Analog Interfacing to Embedded Microprocessor Systems addresses the technologies and methods used in connecting analog devices to microprocessors, providing in-depth coverage of practical control applications, op amp examples, and much more. A companion to author Stuart Ball's popular Embedded Microprocessor Systems: Real World Design, this embedded systems book focuses on the measurement and control of analog quantities in embedded systems that are required to interpret real-world input. At a time when modern electronic systems are increasingly digital, a comprehensive source on creating an interface between the real world and microprocessors should prove invaluable to embedded systems engineers, students, technicians, and hobbyists. Anyone involved in connecting the analog environment to their digital machines, or troubleshooting such connections, will find this book especially useful. Stuart Ball is also the author of Debugging Embedded Microprocessor Systems. Analog Interfacing to Embedded Microprocessors Highlights - Provides hard-to-find information on getting analog devices and technologies to communicate with the purely digital world of embedded microprocessors
- Gives you the insight and perspective of a real embedded systems design engineer, including tips that only a hands-on professional would know
- Covers important considerations for both hardware and software systems when linking analog and digital devices
Table of Contents System Design - Dynamic Range
- Calibration
- Bandwidth
- Processor Throughput
- Avoiding Excess Speed
- Other System Considerations
- Sample Rate and Aliasing
Analog-to-Digital Converters - ADCs
- Types of ADCs
- ADC Comparison
- Sample and Hold
- Real Parts
- Microprocessor Interfacing
- Clocked Interfaces
- Serial Interfaces
- Multichannel ADCs
- Internal Microcontroller ADCs
- Codecs
- Interrupt Rates
- Dual-Function Pins on Microcontrollers
- Design Checklist
Sensors - Temperature Sensors
- Optical Sensors
- CCDs
- Magnetic Sensors
- Motion/Acceleration Sensors
- Strain Gauges
Time-Based Measurements - Measuring Period versus Frequency
- Mixing
- Voltage-to-Frequency Converters
- Clock Resolution and Range
- Extending Accuracy with Limited Resolution
Output Control Methods - Open-Loop Control
- Negative Feedback and Control
- Microprocessor-Based Systems
- On-Off Control
- Overshoot
- Proportional Control
- Proportional, Integral, Derivative Control
- Motor Control
- Predictive Control
- Measuring and Analyzing Control Loops
- PID Software Examples
- Things to Remember in Control Design
Solenoids, Relays, and Other Analog Outputs - Solenoids
- Heaters
- Coolers
- LEDs
- DACs
- Digital Potentiometers
- Analog Switches
Motors - Stepper Motors
- DC Motors
- Tradeoffs between Motors
- Power-Up Issues
- Motor Torque
- A Real-World Stepper Application
Electromagnetic Interference - Ground Loops
- Electrostatic Discharge
High-Precision Applications - Input Offset Voltage
- Input Resistance
- Frequency Characteristics
- Temperature Effects in Resistors
- Voltage References
- Temperature Effects in General
- Noise and Grounding
- Printed Circuit Board Layout
- Statistical Tolerancing
- Supply-Based References
- Summary
Standard Interfaces - IEEE 1451.2
- 4-20 mA Current Loop
- Fieldbus
Analog Toolbox - Microcontroller Supply and Reference
- Resistor Networks
- Multiple Input Control
- AC Control
- Voltage Monitors and Supervisory Circuits
- Driving Bipolar Transistors
- Driving MOSFETs
- Reading Negative Voltages
- Example Control System
Appendix A: Opamp Basics - Opamp Configurations
- General Opamp Design Equations
- Nonresistive Elements
- Reversing the Inputs
- Comparators
- Hysteresis
- Instrumentation Amplifiers
Appendix B: Pulse Width Modulation - Why PWM?
- Real Parts
- Frequency Limitations
- Resolution Limitations
- Power-Supply Considerations
- PWM and EMI
- Audio Applications
- PWM Hardware
- PWM Software
Appendix C: Useful URLs - Semiconductors
- Motors
- Other
Appendix D: Python Code for Chapter 11; Excel Data for Chapter 4 Glossary Index Paperback; 320 pages
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