1. Both input traces include 50-Ω termination resistors to properly interface with standard test equipment. The gain and feedback configuration of amplifier A can be changed by modifying components R1, C1, R5, R6, and R10. SBOU127A – December 2012 – Revised October 2013 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated OPA1S238xEVM 3 OPA1S238xEVM Hardware 2.1.2 www.ti.com Amplifier B In the default configuration, amplifier B is set to a noninverting gain of 1. The output of amplifier A is passed to the noninverting input of amplifier B through an internal switch. Alternatively, an external signal can be applied to either input of amplifier B using test points TP6 and TP7. The output of amplifier B can be measured at SMA connector J3 or test point TP8. The output trace includes a 50-Ω termination resistor to properly interface with standard test equipment. The gain, feedback, and filtering configuration of amplifier B can be changed by modifying components R2, C2, R4, R7, and C7. 2.1.3 Switch Control The control signal to the switch is applied through SMA connector J4. The input trace to the switch control pin includes a 50-Ω termination resistor to properly interface with standard test equipment. The logic table that describes the behavior of the switch is shown in Table 1. Table 1. Switch Control SWITCH BEHAVIOR SC VOLTAGE 2.1.4 OPA1S2384 OPA1S2385 High (V+) Closed Open Low (V–) Open Closed Power Power is applied through the banana connectors J5, J6, and J7. The minimum and maximum supply voltage ranges are given below in Table 2.The default configuration utilizes a split supply of ±2.5 V. If single-supply operation is desired, short J6 to J7 and connect them to GND, then apply the positive supply voltage to J5. Table 2. Supply Voltage Range 4 CONFIGURATION VSUPPLY (MAX) VSUPPLY (MIN) Split supply ±2.75 V ±1.35 V Single supply +5.5 V +2.7 V OPA1S238xEVM SBOU127A – December 2012 – Revised October 2013 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated OPA1S238xEVM Hardware www.ti.com 2.2 OPA1S238xEVM PCB Layout Figure 3, Figure 4, Figure 5, and Figure 6 depict the four layers of the OPA1S238xEVM PCB layout. NOTE: Board layouts are not to scale. These figures are intended to show how the board is laid out; they are not intended to be used for manufacturing OPA1S238xEVM PCBs. Figure 3. Top Layer (Signal and Ground) SBOU127A – December 2012 – Revised October 2013 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated OPA1S238xEVM 5 OPA1S238xEVM Hardware www.ti.com Figure 4. Layer 2 (Ground) 6 OPA1S238xEVM SBOU127A – December 2012 – Revised October 2013 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated OPA1S238xEVM Hardware www.ti.com Figure 5. Layer 3 (Power) SBOU127A – December 2012 – Revised October 2013 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated OPA1S238xEVM 7 OPA1S238xEVM Hardware www.ti.com Figure 6. Bottom Layer (Ground) 8 OPA1S238xEVM SBOU127A – December 2012 – Revised October 2013 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated Bill of Materials www.ti.com 3 Bill of Materials Table 3 gives the bill of materials (BOM) used for the OPA1S238xEVM. It also lists examples of optional components. Table 3. OPA1S238xEVM Bill of Materials Count 4 RefDes 1 U1 3 C3, C4, C8 2 C5, C6 1 C12 2 FB1, FB2 2 R1, R2 6 R3, R11-R15 4 Value N/A Description Part Number Manufacturer OPA1S2384 (DFN-10) or OPA1S2385 (DFN-10) OPA1S2384 or OPA1S2385 Texas Instruments 0.1 µF Capacitor, .010µF, 16V, X7R, 0603 C1608X7R1C104K TDK Corporation 4.7 µF Capacitor, 4.7µF, 16V, X7R, 1206 C3216X7R1C475K/1.60 TDK Corporation 470 pF Capacitor, 470pF, 50V, NP0, 0603 GRM1885C1H471JA01D Murata Electronics N/A Ferrite Bead, 3A, 80 ohms, 1206 HI1206N800R-10 Laird-Signal Integrity Products 0Ω Resistor, 0Ohm, 0603 ERJ-3GEY0R00V Panasonic Electronic Components 100 Ω Resistor, 100Ohm, 0603 ERJ-3EKF1000V Panasonic Electronic Components R4, R5, R8, R10 49.9 Ω Resistor, 49.9Ohm, 0603 ERJ-3EKF49R9V Panasonic Electronic Components 7 TP1, TP3, TP4, TP6, TP7, TP8, TP10 N/A Test Point, PC Mini, 0.040", White 5002 Keystone Electronics 1 TP5 N/A Test Point, PC Mini, 0.040", Yellow 5004 Keystone Electronics 1 TP9 N/A Test Point, PC Mini, 0.040", Red 5000 Keystone Electronics 3 TP2, TP14, TP15 N/A Test Point, PC Mini, 0.040", Black 5001 Keystone Electronics 4 J1-J4 N/A Connector Socket, SMA, Die-cast, PCB Mount 5-1814832-1 TE Connectivity 3 J5-J7 N/A Connector Jack, Banana, Panel Mount 108-0740-001 Emerson Network Power Connectivity 4 Screws N/A Screw, Phillips, 4-40x3/8 PMS 440 0038 PH B&F Fastener Supply 4 Standoffs N/A Standoff, Hex, 4-40THR, Aluminum, 0.500" 2203 Keystone Electronics Not Installed C1, C2, C7 N/A Capacitor, 0603 Not Installed R6, R7, R9 N/A Resistor, 0603 Not Installed TP11-TP13, TP16 N/A Test Point, PC Mini, 0.040" Related Documentation from Texas Instruments The following documents provide information regarding Texas Instruments' integrated circuits and support tools for the OPA1S238xEVM. This user's guide is available from the TI web site under literature number SBOU127. Any letter appended to the literature number corresponds to the document revision that is current at the time of the writing of this document. Newer revisions may be available from the TI web site, or call the Texas Instruments' Literature Response Center at (800) 477-8924 or the Product Information Center at (972) 644-5580. When ordering, identify the document by both title and literature number. Related Documentation Document OPA1S2384 product data sheet OPA1S2385 product data sheet Literature Number SBOS645 SBOU127A – December 2012 – Revised October 2013 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated OPA1S238xEVM 9 Revision History www.ti.com Revision History Changes from Original (December 2012) to A Revision ................................................................................................ Page • Added OPA1S2384 and OPA1S2384EVM devices to user's guide ............................................................... 1 NOTE: Page numbers for previous revisions may differ from page numbers in the current version. 10 Revision History SBOU127A – December 2012 – Revised October 2013 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated EVALUATION BOARD/KIT/MODULE (EVM) ADDITIONAL TERMS Texas Instruments (TI) provides the enclosed Evaluation Board/Kit/Module (EVM) under the following conditions: The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from all claims arising from the handling or use of the goods. Should this evaluation board/kit not meet the specifications indicated in the User’s Guide, the board/kit may be returned within 30 days from the date of delivery for a full refund. THE FOREGOING LIMITED WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES. Please read the User's Guide and, specifically, the Warnings and Restrictions notice in the User's Guide prior to handling the product. This notice contains important safety information about temperatures and voltages. For additional information on TI's environmental and/or safety programs, please visit www.ti.com/esh or contact TI. No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine, process, or combination in which such TI products or services might be or are used. TI currently deals with a variety of customers for products, and therefore our arrangement with the user is not exclusive. TI assumes no liability for applications assistance, customer product design, software performance, or infringement of patents or services described herein. REGULATORY COMPLIANCE INFORMATION As noted in the EVM User’s Guide and/or EVM itself, this EVM and/or accompanying hardware may or may not be subject to the Federal Communications Commission (FCC) and Industry Canada (IC) rules. For EVMs not subject to the above rules, this evaluation board/kit/module is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end product fit for general consumer use. It generates, uses, and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or ICES-003 rules, which are designed to provide reasonable protection against radio frequency interference. Operation of the equipment may cause interference with radio communications, in which case the user at his own expense will be required to take whatever measures may be required to correct this interference. General Statement for EVMs including a radio User Power/Frequency Use Obligations: This radio is intended for development/professional use only in legally allocated frequency and power limits. Any use of radio frequencies and/or power availability of this EVM and its development application(s) must comply with local laws governing radio spectrum allocation and power limits for this evaluation module. It is the user’s sole responsibility to only operate this radio in legally acceptable frequency space and within legally mandated power limitations. Any exceptions to this are strictly prohibited and unauthorized by Texas Instruments unless user has obtained appropriate experimental/development licenses from local regulatory authorities, which is responsibility of user including its acceptable authorization. For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant Caution This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. FCC Interference Statement for Class A EVM devices This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. FCC Interference Statement for Class B EVM devices This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. For EVMs annotated as IC – INDUSTRY CANADA Compliant This Class A or B digital apparatus complies with Canadian ICES-003. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. Concerning EVMs including radio transmitters This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Concerning EVMs including detachable antennas Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication. This radio transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device. Cet appareil numérique de la classe A ou B est conforme à la norme NMB-003 du Canada. Les changements ou les modifications pas expressément approuvés par la partie responsable de la conformité ont pu vider l’autorité de l'utilisateur pour actionner l'équipement. Concernant les EVMs avec appareils radio Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement. Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante. Le présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés dans le manuel d’usage et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur. SPACER SPACER SPACER SPACER SPACER SPACER SPACER SPACER 【Important Notice for Users of EVMs for RF Products in Japan】 】 This development kit is NOT certified as Confirming to Technical Regulations of Radio Law of Japan If you use this product in Japan, you are required by Radio Law of Japan to follow the instructions below with respect to this product: 1. 2. 3. Use this product in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal Affairs and Communications on March 28, 2006, based on Sub-section 1.1 of Article 6 of the Ministry’s Rule for Enforcement of Radio Law of Japan, Use this product only after you obtained the license of Test Radio Station as provided in Radio Law of Japan with respect to this product, or Use of this product only after you obtained the Technical Regulations Conformity Certification as provided in Radio Law of Japan with respect to this product. Also, please do not transfer this product, unless you give the same notice above to the transferee. Please note that if you could not follow the instructions above, you will be subject to penalties of Radio Law of Japan. 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It is intended solely for use for preliminary feasibility evaluation in laboratory/development environments by technically qualified electronics experts who are familiar with the dangers and application risks associated with handling electrical mechanical components, systems and subsystems. It should not be used as all or part of a finished end product. Your Sole Responsibility and Risk. You acknowledge, represent and agree that: 1. 2. 3. 4. You have unique knowledge concerning Federal, State and local regulatory requirements (including but not limited to Food and Drug Administration regulations, if applicable) which relate to your products and which relate to your use (and/or that of your employees, affiliates, contractors or designees) of the EVM for evaluation, testing and other purposes. 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Any loads applied outside of the specified output range may result in unintended and/or inaccurate operation and/or possible permanent damage to the EVM and/or interface electronics. Please consult the EVM User's Guide prior to connecting any load to the EVM output. If there is uncertainty as to the load specification, please contact a TI field representative. During normal operation, some circuit components may have case temperatures greater than 60°C as long as the input and output are maintained at a normal ambient operating temperature. These components include but are not limited to linear regulators, switching transistors, pass transistors, and current sense resistors which can be identified using the EVM schematic located in the EVM User's Guide. When placing measurement probes near these devices during normal operation, please be aware that these devices may be very warm to the touch. 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