Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
NJU7015M

NJU7015M

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

0

NJM2730F-TE1

NJM2730F-TE1

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT SOT23-5

1845

NJU77551F-TE1

NJU77551F-TE1

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT SOT23-5

4818

NJM062CG-TE2

NJM062CG-TE2

New Japan Radio (NJR)

IC OPAMP JFET 2 CIRCUIT 8SOP

2419

NJU7001M#

NJU7001M#

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT 8DMP

0

NJU7043M-TE1

NJU7043M-TE1

New Japan Radio (NJR)

IC CMOS 2 CIRCUIT 8DMP

0

NJM8512AE-TE2

NJM8512AE-TE2

New Japan Radio (NJR)

IC OPAMP JFET 2 CIRCUIT 8SOP

0

NJU7021M

NJU7021M

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT 8DMP

0

NJM4580CG-TE2

NJM4580CG-TE2

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8SOP

2092

NJM2132M

NJM2132M

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

0

NJU7095M

NJU7095M

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

138

NJU7072D

NJU7072D

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DIP

0

NJM2059M

NJM2059M

New Japan Radio (NJR)

IC OPAMP GP 4 CIRCUIT 14DMP

0

MUSES01

MUSES01

New Japan Radio (NJR)

IC AUDIO 2 CIRCUIT 8DIP

0

NJU7026F-TE1

NJU7026F-TE1

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT SOT23-5

0

NJM2119M

NJM2119M

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

1388

NJM2060V-TE1

NJM2060V-TE1

New Japan Radio (NJR)

IC OPAMP GP 4 CIRCUIT 14SSOP

0

NJM2136M#

NJM2136M#

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT 8DMP

0

NJU7081M

NJU7081M

New Japan Radio (NJR)

IC AUDIO 1 CIRCUIT 8DMP

0

NJU7043RB1-TE1

NJU7043RB1-TE1

New Japan Radio (NJR)

IC CMOS 2 CIRCUIT 8TVSP

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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