Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
SA5230DR2

SA5230DR2

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 1 CIRCUIT 8SOIC

0

LF351M

LF351M

Sanyo Semiconductor/ON Semiconductor

IC OPAMP JFET 1 CIRCUIT 8SOP

0

TCA0372DM2EL

TCA0372DM2EL

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 2 CIRCUIT 16SOEIAJ

0

MC34071APG

MC34071APG

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 1 CIRCUIT 8DIP

0

LMV324AMTC14X

LMV324AMTC14X

Sanyo Semiconductor/ON Semiconductor

IC OPAMP VFB 4 CIRCUIT 14TSSOP

0

SCV33074ADTBR2G

SCV33074ADTBR2G

Sanyo Semiconductor/ON Semiconductor

IC OP AMP SGL SUPP QUAD 14TSSOP

0

LM2902VDTBR2

LM2902VDTBR2

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 4 CIRCUIT 14TSSOP

0

KA2904DMTF

KA2904DMTF

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 2 CIRCUIT 8SOIC

0

KA5532

KA5532

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 2 CIRCUIT 8DIP

0

MC33202VDR2

MC33202VDR2

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 2 CIRCUIT 8SOIC

0

TCA0372DM2ELG

TCA0372DM2ELG

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 2 CIRCUIT 16SOEIAJ

0

FHP3230IMU8

FHP3230IMU8

Sanyo Semiconductor/ON Semiconductor

IC OPAMP VFB 2 CIRCUIT 8MSOP

0

NE5532NG

NE5532NG

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 2 CIRCUIT 8DIP

0

SC358NG

SC358NG

Sanyo Semiconductor/ON Semiconductor

IC OPAMP 8DIP

0

TCA0372DW

TCA0372DW

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 2 CIRCUIT 16SOIC

0

MC3303PG

MC3303PG

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 4 CIRCUIT 14DIP

0

SA5532N

SA5532N

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 2 CIRCUIT 8DIP

0

MC33071APG

MC33071APG

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 1 CIRCUIT 8DIP

0

LM224DTBR2

LM224DTBR2

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 4 CIRCUIT 14TSSOP

0

MC33272AP

MC33272AP

Sanyo Semiconductor/ON Semiconductor

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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