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April 2001 Mixed-Signal Products User ’ s Guide SLOU061A.
IMPORT ANT NOTICE T exas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify , before placing orders, that information being relied on is current and complete.
iii Chapter Title — Attribute Reference Preface Related Documentation From T exas Instruments Amplifiers and Comparators Data Book (literature number SLOD002). This data book contains data sheets and other information on the TI operational amplifiers that can be used with this evaluation module.
iv.
Running Title — Attribute Reference v Chapter Title — Attribute Reference Contents 1 Introduction 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 Design Features 1-2 .
Running Title — Attribute Reference vi Figures 2 – 1 Area 100 Schematic — Single Device, SOIC (8-pin) 2-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 2 Area 200 Schematic — Dual Device, SOIC (14-pin) 2-4 . . . . . . .
1-1 Introduction Introduction This user ’ s guide describes the universal operational amplifier single, dual, quad (SOIC) evaluation module (EVM) with shutdown (SLOP248). The EVM simplifies evaluation of T exas Instruments surface-mount op amps with or without shutdown feature.
Design Features 1-2 Introduction 1.1 Design Features The EVM board design allows many circuits to be constructed easily and quickly . There are three circuit development areas on the board, and each uses IC amplifiers in the SOIC package. Area 100 is for a single operational amplifier (op amp), with or without shutdown.
2-1 Evaluation Module Layout Evaluation Module Layout This chapter shows the universal operational amplifier single, dual, quad (SOIC) evaluation module (EVM) with shutdown board layout, schematics of each area, and describes the relationships between the three areas.
Physical Considerations 2-2 Evaluation Module Layout 2.1 Physical Considerations The EVM board has three circuit development areas. Each area can be separated from the others by breaking along the score lines. The circuit layout in each area supports an op amp package, voltage reference, and ancillary devices.
Physical Considerations 2-3 Evaluation Module Layout 2.2 Area 100 — Single Device SOIC Area 100 uses 1xx reference designators, and is compatible with a single op amp, with or without shutdown, packaged as an 8-pin SOIC. This surface-mount package is designated by a D suffix in TI part numbers, as in TxxxxCD, TxxxxID, etc.
Physical Considerations 2-4 Evaluation Module Layout 2.3 Area 200 — Dual Device SOIC Area 200 uses 2xx reference designators, and is compatible with dual op amps, with or without shutdown, packaged as an 8-pin (without shutdown) or 14-pin (with shutdown) SOIC.
Physical Considerations 2-5 Evaluation Module Layout 2.4 Area 300 — Quad Device SOIC Area 300 uses 3xx reference designators, and is compatible with quad op amps, with or without shutdown, packaged in a 14-pin (without shutdown) or 16-pin (with shutdown) SOIC.
Physical Considerations 2-6 Evaluation Module Layout Figure 2 – 3. Area 300 Schematic — Quad Device SOIC (16 pin) C313 C314 C31 1 C312 V3+ V3 – V3+ GND3 V3 – Power Supply Bypass + – 4 1 13 3.
General Power Dissipation Considerations 2-7 Evaluation Module Layout 2.5 General Power Dissipation Considerations For a given θ JA , the maximum power dissipation is shown in Figure 2 – 4 and is c.
EVM Component Placement 2-8 Evaluation Module Layout 2.6 EVM Component Placement Figure 2 – 5 shows component placement for the EVM board. Figure 2 – 5.
EVM Board Layout 2-9 Evaluation Module Layout 2.7 EVM Board Layout Figures 2 – 6 and 2 – 7 show the EVM top and bottom board layouts, respectively .
EVM Board Layout 2-10 Evaluation Module Layout Figure 2 – 7. EVM Board Layout — Bottom.
3-1 Example Circuits Example Circuits This chapter shows and discusses several example circuits that can be constructed using the universal operational amplifier EVM. The circuits are all classic designs that can be found in most operational amplifier design books.
Schematic Conventions 3-2 Example Circuits 3.1 Schematic Conventions Figures 3 – 1 through 3 – 6 show schematic examples of circuits that can be constructed using the universal operational amplifier EVM with shutdown. The components that are placed on the board are shown in bold.
Noninverting Amplifier 3-3 Example Circuits 3.3 Noninverting Amplifier Figure 3 – 2 shows area 100 equipped with a single operational amplifier configured as a noninverting amplifier with single-supply power input. Basic setup is done by choice of input and feedback resistors.
Differential Amplifier 3-4 Example Circuits 3.4 Differential Amplifier Figure 3 – 3 shows area 100 equipped with a single operational amplifier configured as a differential amplifier using a voltage reference and single power supply . Basic setup is done by choice of input and feedback resistors.
Sallen-Key Low-Pass Filter 3-5 Example Circuits 3.5 Sallen-Key Low-Pass Filter Figure 3 – 4 shows area 200 equipped with a dual operational amplifier configured as a second-order Sallen-Key low-pass filter using dual-power supplies. Basic setup is done by proper choice of resistors R and mR, and capacitors C and nC.
Sallen-Key High-Pass Filter 3-6 Example Circuits 3.6 Sallen-Key High-Pass Filter Figure 3 – 5 shows area 200 equipped with a dual operational amplifier configured as a second-order Sallen-Key high-pass filter using single-supply power input. Basic setup is done by proper choice of resistors R and mR, and capacitors C and nC.
Sallen-Key High-Pass Filter 3-7 Example Circuits Figure 3 – 5. Sallen-Key High-Pass Filter With Single Supply Using Area 200 C206 C207 C209 C210 V2+ V2 – V2+ GND2 V2 – Power Supply Bypass + – .
T wo Operational Amplifier Instrumentation Amplifier 3-8 Example Circuits 3.7 T wo Operational Amplifier Instrumentation Amplifier Figure 3 – 6 shows area 200 equipped with a dual operational amplifier configured as a two-operational-amplifier instrumentation amplifier using a voltage reference and single power supply .
T wo Operational Amplifier Instrumentation Amplifier 3-9 Example Circuits Figure 3 – 6. T wo Operational Amplifier Instrumentation Amplifier Wwith Single Supply Using Area 200 C206 C207 C209 C210 V2.
Quad Operational Amplifier Instrumentation Amplifier 3-10 Example Circuits 3.8 Quad Operational Amplifier Instrumentation Amplifier Figure 3 – 7 shows area 300 equipped with a quad operational amplifier configured as a quad-operational-amplifier instrumentation amplifier using a dual power supply .
Quad Operational Amplifier Instrumentation Amplifier 3-1 1 Example Circuits Figure 3 – 7. Quad Operational Amplifier Instrumentation Amplifier With Dual Supply Using Area 300 + – 4 1 13 3 2 V3+ V3.
3-12 Example Circuits.
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