Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
NJU7022M#

NJU7022M#

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

0

NJU7015D#

NJU7015D#

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DIP

0

NJU77554V-TE1

NJU77554V-TE1

New Japan Radio (NJR)

IC OPAMP GP 4 CIRCUIT 14SSOP

1925

NJM12904M

NJM12904M

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

0

NJU77002RB1-TE2

NJU77002RB1-TE2

New Japan Radio (NJR)

IC CMOS 2 CIRCUIT 8TVSP

2818

NJM3472R-TE1

NJM3472R-TE1

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8VSP

0

NJU77552G-TE2

NJU77552G-TE2

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8SOP

1363

NJM2904CRB1-TE1

NJM2904CRB1-TE1

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8TVSP

0

NJM13403M

NJM13403M

New Japan Radio (NJR)

IC OPAMP GP 4 CIRCUIT 14DMP

0

NJU7006F-TE1

NJU7006F-TE1

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT SOT23-5

177

NJU7032M

NJU7032M

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

0

NJM8512AR-TE2

NJM8512AR-TE2

New Japan Radio (NJR)

IC OPAMP JFET 2 CIRCUIT 8VSP

0

NJU7095D

NJU7095D

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DIP

34

NJM2739E-TE1

NJM2739E-TE1

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8EMP

0

NJU7011F-TE1

NJU7011F-TE1

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT SOT23-5

958

NJM13404D#

NJM13404D#

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DIP

0

NJU7095V-TE1#

NJU7095V-TE1#

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8SSOP

0

NJU7016D#

NJU7016D#

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DIP

0

NJU77551F3-TE1

NJU77551F3-TE1

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT SC88A

0

NJM12904D

NJM12904D

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DIP

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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