Amplifier Mezzanine Card User Guide UG-1224 One Technology Way * P.O. Box 9106 * Norwood, MA 02062-9106, U.S.A. * Tel: 781.329.4700 * Fax: 781.461.3113 * www.analog.com Amplifier Mezzanine Card for ADC Drivers The AMC can support any of Analog Devices operational amplifiers and ADC drivers in different packages. The user can configure the ADC driver as a Sallen-Key low-pass, high-pass, or band-pass filter, as a multiple feedback low-pass, high-pass, or band-pass filter, or as an inverting and noninverting operational amplifier. The user can also configure the AMC to drive a singleended, fully differential, or a single-ended signal to a differential ADC. FEATURES Enables quick breadboarding and prototyping User defined circuit configuration Easy connection to other ADC evaluation boards COMPATIBLE PULSAR EVALUATION BOARDS 10-lead PulSAR(R) evaluation board GENERAL DESCRIPTION Optimized power and ground planes ensure low noise and high speed operation. Component placement and power supply bypassing are optimized for maximum circuit flexibility and performance. The AMC evaluation board accepts 0402 or 0603 surface mount technology (SMT) components, 1206 bypass capacitors, and 2.54 mm headers. The Analog Devices, Inc., amplifier mezzanine card (AMC) analog-to-digital converter (ADC) driver evaluates the performance of amplifiers in 8-lead, single and dual SOIC, 6lead single SOT23, 8-lead dual MSOP, and 16-lead LFCSP packages. This add on board can be inserted on ADC evaluation boards using its 7-pin header. Figure 1 shows the AMC mounted on an Analog Devices, Inc., ADC evaluation board. All components are placed on the primary side. No components are placed on the secondary side. 16423-001 EVALUATION BOARD PHOTOGRAPH Figure 1. PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. 0 | Page 1 of 14 UG-1224 Amplifier Mezzanine Card User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Fully Differential Amplifier .........................................................9 Compatible PulSAR Evaluation Boards ........................................ 1 Differential Input Configuration ................................................9 General Description ......................................................................... 1 Multiple Feedback LPF Configuration .......................................9 Evaluation Board Photograph......................................................... 1 Schematic, Assembly Drawings, and Board Layout .................. 10 Revision History ............................................................................... 2 8-Lead SOIC Single AMC Schematic ...................................... 10 Board Assembly ................................................................................ 3 6-Lead SOT23 Single AMC Schematic ................................... 11 Introduction .................................................................................. 3 8-Lead MSOP and SOIC Dual AMC Schematic .................... 12 Single Amplifier ............................................................................ 3 16-Lead LFCSP Fully Differential AMC Schematic .............. 13 Dual Amplifier .............................................................................. 7 REVISION HISTORY 1/2019--Revision 0: Initial Version Rev. 0 | Page 2 of 14 Amplifier Mezzanine Card User Guide UG-1224 BOARD ASSEMBLY INTRODUCTION The AMC allows the user to set the ADC driver to different types of active filter configurations and op amp layouts such as inverting and noninverting. The user can also configure the AMC to drive a single-ended, fully differential, and a single-ended signal to differential ADC. Place user defined capacitors on the R7 and R8 resistors, user defined capacitors on the C3 and C4 board positions, and resistors on the R1, R2, R3, R4, R9, R10, R17, and R18 resistors. Place a 0 resistor on C5 and C6 for the feedback to achieve the Sallen-Key low-pass filter configuration. SINGLE AMPLIFIER The AMC for single amplifiers can support ADC drivers that come in 8-lead SOIC and 6-lead SOT23 packages (see Figure 2 and Figure 3). 8 POWER DOWN -IN 2 7 +VS +IN 3 6 VOUT -VS 5 NC 4 16423-019 1 16423-022 TOP VIEW (Not to Scale) NC Figure 2. Example of a Single Amplifier in SOIC Package VOUT 1 6 +VS -VS 2 5 POWER DOWN +IN 3 4 -IN 16423-020 Figure 5. Sallen-Key, Low-Pass Filter for 8-Lead SOIC, Single Board Connections Figure 3. Example of a Single Amplifier on SOT23 Package Low-Pass Filter The user can configure a Sallen-Key, low-pass filter on the AMC. C1 R1 OUT R2 C2 R4 16423-023 R3 16423-021 IN Figure 6. Sallen-Key, Low-Pass Filter for 6-Lead SOT23, Single Board Connections Figure 4. Sallen-Key, Low-Pass Filter Rev. 0 | Page 3 of 14 UG-1224 Amplifier Mezzanine Card User Guide C1 Multiple Feedback, Low-Pass Filter The user can configure a multiple feedback, low-pass filter on the AMC. OUT C2 R2 Place a 0 resistor on R7 and R8 to connect the noninverting input to ground, and place the user defined capacitors on the C1, C2, C5, and C6 capacitors and the resistors on the R15, R16, R17, R18, R19, and R20 resistors. R4 16423-027 R3 Figure 10. Sallen-Key, High-Pass Filter OUT C5 R4 IN R1 IN R3 R1 16423-024 C2 16423-028 Figure 7. Multiple Feedback, Low-Pass Filter 16423-025 Figure 11. Sallen-Key, High-Pass Filter for 8-Lead SOIC, Single Board Connections 16423-029 Figure 8. Multiple Feedback, Low-Pass Filter for 8-Lead SOIC, Single Board Connections For the multiple feedback, high-pass filter configuration, place the user defined capacitors on the R15, R16, R17, R18, R19, and R20 resistors, resistors on the R9 and R10 resistors, and resistors on the C5 and C6 capacitors. Place a 0 resistor on R7 and R8. OUT Figure 9. Multiple Feedback, Low-Pass for 6-Lead SOT23, Single Board Connections C4 High-Pass Filter R5 C1 Place capacitors on the R1, R2, R3, and R4 resistors, resistors on the R7, R8, R9, R10, R17, and R18 resistors, and resistors on the C3 and C4 capacitors. Place a 0 resistor on C5 and C6 to configure the AMC board into a Sallen-Key high-pass filter. This configuration is similar to the low-pass filter except replace the resistors on the noninverting input to capacitors and vice versa. Rev. 0 | Page 4 of 14 C3 IN R2 Figure 13. Multiple Feedback, High-Pass Filter 16423-030 16423-026 Figure 12. Sallen-Key, High-Pass Filter for 6-Lead SOT23, Single Board Connection 16423-034 UG-1224 16423-031 Amplifier Mezzanine Card User Guide Figure 17. Sallen-Key, Band-Pass Filter for 8-Lead SOIC, Single Board Configuration Figure 14. Multiple Feedback, High-Pass Filter for 8-Lead SOIC, Single Board Connections OUT C4 R5 C3 R1 R2 16423-035 IN 16423-032 Figure 18. Multiple Feedback, Band-Pass Filter Figure 15. Multiple Feedback, High-Pass Filter for 6-Lead SOT23, Single Board Connections In a Sallen-Key, band-pass filter, place capacitors on the R3, R4, R5, and R6 resistors, resistors on the R1, R2, R7, R8, R9, R10, R13, and R14 resistors, and resistors on the C3 and C4 capacitors. Place a 0 resistor on C5 and C6 and put a jumper on P3 to short VCM to ground. OUT R1 C1 C2 Figure 19. Multiple Feedback, Band-Pass Filter for 8-Lead SOIC, Single Board Connections To achieve a multiple feedback, band-pass filter, place capacitors on the R17, R18, R19, and R20 resistors, resistors on the R9, R10, R15, and R16 resistors, and resistors on the C5 and C6 capacitors. Place a 0 resistor on R7 and R8. R2 R3 R4 R5 16423-033 IN 16423-036 Band-Pass Filter Figure 16. Sallen-Key, Band-Pass Filter Rev. 0 | Page 5 of 14 UG-1224 Amplifier Mezzanine Card User Guide Inverting Configuration OP AMP For the inverting configuration, place 0 resistors on R7, R8, R15, and R16. Place the user defined resistor values to set the gain of the amplifier on R9 and R10 for RF and R17 and R18 for RG. VOUT G = VOUT/VIN = 1 + (RF/RG) RG RF 16423-040 RIN VIN Figure 23. Noninverting Amplifier Configuration VOUT 16423-037 VIN RF 16423-041 Figure 20. Inverting Amplifier 16423-038 Figure 24. Noninverting Amplifier for 8-Lead SOIC, Single Board Configuration 16423-042 Figure 21. Inverting Amplifier for 8-Lead SOIC, Single Board Configuration 16423-039 Figure 25. Noninverting Amplifier Configuration for 6-Lead SOT23, Single Board Configuration Figure 22. Inverting Amplifier for 6-Lead SOT23, Single Board Configuration Noninverting Configuration To configure the AMC board into a noninverting amplifier, place 0 resistors at R1, R2, R3, and R4 to connect the input to the noninverting input of the amplifier. To set the gain of the amplifier, place the user defined resistor values on R9 and R10 for RF and R17 and R18 for RG and place a 0 resistor on C5 and C6 to connect RG to ground. Rev. 0 | Page 6 of 14 Amplifier Mezzanine Card User Guide UG-1224 second amplifiers, as well as RG on R17 and R18. Then, place a 0 resistor on C5 and C6 to connect RG straight to ground. DUAL AMPLIFIER OUT1 1 8 +VS -IN1 2 7 OUT2 +IN1 3 6 -IN2 -VS 4 5 +IN2 TOP VIEW (Not to Scale) 16423-043 The AMC also supports dual amplifiers that can aid op amps and ADC drivers that come in 8-lead MSOP and 8-lead SOIC packages. Dual amplifier have two amplifiers inside one package. Figure 26. Dual Amplifier, 8-Lead MSOP (RM) and 8-Lead SOIC (R) Package 16423-046 Low-Pass Filter Figure 27. Sallen-Key, Low-Pass Filter 8-Lead SOIC, Dual Board Configuration Figure 29. Multiple Feedback Low-Pass Filter 8-Lead SOIC, Dual AMC Configuration 16423-047 16423-044 Similar to single amplifiers, the user can configure the dual amplifier to different types of filter topologies except instead of two ICs, the user only uses one IC. Figure 30. Multiple Feedback, Low-Pass Filter 8-Lead MSOP, Dual AMC Configuration For a multiple feedback configuration, place the user defined resistor values on R15, R17, and R19 for the first amplifier and R16, R18, and R20 for the second amplifier. Place the capacitors on C1 and C5 for the first amplifier and C2 and C6 for the second amplifier. 16423-045 High-Pass Filter Figure 28. Sallen-Key, Low-Pass Filter 8-Lead MSOP, Dual Board Configuration A Sallen-Key, low-pass filter can also be configured on the dual AMC. To set the cutoff frequency of the filter, place the user defined resistor values for the filter on R1 and R3 on one amplifier and R2 and R4 for the other one. Place the user defined capacitor values on R7 and C3 for the first amplifier and R8 and C4 for the second amplifier. To set the gain of the amplifier, place the necessary feedback resistors on R9 and R10 for the first and To achieve a Sallen-Key, high-pass filter configuration, place a 0 resistor at C5 and C6, then place the user defined resistor values for the gain setting on R9 and R10 (RF) and R17 and R18 (RG). Place resistors on R7, R8, C3, and C4 as well as capacitors on R1, R2, R3, and R4 to dictate the cutoff frequency. The configuration is almost the same as in Sallen-Key, low-pass filter, but the resistors and capacitors interchange in the noninverting input of the amplifier. In the case of a multiple feedback, high-pass filter, place the 0 resistor on R7 for the first amplifier and R8 for the second. Then, place the user defined resistor values on C5 and R9 for the first amplifier and C6 and R10 for the second amplifier. Then, place capacitors on R15, R17, and R19 for the first amplifier and on R16, R18, and R20 for the second amplifier. Rev. 0 | Page 7 of 14 UG-1224 Amplifier Mezzanine Card User Guide Band-Pass Filter 16423-051 For a band-pass filter in a Sallen-Key configuration, connect VCM to ground and place the user defined resistor values to design the filter on R1, R2, R7, R8, C3, C4, R4, R3, R5, and R6. To set the gain of the amplifier, place RF on R9 and RG on R13. Do the same for the second amplifier with RG on R14 and RF on R10. Figure 34. Multiple Feedback, Band-Pass Filter for 8-Lead SOIC, Dual Board Configuration 16423-048 Inverting Configuration Place 0 resistors on R7, R8, R15, and R16. Set the gain of the amplifier with R9 and R10 for RF and R17 and R18 for RG. 16423-052 Figure 31. Sallen-Key, Band-Pass Filter for 8-Lead MSOP, Dual Board Configuration 16423-049 Figure 35. Inverting Amplifier for 8-Lead MSOP, Dual Board Configuration Figure 32. Sallen-Key, Band-Pass Filter for 8-Lead SOIC, Dual Board Configuration Place 0 resistors on R1, R2, R3, and R4 to connect the input to the noninverting input of the amplifier. Set the gain with R9 and R10 for RF and R17 and R18 for RG and place a 0 resistor on C5 and C6 to connect RG to ground. 16423-050 16423-053 In the case for multiple feedback, band-pass filters, mount a 0 resistor on R7 and R8. Place the user defined resistor values on R9, R10, R15, R17, C5, and C6. As well as the user defined capacitors values on R17, R18, R19, and R20 (see Figure 44). Noninverting Configuration Figure 36. Noninverting Amplifier for 8-Lead SOIC, Dual Board Configuration Figure 33. Multiple Feedback, Band-Pass Filter for 8-Lead MSOP, Dual Board Configuration Rev. 0 | Page 8 of 14 Amplifier Mezzanine Card User Guide UG-1224 FULLY DIFFERENTIAL AMPLIFIER The AMC for fully differential amplifiers supports 16-lead LFCSP packages. Two basic configurations are shown in Figure 37 and Figure 38. For additional configurations, refer to the schematic in Figure 49. DIFFERENTIAL INPUT CONFIGURATION Install 0 resistors on R1, R2, R5, R6, R11, R12, L1, and L2. Install 0 resistors on R27, R28, R30, and R23. Install a 0.1 F capacitor on C7. Install supply bypass capacitors on C8 and C9. C3 and C4 are the feedback resistors. R7 and R8 are the gain resistors. Install jumpers on the second and third positions on the MODE jumper and CLAMPH jumper (see Figure 37). MULTIPLE FEEDBACK LPF CONFIGURATION Fully differential amplifier based, multiple feedback, low-pass filters (LPFs) can be designed using an op-amp based, multiple feedback filter configuration, as shown in Figure 39. OUT R9, R10 C3, C4 R5, R6 R7, R8 2xC1 16423-055 IN 16423-054 Figure 39. Multiple Feedback, Low Pass Filter 16423-056 Figure 37. Standard Differential Input Configuration Install 0 resistors on R1, R4, R11, R12, L1, L2, R27, R28, R30, and R23. Install a 0.1 F capacitor on C7. Install jumpers on the second and third positions on the MODE jumper and CLAMPH jumper (see Figure 38). Figure 38. Multiple Feedback, Low Pass Filter Configuration Rev. 0 | Page 9 of 14 UG-1224 Amplifier Mezzanine Card User Guide SCHEMATIC, ASSEMBLY DRAWINGS, AND BOARD LAYOUT 8-LEAD SOIC SINGLE AMC SCHEMATIC R19 C5 VCC VEE C1 C13 C14 R9 R13 VCM R15 7 R17 2 VINP R1 P1 VS+ 8 VN PD VO 6 VP 3 VS- R3 VINN 4 R5 R11 R21 P2 VEE C17 R25 VCC VEE R24 R23 VCM C11 C12 R26 VEE R7 VCM PD1 VOUTP C7 VCC P5 C3 VOUTP P3 R28 VINP R22 R20 C6 C10 P3 VCC R14 C9 R16 R10 C15 C16 VOUTN C18 VCM R18 VS+ 8 VN PD VO 6 VP 3 VS- R2 R4 VEE R12 VOUTN C8 PD2 4 R6 VCM VCC P6 2 VINN R27 VEE 7 R8 16423-010 VEE PD-IN R29 VCC VEE C2 C3 Figure 41. 8-Lead SOIC, Single AMC Assembly Drawing, Primary Side Rev. 0 | Page 10 of 14 16423-012 16423-011 Figure 40. 8-Lead SOIC, Single AMC Schematic Figure 42. 8-Lead SOIC, Single AMC Layout Pattern, Primary Side Amplifier Mezzanine Card User Guide UG-1224 6-LEAD SOT23 SINGLE AMC SCHEMATIC R19 C5 VCC VEE C1 C13 R13 C14 R9 VCM R15 VN R17 4 VINP R1 P1 VP R3 VINN 6 VS+ 5 IC1 PD VO 1 VS- 3 R21 2 R5 R11 P2 VEE C17 R25 VCC VEE R24 R23 C11 VCM C12 R26 VEE R7 VCM PD1 VOUTP C7 VCC P5 C3 VOUTP P3 R28 VINP R22 R20 C6 C10 P3 VCC R14 C9 R16 R10 C15 C16 VOUTN C18 VCM R18 VN VS+ 5 PD VO 1 VP IC2 3 VS- R2 R4 VEE R12 VOUTN C8 PD2 2 R6 VCM VCC P6 4 VINN R27 VEE 6 R8 16423-013 VEE PD-IN R29 VCC VEE C2 C4 Figure 44. 6-Lead SOT23, Single AMC Assembly Drawing, Primary Side Rev. 0 | Page 11 of 14 16423-015 16423-014 Figure 43. 6-Lead SOT23, Single AMC Schematic Figure 45. 6-Lead SOT23, Single AMC Layout Pattern, Primary Side UG-1224 Amplifier Mezzanine Card User Guide 8-LEAD MSOP AND SOIC DUAL AMC SCHEMATIC R19 C5 VCC VEE C1 C13 C14 R9 R13 VCM R15 VN R17 2 VINP R1 P1 IC1:A VO R3 VINN 8 VS+ VP R5 1 VS- 3 R11 R21 4 P2 VEE C17 R25 VCC VEE R24 R23 C11 VCM C12 R26 VEE R7 VCM PD1 VOUTP C7 VCC P5 C3 VOUTP P3 R28 VINP R22 R20 C6 C10 P3 VCC R14 C9 R16 VCM R18 VN 6 VOUTN VCC P6 VS+ 7 VS- 5 VEE R12 VOUTN C8 PD2 4 VP R6 R27 VEE 8 IC1:B VO R4 VCM C16 C18 VINN R2 C15 R10 R8 16423-016 VEE PD-IN R29 VCC VEE C2 C4 16423-017 16423-018 Figure 46. 8-Lead MSOP and SOIC, Dual AMC Schematic Figure 47. 8-Lead MSOP, Dual AMC Assembly Drawing, Primary Side Rev. 0 | Page 12 of 14 Figure 48. 8-Lead MSOP, Dual AMC Layout Pattern, Primary Side Amplifier Mezzanine Card User Guide UG-1224 16-LEAD LFCSP FULLY DIFFERENTIAL AMC SCHEMATIC P1 DNI 1 2 LOGIC VEE 69157-102HLF VCC DNI VEE 69157-102HLF DNI EXT_L 69157-102HLF VCC VEE 5 4 3 2 DNI R15 TBD0402 TBD0402 DNI R27 VEE R28 AGND 0.1UF 1 -FB 2 +IN 3 -IN 4 +FB DNI TBD0402 C1 TBD0402 R8 VCC TBD0402 DNI TBD0402 DNI C4 R2 5 4 3 2 C3 TBD0402 DNI R6 TBD0402 DNI R3 TBD0402 DNI AGND 0.1UF TBD0402 TBD0402 DNI AGND U1 DNI VCC C2 TBD0402 DNI VOUTN AGND TBD0805 DNI PD R12 L2 TBD0402 DNI TBD0805 DNI ADA4945-1 1 2 1 2 VCC AGND TSW-103-08-G-S TBD0402 DNI DNI R13 TBD0402 DNI R14 TBD0402 AGND AGND DNI C5 TBD0402 DNI C6 TBD0402 VCC R10 MODE DNI J2 L1 R11 12 PD DISABLE_N 11 -OUT 10 +OUT 9 VOCM VOCM TBD0402 DNI R4 TBD0402 DNI 5 4 3 2 VEE AGND TBD0402 DNI R7 VOUTN SMA-J-P-H-ST-EM1 1 C12 TBD0402 DNI AGND DNI R9 AGND DNI R16 TBD0402 TBD0402 DNI AGND VEE LOGIC AGND R5 R1 VINN SMA-J-P-H-ST-EM1 1 LOGIC DNI 1 2 69157-102HLF DNI R17 TBD0402 VEE AGND AGND DNI J1 VINP 1 VINP AGND 2 GND 3 VEE VREF 4 VCM 5 VCC AGND 6 GND VINN 7 VINN MTSW-107-07-T-S-240 DNI R21 TBD0402 DNI R22 TBD0402 1 2 1 2 PAD PAD 16 LOGIC 15 -VS 14 -VS 13 -VCLAMP DNI R18 TBD0402 VINP SMA-J-P-H-ST-EM1 1 DNI R19 5 MODE 6 +VS 7 +VS 8 +VCLAMP DNI R20 TBD0402 VCC DNI 69157-102HLF EXT_H DNI 69157-102HLF AGND AGND 1 2 3 DNI R25 TBD0402 VOUTN 1 GND 2 NC 3 PD 4 TBD0402 NC 5 AGND 6 GND DNI VOUTP VOUTP 7 MTSW-107-07-T-S-240 R29 VOUTP SMA-J-P-H-ST-EM1 1 5 4 3 2 AGND DNI C13 TBD0402 LOGIC AGND POWER DOWN VOCM SUPPLIES VCC VCC C8 10UF 1 2 3 DNI C10 TBD0402 R26 TBD0402 DNI PD C9 10UF TSW-103-08-G-S C11 0.1UF AGND VREF R30 DNI R23 TBD0402 TBD0402 DNI VCM 1 69157-102HLF 2 DNI DNI 69157-102HLF 1 2 VOCM C7 0.1UF DNI R24 TBD0402 PD AGND VEE LOGIC AGND AGND 16423-111 DNI P3 Figure 50. 16-Lead LFCSP, Single AMC Assembly Drawing, Primary Side Rev. 0 | Page 13 of 14 16423-113 16423-112 Figure 49. 16-Lead LFCSP, Single AMC Schematic Figure 51. 16-Lead LFCSP, Single AMC Layout Pattern, Primary Side UG-1224 Amplifier Mezzanine Card User Guide NOTES ESD Caution ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality. Legal Terms and Conditions By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the "Evaluation Board"), you are agreeing to be bound by the terms and conditions set forth below ("Agreement") unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you ("Customer") and Analog Devices, Inc. ("ADI"), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal, temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additional limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term "Third Party" includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. 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Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby submits to the personal jurisdiction and venue of such courts. The United Nations Convention on Contracts for the International Sale of Goods shall not apply to this Agreement and is expressly disclaimed. (c)2019 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. UG16423-0-1/19(0) Rev. 0 | Page 14 of 14