Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
NJM2058M-TE2

NJM2058M-TE2

New Japan Radio (NJR)

IC OPAMP GP 4 CIRCUIT 14DMP

0

NJM2904CV-TE1

NJM2904CV-TE1

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8SSOP

0

NJU7029RB1-TE1

NJU7029RB1-TE1

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8TVSP

0

NJM4558V-TE2

NJM4558V-TE2

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8SSOP

0

NJM2732V-TE1

NJM2732V-TE1

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8SSOP

0

NJMOP2277GE-TE1

NJMOP2277GE-TE1

New Japan Radio (NJR)

LOW NOISE PRECISION OPAMP

0

NJU7066R-TE1

NJU7066R-TE1

New Japan Radio (NJR)

PRECISION, LOW NOISE, RAIL-TO-RA

0

NJM4580L

NJM4580L

New Japan Radio (NJR)

IC AUDIO 2 CIRCUIT 8SIP

0

NJMOP277GE-TE1

NJMOP277GE-TE1

New Japan Radio (NJR)

LOW NOISE PRECISION OPAMP

0

NJM2747M-TE1

NJM2747M-TE1

New Japan Radio (NJR)

IC OPAMP GP 4 CIRCUIT 14DMP

0

NJM2734M-TE1

NJM2734M-TE1

New Japan Radio (NJR)

IC OPAMP GP 4 CIRCUIT 14DMP

0

NJM064CAG-TE2

NJM064CAG-TE2

New Japan Radio (NJR)

IC OPAMP JFET 4 CIRCUIT 14SOP

0

NJM4565L

NJM4565L

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8SIP

0

NJU77903DL3-TE1

NJU77903DL3-TE1

New Japan Radio (NJR)

IC CMOS 1 CIRCUIT TO252-5

0

NJU77001F3-TE2

NJU77001F3-TE2

New Japan Radio (NJR)

IC CMOS 1 CIRCUIT SC88A

0

NJU77806F3-TE1

NJU77806F3-TE1

New Japan Radio (NJR)

IC CMOS 1 CIRCUIT SC88A

0

NJM2741F3-TE1

NJM2741F3-TE1

New Japan Radio (NJR)

IC OPAMP GP 1 CIRCUIT SC88A

0

NJU77552KU1-TE3

NJU77552KU1-TE3

New Japan Radio (NJR)

1.7MHZ, 50UA/CH, RAIL-TO-RAIL OP

3000

NJU7048G-TE2

NJU7048G-TE2

New Japan Radio (NJR)

IC CMOS 4 CIRCUIT 14SOP

0

NJMOP2277FR-TE1

NJMOP2277FR-TE1

New Japan Radio (NJR)

LOW NOISE PRECISION OPAMP

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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