Description

Operational amplifiers (op amps, op-amps) are general-purpose, closed-loop devices that are used to implement linear functions. They compare two incoming signals and release a third signal that is an amplified measure of the difference between the two.

Applications

Operational amplifiers are used in signal processing circuits, control circuits, and instrumentation for automotive, commercial, industrial, medical and military applications.

Input impedance and output impedance vary by op-amp application. For example, in audio applications, the input impedance is usually several times higher than the output impedance. In video and high frequency systems, the impedance of inputs, transmission lines, and outputs are designed to be the same.

Specifications

• Minimum closed-loop gain (A_VCL)
• Supply voltage (V_S)
• Source current (I_S)
• Input offset voltage (V_OS)
• Input bias current (I_BIAS)
• Quiescent current (I_Q)
• Input voltage noise (V_n)
• Input current noise (I_n)
• Output voltage swing (V_OM)
• Common mode rejection ratio (CMRR)
• Power supply rejection ratio (PSRR)
• Gain-bandwidth product (GBW)
• Slew rate (SR)
• Bandwidth
• Operating temperature

Features

• Rail-to-rail input
• Rail-to-rail output
• Single supply
• Thermal shutdown protection
• On-chip electrostatic discharge (ESD) protection

Variations

Operational amplifier chips (op amp chips, op-amp chips) vary by integrated circuit (IC) package type, life cycle stage, pin count, and number of devices.

IC package types include:

• Dual in-line package (DIP)
• Ceramic dual in-line package (CDIP)
• Plastic dual in-line package (PDIP)
• Single in-line package (SIP)
• Chip scale package (CSP)
• Small outline IC (SOIC)
• Transistor outline (TO)
• Small outline transistor (SOT)
• Plastic leaded carrier (PLCC)

Standards

Like other ICs, op amp chips follow the product lifecycle stage as defined by EIA-724. The stages in the model are defined as introduction, new product, rapid growth, maturity, declining, saturation, phase-out, and removed.

Restriction of Hazardous Substances (RoHS) is a European Union (EU) directive that requires all manufacturers of electronic and electrical equipment sold in Europe to demonstrate that their products contain only minimal levels of the following hazardous substances:

• Lead
• Mercury
• Cadmium
• Hexavalent chromium
• Polybrominated biphenyl
• Polybrominated diphenyl ether

The EU’s End of Life Vehicles (ELV) directive requires that certain automotive products be free (except for trace impurities) of mercury, cadmium and lead. Operational amplifiers that meet other national or international standards are also available.

SMD 5962-00541 - MICROCIRCUIT, LINEAR, OPERATIONAL AMPLIFIER, CMOS, MONOLITHIC SILICON

SMD 5962-06206 - MICROCIRCUIT, LINEAR, DUAL, HIGH PRECISION, OPERATIONAL AMPLIFIER, MONOLITHIC SILICON

SMD 5962-07212 - MICROCIRCUIT, LINEAR, DUAL, CURRENT FEEDBACK OPERATIONAL AMPLIFIER, MONOLITHIC SILICON

References

Image Credit:

ROHM Semiconductor, USA LLC