OA-16: OA-16 Wideband AGC Amplifier As A Differential Amplifier:  National Semiconductor - Application Note   (app note added 2/06)

Operational Integrators:  AN-357 - Analog Devices Application Notes  (app note added 2/06)

Port-Powered Temperature Meter:  This is a four-channel temperature measurement adapter that works without external power supply. It will suitable for measuring temperature and logging its data with a PC.  (Schematic / circuit added 10/05)

Precision Level Shifter Has Excellent CMRR:  04/15/04 EDN Design Ideas  /  (added 1/05)  Most designers make level shifters with op amps and 1%-tolerance discrete resistors. Discrete-resistor mismatching limits the op amp's CMMR (common-mode rejection ratio) to 40 dB, so you cannot use op amps in circuits that require high CMRR. Differential amplifiers contain precision matched internal resistors, so ICs such as the INA133 can readily achieve CMRRs of approximately 90 dB....

Radio Spectrum Monitor:  This is an experimental project to analyze radio band in FFT.  (Schematic / circuit added 10/05)

Revolution Meter:  Revolution meter by measuring method of strobe synchronization. It can measure up to 100,000 rpm in two ranges.  (Schematic / circuit added 10/05)

RF Isolator Uses Differential Amplifiers:  (Electronic circuit added 7/03)

Settling Time of Operational Amplifiers:  AN-359 - Analog Devices Application Notes  (app note added 2/06)

Shielding and Guarding:  AN-347 - Analog Devices Application Notes  (app note added 2/06) How to Exclude Interference-Type Noise. What to do and Why to do it-A Rational Approach

Single Amplifier Precision High Voltage Instrument Amp:  DN25 -  Design Notes (Linear Technology) (app note added 1/06)

Universal Counter:  Typical frequency counter that built by electronics hobbyists. This counter can measure time periods and has communication interface, so that I named this "Universal Counter".  (Schematic / circuit added 10/05)

Universal Evaluation Board for High Speed Op Amps - Dual in MSOP package:  AN-648 - Analog Devices Application Notes  (app note added 2/06)

Universal Evaluation Board for High Speed Op Amps - Dual SOIC Package:  AN-647 - Analog Devices Application Notes  (app note added 2/06)

Universal Evaluation Board for High Speed Op Amps - Single in SOIC Package:  AN-646 - Analog Devices Application Notes  (app note added 2/06)

Universal Precision Op Amp Evaluation Board:  AN-692 - Analog Devices Application Notes  (app note added 2/06)

User's Guide to Applying and Measuring Operational Amplifier Specifications:  AN-356 - Analog Devices Application Notes  (app note added 2/06)

Using the AD813X Differential Amplifier:  AN-584 - Analog Devices Application Notes  (added 2/06) The AD813x differs from conventional op amps by the external presence of an additional input and output. The additional input, VOGM, controls the output common mode voltage. (app note added 2/06)

Using the Analog Devices Active Filter Design Tool:  AN-649 - Analog Devices Application Notes (app note added 2/06)

Ways to Optimize the Performance of a Difference Amplifier:  AN-589 - Analog Devices Application Notes  (added 2/06) This Application Note presents several ways to build and optimize the performance of a discrete difference amplifier. It also recommends amplifiers that will make the overall solution cost/performance competitive with monolithic instrument amplifiers. (app note added 2/06)

Wideband AGC Amplifier As A Differential Amplifier:  National Semiconductor - Application Note (app note added 2/06)