Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
MC33074DTBG

MC33074DTBG

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 4 CIRCUIT 14TSSOP

0

NE5534NG

NE5534NG

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 1 CIRCUIT 8DIP

0

MC33201PG

MC33201PG

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 1 CIRCUIT 8DIP

0

MC33503SNT1G

MC33503SNT1G

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 1 CIRCUIT 5TSOP

0

NE5517AN

NE5517AN

Sanyo Semiconductor/ON Semiconductor

IC OPAMP TRANSCOND 2 CIRC 16DIP

0

MC33204DTBR2

MC33204DTBR2

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 4 CIRCUIT 14TSSOP

0

TCA0372BDP1G

TCA0372BDP1G

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 2 CIRCUIT 8DIP

0

SC2901VDTBR2G

SC2901VDTBR2G

Sanyo Semiconductor/ON Semiconductor

IC OPAMP 14TSSOP

0

TCA0372DP1

TCA0372DP1

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 2 CIRCUIT 8DIP

0

SC2902VDR2G

SC2902VDR2G

Sanyo Semiconductor/ON Semiconductor

IC OPAMP 14SOIC

0

MC33202VPG

MC33202VPG

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 2 CIRCUIT 8DIP

0

MC33074DTBR2

MC33074DTBR2

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 4 CIRCUIT 14TSSOP

0

SC224NG

SC224NG

Sanyo Semiconductor/ON Semiconductor

IC OP AMP GP QUAD 14DIP

0

LM2904ADMG

LM2904ADMG

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 2 CIRCUIT MICRO8

0

NE5532DX

NE5532DX

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 2 CIRCUIT 8SOIC

0

LM2904VNG

LM2904VNG

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 2 CIRCUIT 8DIP

0

FHP3130IM8

FHP3130IM8

Sanyo Semiconductor/ON Semiconductor

IC OPAMP VFB 1 CIRCUIT 8SOIC

0

LM2902DTB

LM2902DTB

Sanyo Semiconductor/ON Semiconductor

IC OPAMP GP 4 CIRCUIT 14TSSOP

0

SC224DTBR2G

SC224DTBR2G

Sanyo Semiconductor/ON Semiconductor

IC OPAMP 14TSSOP

0

NE5532N

NE5532N

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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