Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
NJM13600M

NJM13600M

New Japan Radio (NJR)

IC OPAMP TRANSCOND 2 CIRC 16DMP

371

MUSES8920D

MUSES8920D

New Japan Radio (NJR)

IC OPAMP JFET 2 CIRCUIT 8DIP

0

NJU7011F-TE1#

NJU7011F-TE1#

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT SOT23-5

0

NJU7058V-TE2

NJU7058V-TE2

New Japan Radio (NJR)

IC CMOS 4 CIRCUIT 14SSOP

0

NJM2132D

NJM2132D

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DIP

0

NJU7095R-TE1

NJU7095R-TE1

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8VSP

0

NJU7007F3-TE1#

NJU7007F3-TE1#

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT SC88A

0

NJU7098F1-TE1

NJU7098F1-TE1

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT SOT23-6

0

NJU77550F-TE1

NJU77550F-TE1

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT SOT23-5

4380

NJM4556AD

NJM4556AD

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DIP

3334

NJM5532DD

NJM5532DD

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DIP

0

NJM8530F-TE1

NJM8530F-TE1

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT SOT23-5

0

NJM3474G-TE2

NJM3474G-TE2

New Japan Radio (NJR)

IC OPAMP GP 4 CIRCUIT 14SOP

2305

NJM8202E-TE1

NJM8202E-TE1

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8EMP

0

NJU7078V-TE1

NJU7078V-TE1

New Japan Radio (NJR)

IC CMOS 4 CIRCUIT 14SSOP

0

NJM4556AM

NJM4556AM

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

2967

NJM13700M

NJM13700M

New Japan Radio (NJR)

IC OPAMP TRANSCOND 2 CIRC 16DMP

55

NJM2068M

NJM2068M

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

1352

NJU7062M

NJU7062M

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

0

NJU7009F3-TE1

NJU7009F3-TE1

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT SC88A

0

Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

1. Overview

Linear amplifiers are analog ICs that process continuous signals with high fidelity. This category includes instrumentation amplifiers (In-Amps), operational amplifiers (OP Amps), and buffer amplifiers. They are critical in signal conditioning, filtering, and voltage amplification across electronics, medical devices, and industrial systems.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Instrumentation AmplifiersHigh CMRR, low offset voltage, fixed/gain-programmableSensor bridges, medical instrumentation, precision data acquisition
Operational AmplifiersVoltage feedback, high gain, configurable circuitsActive filters, integrators, comparators, audio amplifiers
Buffer AmplifiersHigh input impedance, unity gain, drive capabilityADC drivers, signal isolation, impedance matching

3. Structure and Composition

Typical IC construction includes: - Differential Input Stage: Bipolar/JFET transistors for high impedance - Gain Stage: Cascoded amplification with laser-trimmed resistors - Output Stage: Class AB push-pull for low distortion - Protection Circuits: ESD protection, thermal shutdown Packaged in 8-20 pin configurations (SOIC, TSSOP, QFN).

4. Key Technical Specifications

ParameterImportance
Gain Bandwidth Product (GBP)Determines frequency response capability
Input Offset Voltage (Vos)Impacts DC precision in low-level signal amplification
Slew Rate (SR)Defines maximum signal transition speed
Common-Mode Rejection Ratio (CMRR)Measures noise/interference immunity
Quiescent Current (Iq)Impacts power efficiency in battery applications

5. Application Fields

  • Medical: ECG machines, blood analyzers
  • Industrial: PLCs, strain gauge interfaces
  • Consumer: Audio preamplifiers, sensor hubs
  • Telecom: Fiber optic transimpedance amplifiers
  • Automotive: Battery management system sensors

6. Leading Manufacturers and Products

ManufacturerProduct Highlights
Analog DevicesAD8221 (Instrumentation Amp), OP1177 (Precision OP Amp)
TILM741 (Classic OP Amp), INA128 (Low-power In-Amp)
STMicroelectronicsTSV912 (Rail-to-Rail OP Amp), LMV358 (Low-voltage Buffer)
MaximMAX4463 (Audio Buffer), MAX41460 (High-speed OP Amp)

7. Selection Guidelines

Key considerations: - Bandwidth vs. power consumption trade-off - Required CMRR in noisy environments - Rail-to-rail output for low-voltage systems - Temperature stability in industrial applications - Cost-sensitive vs. precision design priorities

8. Industry Trends

Future directions include: - Sub-1V operation for IoT devices - Integration with digital calibration (smart amplifiers) - GaN/SiC-based amplifiers for high-voltage applications - AI-driven parameter optimization tools - Automotive-grade amplifiers for ADAS systems

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