Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
NJM2734V-TE1

NJM2734V-TE1

New Japan Radio (NJR)

IC OPAMP GP 4 CIRCUIT 14SSOP

0

NJM2060M

NJM2060M

New Japan Radio (NJR)

IC OPAMP GP 4 CIRCUIT 14DMP

0

NJM2058D

NJM2058D

New Japan Radio (NJR)

IC OPAMP GP 4 CIRCUIT 14DIP

2306

NJU7014D#

NJU7014D#

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DIP

0

NJU7072M#

NJU7072M#

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

0

NJM8202R-TE2

NJM8202R-TE2

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8VSP

0

NJU7034D

NJU7034D

New Japan Radio (NJR)

IC OPAMP GP 4 CIRCUIT 14DIP

0

NJU7096V-TE2#

NJU7096V-TE2#

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8SSOP

0

NJM8534V-TE1

NJM8534V-TE1

New Japan Radio (NJR)

IC OPAMP GP 4 CIRCUIT 14SSOP

0

NJM8068RB1-TE1

NJM8068RB1-TE1

New Japan Radio (NJR)

IC AUDIO 2 CIRCUIT 8TVSP

0

NJU7028V-TE2

NJU7028V-TE2

New Japan Radio (NJR)

IC CMOS 4 CIRCUIT 14SSOP

0

NJU7008F3-TE1#

NJU7008F3-TE1#

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT SC88A

0

NJU7095M#

NJU7095M#

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

0

NJM2904CG-TE2

NJM2904CG-TE2

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8SOP

1965

NJM2060D#

NJM2060D#

New Japan Radio (NJR)

IC OPAMP GP 4 CIRCUIT 14DIP

0

NJM2732RB1-TE1

NJM2732RB1-TE1

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8TVSP

0

NJM2737M-TE1

NJM2737M-TE1

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

0

NJU7094V-TE1#

NJU7094V-TE1#

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8SSOP

0

NJM2125F-TE1

NJM2125F-TE1

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT SOT23-5

0

NJM2712M-TE1

NJM2712M-TE1

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

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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