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Operational Amplifier Topologies and DC Specifications

From Microchip Technology, Inc.
 

 
Operational amplifiers (op amps) are as prolific in analog circuits as salt and pepper is on food. They are sprinkled throughout the sensor data acquisition system, performing a variety of functions. For instance, at the sensor interface, amplifiers are used to buffer and gain the sensor output. The current or voltage excitation to the sensor, quite often is generated by an amplifier circuit. Following the front end sensor circuitry, an op amp is used to implement a low pass, band pass or high pass filter. In this portion of the circuit, gain stages are also implemented using programmable gain amplifiers or instrumentation amplifiers whose building blocks are the op amp. Analog-to-Digital (A/D) converters are most typically driven by an amplifier in order to achieve good converter performance.
Product Announcements
Microchip Technology, Inc. - First Operational Amplifiers (Op Amps)
Microchip Technology Inc., a leading provider of microcontroller and analog semiconductors, today announced the world's first and only op amps to include mCal, an on-chip calibration circuit that... (read more)
M.S. Kennedy Corp. - MSK181 Operational Amplifier
The new MSK181 operational amplifier, along with its dual sister versions, the MSK182, MSK183, MSK184 and MSK185 are feature packed monolithic high current high voltage devices. (read more)
Microchip Technology, Inc. - Low-Power, High-Precision Op Amps
Microchip Technology Inc., a leading provider of microcontroller and analog semiconductors, today announced three new families of low-power, high-precision operational amplifiers (op amps); meaning... (read more)
UltraVolt, Inc. - FL Series Floating Hot Deck LVPS
The "FL" series of floating hot deck low voltage power supplies give designers an integrated solution for systems requiring LV power & controls with high voltage isolation. Combining a highly isolated... (read more)
Acopian Power Supplies - DC-DC Converters - Shipped Within 3 Days
DC-DC Converters; Mini Encapsulated - PC Board Mounting; REGULATED; single output & dual tracking outputs; (5Vdc in to 48Vdc in); Shipped Within 3 Days; One Year Warranty... (read more)
American Microsemiconductor, Inc. - CA2818C Wideband Linear Amplifier
Hybrid Push-Pull Circuit design. For use in 50 ohm and 100 ohm wideband amplifier applications. Pin for Pin Direct replacement for MOTOROLA and TRW parts. AMS is now supplying the wideband linear... (read more)
US EuroTek, Inc. - Drivers and Controllers for piezo actuators
To fulfill various requirements in terms of driving and control conditions for its piezo actuators (static, pulse, dynamic), the CEDRAT Group has developed 3 different families of standard... (read more)
UltraVolt, Inc. - "EFL" Series Enhanced Floating Hot Deck LVPS
The "EFL" Series of floating-hot-deck, LV power supplies offers an integrated solution for systems requiring LV power & controls with HV isolation. The "EFL" sub-system provides both power and... (read more)
Avago Technologies - - Plastic Automotive Isolation Amplifier
The ACPL-782T isolation amplifier family was designed for current sensing in electronic motor drives and battery system. A differential output voltage is created on the other side of the ACPL-782T... (read more)
 
Topics of Interest
OVERVIEW The operational amplifier, which has become one of the most versatile and important building blocks in analog circuit design, is introduced in this chapter. The operational amplifier (op... (Read More)
Operational amplifiers, "op-amps" for short, are utilized in many areas of electronics, in filters, amplifiers, analog-to-digital and digital-to-analog converters, and in any circuit (below VHF... (Read More)
2.1 Introduction Operational amplifiers (op-amps) are perhaps the most important element in analog circuits and deserve the most attention from the circuit designer. The design of op-amps has been... (Read More)
TB077 Advantages of Microchip's Cascaded Op Amps Author: Kumen Blake Microchip Technology Inc. V IN V OUT INTRODUCTION Microchip has introduced cascaded dual op amps: R R 2 4 R R 1 3 MCP627X (2 MHz),... (Read More)
Section 6-6: Composite Amplifiers Walt Jung The term "composite op amp" can mean a variety of things. In the most general sense of the word, any additional circuitry at either the input or the... (Read More)