Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
LMR358FVM-GTR

LMR358FVM-GTR

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8MSOP

2467

LMR981G-GTR

LMR981G-GTR

ROHM Semiconductor

IC OPAMP GP 1 CIRCUIT 6SSOP

2940

BU7462SNUX-TR

BU7462SNUX-TR

ROHM Semiconductor

IC OPAMP GP 2 CIRC VSON008X2030

0

BU7264FV-E2

BU7264FV-E2

ROHM Semiconductor

IC CMOS 4 CIRCUIT 14SSOPB

1654

BA10358F-E2

BA10358F-E2

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8SOP

1218

BU7462SFVM-TR

BU7462SFVM-TR

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8MSOP

0

BA4560YF-MGE2

BA4560YF-MGE2

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8SOP

2463

LMR824FVJ-E2

LMR824FVJ-E2

ROHM Semiconductor

IC OPAMP GP 4 CIRCUIT 14TSSOP

2290

LMR822FVM-GTR

LMR822FVM-GTR

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8MSOP

2716

BA4558YFV-MGE2

BA4558YFV-MGE2

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8SSOPB

1250

BU7245SHFV-TR

BU7245SHFV-TR

ROHM Semiconductor

IC OPAMP GP 1 CIRCUIT HVSOF5

2905

BU7475HFV-TR

BU7475HFV-TR

ROHM Semiconductor

IC OPAMP GP 1 CIRCUIT HVSOF5

2794

LMR932F-GE2

LMR932F-GE2

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8SOP

2260

BA4558RFVT-E2

BA4558RFVT-E2

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8TSSOP

2921

BA2904YFV-CE2

BA2904YFV-CE2

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8SSOPB

233

BA2902YF-CE2

BA2902YF-CE2

ROHM Semiconductor

IC OPAMP GP 4 CIRCUIT 14SOP

2405

BA8522RF-E2

BA8522RF-E2

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8SOP

146

BA2904SFVM-TR

BA2904SFVM-TR

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8MSOP

1240

BA2904FV-E2

BA2904FV-E2

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8SSOPB

1059

LM358FJ-GE2

LM358FJ-GE2

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT SOP8J

2145

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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