Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
TSV912AIYDT

TSV912AIYDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

0

TS982IYDWT

TS982IYDWT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

658

LMV324LIDT

LMV324LIDT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

6164

TS1871AILT

TS1871AILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

0

TSV992AIYST

TSV992AIYST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

3389

MC33174DT

MC33174DT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

21192

TSV6191AICT

TSV6191AICT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SC70-5

2498

LMX358IQ2T

LMX358IQ2T

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8DFN

0

TS1854IDT

TS1854IDT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

2490

TSX921ILT

TSX921ILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

1622

TL072BIYDT

TL072BIYDT

STMicroelectronics

IC OPAMP JFET 2 CIRCUIT 8SO

1516

TSX712IDT

TSX712IDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

0

TSC102IDT

TSC102IDT

STMicroelectronics

IC CURR SENSE 1 CIRCUIT 8SO

0

LMV822IST

LMV822IST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

0

TS1874IPT

TS1874IPT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14TSSOP

475

TSU101RILT

TSU101RILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

0

LM258YPT

LM258YPT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8TSSOP

3998

TS27M2CPT

TS27M2CPT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8TSSOP

4754

TSV324AIYPT

TSV324AIYPT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14TSSOP

7573

TSV612AIDT

TSV612AIDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

2228

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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