Linear ICs

Operational Amplifier ICs

• What is an op-amp?
• What types of op-amps are available?
• What types of amplifier circuits can be configured using an op-amp?
• Why is feedback used in op-amps?
• What are open-loop and closed-loop gains of an op-amp?
• For what applications are op-amps used?
• What is the purpose of using a differential amplifier such as an op amp? (Common-mode rejection ratio: CMRR)
• Characteristics of op-amps (What is the ideal op-amp?)
• What is the input offset voltage of an op-amp?
• What is the virtual short-circuit (virtual ground) of an op-amp?
• What is the maximum frequency at which an op-amp can be used?
• Is it necessary to connect bypass capacitors to the power supply terminal of an op-amp?
• Is there any way to amplify a signal with a voltage close to the power supply level?
• What types of noise affect an op-amp?
• Are there any considerations for using an op-amp at low voltage?
• What is the common-mode input voltage (CMV_IN) of an op-amp?
• What does rail-to-rail mean (Rail-to-Rail Op amp) ?
• How can I provide hysteresis (schmitt trigger) for a comparator?
• Why are voltage followers prone to oscillation?

Thermoflagger™ (Over temperature detection IC)

• What is Thermoflagger™?
• What specific applications are Thermoflagger™ used for?
• How many PTC thermistors can be connected simultaneously?
• Is it possible to identify the heating point when several PTC thermistors are connected?
• How accurate is the detected temperature?
• What temperature ranges can be detected?
• How do I select a PTC thermistor to use with Thermoflagger™?

Transistor Arrays

• How to distinguish RoHS compliant transistor array products?
• Is Halogen-free available?
• What does the symbol at the end of the product name mean?

Automotive Audio Power Amplifier ICs

• What is the symbol at the end of the product name?
• How do I calculate the current consumption and power dissipation?
• How do I estimate the junction temperature?
• How do I obtain the thermal resistance of the heat sink?
• Is there a problem with installing a capacitor to the output?
• What is the electric potential of the heat sink (metallic surface) on back side of IC package? Is that a GND?

For Linear ICs