App note from Analog Devices discussing bootstrapping its rail voltage to compensate operating range of an op amp. Link here (PDF) When an off the shelf operational amplifier (op amp) cannot provide the signal swing range needed for a particular application, the engineer is faced with using a high voltage op amp or designing a […]
Tag Archives: Operational Amplifier
App note: Custom instrumentation amplifier design
A detailed design of an instrumentation amplifier found in this app note from Renesas. Link here (PDF) This application note describes some of the fine points of designing an instrumentation amplifier with op-amps. We will cover how to maintain good common-mode rejection and output signal linearity. In addition, we will explain various filters that can […]
App note: Battery powered overdrive pedal for guitar effects
App note from Renesas about building a guitar pedal overdrive effect using only 2 x AA instead of 9V battery, this app note demonstrate the low rail to rail voltage OpAmp SLG88104V in use. Link here (PDF) Amplified guitars appeared in the early 1930’s. However, at that time early recording artists strove for clean orchestra […]
App note: MUX-friendly precision operational amplifiers
Another App note from Texas Instruments on op-amp input safety from breakdown voltages during source switch-over. Link here (PDF) Multiplexing is a frequently used technique to perform data acquisition in multichannel systems with minimal signal-chain requirements. In this context, the role of the multiplexer (MUX) in an acquisition system is to switch between channels, and […]
App note: Fast Rail-to-Rail operational amplifiers ease design constraints in low voltage high speed systems
Migration to lower rail voltages considerations on operational amplifier designs an Application note from Analog Devices. Link here (PDF) Movement towards lower power supply voltages is driven by the demand that systems consume less and less power coupled with the desire to reduce the number of power supply voltages in the system. Lowering power supply […]