Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
TL074IDT

TL074IDT

STMicroelectronics

IC OPAMP JFET 4 CIRCUIT 14SO

2464

TSV6290AICT

TSV6290AICT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SC70-6

1333

TL084IDT

TL084IDT

STMicroelectronics

IC OPAMP JFET 4 CIRCUIT 14SO

40

TL061ACDT

TL061ACDT

STMicroelectronics

IC OPAMP JFET 1 CIRCUIT 8SO

4790

TS462CPT

TS462CPT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8TSSOP

3960

TS9224IYPT

TS9224IYPT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14TSSOP

801

TSV855IPT

TSV855IPT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 16TSSOP

0

TSV631ILT

TSV631ILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

3038

TSV991IYDT

TSV991IYDT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT 8SO

0

TSV622IDT

TSV622IDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

4422

TS617IDT

TS617IDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 14SO

0

TL062IDT

TL062IDT

STMicroelectronics

IC OPAMP JFET 2 CIRCUIT 8SO

2464

TSV6390AILT

TSV6390AILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-6

0

TSX923IST

TSX923IST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 10MINISO

3885

TS972IYPT

TS972IYPT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8TSSOP

0

TSV852IYDT

TSV852IYDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

0

TSV851AIYLT

TSV851AIYLT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

0

TSV6395AIPT

TSV6395AIPT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 16TSSOP

0

TSV732IST

TSV732IST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

0

MC33079YDT

MC33079YDT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

23872

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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