Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
NJM072BE-TE1

NJM072BE-TE1

New Japan Radio (NJR)

IC OPAMP JFET 2 CIRCUIT 8SOP

0

NJM072M-TE3

NJM072M-TE3

New Japan Radio (NJR)

IC OPAMP JFET 2 CIRCUIT 8DMP

0

NJM2082M-TE1

NJM2082M-TE1

New Japan Radio (NJR)

IC OPAMP JFET 2 CIRCUIT 8DMP

0

NJU7015D

NJU7015D

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DIP

0

NJM064V-TE2

NJM064V-TE2

New Japan Radio (NJR)

IC OPAMP JFET 4 CIRCUIT 14SSOP

0

NJM082BD

NJM082BD

New Japan Radio (NJR)

IC OPAMP JFET 2 CIRCUIT 8DIP

0

NJM2121M#

NJM2121M#

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

0

NJM2114MD-TE3

NJM2114MD-TE3

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

0

NJM5534D

NJM5534D

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT 8DIP

0

NJU7031M

NJU7031M

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT 8DMP

0

NJM741M-TE2

NJM741M-TE2

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT 8DMP

0

NJM064D#

NJM064D#

New Japan Radio (NJR)

IC OPAMP JFET 4 CIRCUIT 14DIP

0

NJM072M-TE2

NJM072M-TE2

New Japan Radio (NJR)

IC OPAMP JFET 2 CIRCUIT 8DMP

0

NJM318M-TE2

NJM318M-TE2

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT 8DMP

0

NJM082M-TE1

NJM082M-TE1

New Japan Radio (NJR)

IC OPAMP JFET 2 CIRCUIT 8DMP

0

NJM14558M

NJM14558M

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

0

NJM4560E-TE2

NJM4560E-TE2

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8SOP

0

NJU7061D

NJU7061D

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT 8DIP

0

NJM2114MD-TE1

NJM2114MD-TE1

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

0

NJM2060D

NJM2060D

New Japan Radio (NJR)

IC OPAMP GP 4 CIRCUIT 14DIP

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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