Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
NJM2114MD-TE2

NJM2114MD-TE2

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

0

NJU7044M

NJU7044M

New Japan Radio (NJR)

IC OP AMP RRIO QUAD 14DMP

0

NJM13700M-TE2

NJM13700M-TE2

New Japan Radio (NJR)

IC OPAMP TRANSCOND 2 CIRC 16DMP

0

NJM072L

NJM072L

New Japan Radio (NJR)

IC OPAMP JFET 2 CIRCUIT 8SSOP

0

NJM072BV-TE1

NJM072BV-TE1

New Japan Radio (NJR)

IC OPAMP JFET 2 CIRCUIT 8SSOP

0

NJM4741M-TE2

NJM4741M-TE2

New Japan Radio (NJR)

IC OPAMP GP 4 CIRCUIT 14DMP

0

NJM082BL

NJM082BL

New Japan Radio (NJR)

IC OPAMP JFET 2 CIRCUIT 8SSOP

0

NJM2123M-TE2

NJM2123M-TE2

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 16DMP

0

NJM2120L

NJM2120L

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8SIP

0

NJM13700M-TE1

NJM13700M-TE1

New Japan Radio (NJR)

IC OPAMP TRANSCOND 2 CIRC 16DMP

0

NJM064M-TE1

NJM064M-TE1

New Japan Radio (NJR)

IC OPAMP JFET 4 CIRCUIT 14DMP

0

NJM2123V-TE2

NJM2123V-TE2

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 16SSOP

0

NJM2123V-TE1

NJM2123V-TE1

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 16SSOP

0

NJM082BV-TE1

NJM082BV-TE1

New Japan Radio (NJR)

IC OPAMP JFET 2 CIRCUIT 8SSOP

0

NJM2114L

NJM2114L

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8SIP

0

NJM4559L

NJM4559L

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8SIP

0

NJM13600M-TE1

NJM13600M-TE1

New Japan Radio (NJR)

IC OPAMP TRANSCOND 2 CIRC 16DMP

0

NJM084M

NJM084M

New Japan Radio (NJR)

IC OPAMP JFET 4 CIRCUIT 14DMP

0

NJM064MT-TE2

NJM064MT-TE2

New Japan Radio (NJR)

IC OPAMP JFET 4 CIRCUIT 14DMP

0

NJU7044M-TE2

NJU7044M-TE2

New Japan Radio (NJR)

IC OP AMP RRIO QUAD 14DMP

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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