LM324 Low Power Quad Op-Amp IC DIP-14

Featured: LM324IC

• Short Circuited Protected Outputs
• True Differential Input Stage
• Single Supply Operation: 3.0 V to 32 V
• Low Input Bias Currents: 100 nA Maximum (LM324A)
• Four Amplifiers Per Package
• Internally Compensated
• Common Mode Range Extends to Negative Supply
• Industry Standard Pinouts
• ESD Clamps on the Inputs Increase Ruggedness without Affecting Device Operation
• NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable
• These Devices are Pb−Free, Halogen Free/BFR Free, and are RoHS Compliant

Applications: LM324IC

• Transducer Amplifiers
• DC Gain Blocks
• Conventional Op-Amp Circuits

The LM324 series is made using four internally compensated, two−stage operational amplifiers. The first stage of each consists of differential input devices Q20 and Q18 with input buffer transistors Q21 and Q17 and the differential to single-ended converter Q3 and Q4. The first
stage performs not only the first stage gain function but also performs the level shifting and transconductance reduction functions. By reducing the transconductance, a smaller compensation capacitor (only 5.0 pF) can be employed, thus saving the chip area. The transconductance reduction is accomplished by splitting the collectors of Q20 and Q18. Another feature of this input stage is that the input common-mode range can include the negative supply or ground, in a single-supply operation, without saturating either the input
devices or the differential to the single−ended converter. The second stage consists of a standard current source load amplifier stage.