Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
NJU7026F3-TE1

NJU7026F3-TE1

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT SC88A

0

NJM2710V-TE1#

NJM2710V-TE1#

New Japan Radio (NJR)

IC OPAMP GP 6 CIRCUIT 20SSOP

0

NJU7096R-TE1

NJU7096R-TE1

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8VSP

6

NJU7024M

NJU7024M

New Japan Radio (NJR)

IC OPAMP GP 4 CIRCUIT 14DMP

0

NJU7098AF1-TE1

NJU7098AF1-TE1

New Japan Radio (NJR)

IC CMOS 1 CIRCUIT SOT23-6

2758

NJM2748AM

NJM2748AM

New Japan Radio (NJR)

IC OPAMP JFET 1 CIRCUIT 8DMP

0

NJM2729E-TE1

NJM2729E-TE1

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT 8EMP

0

NJM2794V-TE1

NJM2794V-TE1

New Japan Radio (NJR)

IC OPAMP ISOLATION 2 CIRC 14SSOP

0

NJU7092AF-TE1#

NJU7092AF-TE1#

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT SOT23-5

0

NJM4580R-TE2

NJM4580R-TE2

New Japan Radio (NJR)

IC AUDIO 2 CIRCUIT 8VSP

641

NJM4565D

NJM4565D

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DIP

0

NJU77552RB1-TE1

NJU77552RB1-TE1

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8TVSP

1479

NJM4558E-TE2

NJM4558E-TE2

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8SOP

0

NJM4559D

NJM4559D

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DIP

634

NJU7008F3-TE1

NJU7008F3-TE1

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT SC88A

5249

NJM2746M-TE1

NJM2746M-TE1

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

0

NJM13403D1

NJM13403D1

New Japan Radio (NJR)

IC OPAMP GP 4 CIRCUIT 14DIP

0

NJU7096M#

NJU7096M#

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

0

NJM2732D

NJM2732D

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DIP

0

NJM8524V-TE2

NJM8524V-TE2

New Japan Radio (NJR)

IC OPAMP GP 4 CIRCUIT 14SSOP

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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