Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
NJMOP07D

NJMOP07D

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT 8DIP

0

NJU7095V-TE1

NJU7095V-TE1

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8SSOP

3743

NJM2740M-TE1

NJM2740M-TE1

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

0

NJU7057RB1-TE2

NJU7057RB1-TE2

New Japan Radio (NJR)

IC CMOS 2 CIRCUIT 8TVSP

1901

NJM2740V-TE1

NJM2740V-TE1

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8SSOP

0

NJM062CAG-TE2

NJM062CAG-TE2

New Japan Radio (NJR)

IC OPAMP JFET 2 CIRCUIT 8SOP

0

NJM4558DD

NJM4558DD

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DIP

0

NJU7021D#

NJU7021D#

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT 8DIP

0

NJU7061M

NJU7061M

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT 8DMP

0

NJU7091AF-TE1#

NJU7091AF-TE1#

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT SOT23-5

0

NJU7043E-TE2

NJU7043E-TE2

New Japan Radio (NJR)

IC CMOS 2 CIRCUIT 8SOP

0

NJM2902N

NJM2902N

New Japan Radio (NJR)

IC OPAMP GP 4 CIRCUIT 14DIP

27

NJM842G-TE2

NJM842G-TE2

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8SOP

2360

NJM2710V-TE1

NJM2710V-TE1

New Japan Radio (NJR)

IC OPAMP GP 6 CIRCUIT 20SSOP

3304

NJM2732E-TE1

NJM2732E-TE1

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8SOP

0

NJU7040F-TE1

NJU7040F-TE1

New Japan Radio (NJR)

IC CMOS 1 CIRCUIT SOT23-5

0

NJU7051M#

NJU7051M#

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT 8DMP

0

NJM5532M

NJM5532M

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

2425

NJU7096RB1-TE1

NJU7096RB1-TE1

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8TVSP

2335

NJM8513AV-TE1

NJM8513AV-TE1

New Japan Radio (NJR)

IC OPAMP JFET 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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