Datasheet

23
Signal Chain Design Guide
Op Amps
AN1302: Current Sensing Circuit Concepts
and Fundamentals
This application note provides an overview of current
sensing circuit concepts and fundamentals. It introduces
current sensing techniques and focuses on three typical
high-side current sensing implementations, with their
specific advantages and disadvantages.
AN679: Temperature Sensing Technologies
Covers the most popular temperature sensor
technologies and helps determine the most appropriate
sensor for an application.
AN681: Reading and Using Fast Fourier
Transformation (FFT)
Discusses the use of frequency analysis (FFTs), time
analysis and DC analysis techniques. It emphasizes
Analog-to-Digital converter applications.
AN684: Single Supply Temperature Sensing
with Thermocouples
Focuses on thermocouple circuit solutions. It builds
from signal conditioning components to complete
application circuits.
AN695: Interfacing Pressure Sensors to Microchip’s
Analog Peripherals
Shows how to condition a Wheatstone bridge sensor
using simple circuits. A piezoresistive pressure sensor
application is used to illustrate the theory.
AN699: Anti-Aliasing, Analog Filters for Data
Acquisition Systems
A tutorial on active analog filters and their most
common applications.
AN722: Operational Amplifier Topologies and
DC Specifications
Defines op amp DC specifications found in a data sheet.
It shows where these specifications are critical in
application circuits.
AN723: Operational Amplifier AC Specifications
and Applications
Defines op amp AC specifications found in a data sheet.
It shows where these specifications are critical in
application circuits.
AN866: Designing Operational Amplifier Oscillator
Circuits For Sensor Applications
Gives simple design procedures for op amp oscillators.
These circuits are used to accurately measure resistive
and capacitive sensors.
AN884: Driving Capacitive Loads With Op Amps
Explains why all op amps tend to have problems driving
large capacitive loads. A simple, one resistor compensation
scheme is given that gives much better performance.
AN951: Amplifying High-Impedance Sensors,
Photodiode Example
Shows how to condition the current out of a high-impedance
sensor. A photodiode detector illustrates the theory.
AN990: Analog Sensor Conditioning Circuits,
An Overview
Gives an overview of the many sensor types, applications
and conditioning circuits.
AN1014: Measuring Small Changes in
Capacitive Sensors
This application note shows a switched capacitor circuit
that uses a PIC microcontroller, and minimal external
passive components, to measure small changes in
capacitance. The values are very repeatable under
constant environmental conditions.
AN1177: Op Amp Precision Design: DC Errors
This application note covers the essential background
information and design theory needed to design a
precision DC circuit using op amps.
AN1228: Op Amp Precision Design: Random Noise
This application note covers the essential background
information and design theory needed to design low noise,
precision op amp circuits. The focus is on simple, results
oriented methods and approximations useful for circuits
with a low-pass response.
AN1258: Op Amp Precision Design: PCB
Layout Techniques
This application note covers Printed Circuit Board (PCB)
effects encountered in high (DC) precision op amp circuits.
It provides techniques for improving the performance,
giving more flexibility in solving a given design problem. It
demonstrates one important factor necessary to convert a
good schematic into a working precision design.
Related Support Material