Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
TSV632AIDT

TSV632AIDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

1

TSV6392IDT

TSV6392IDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

0

TSV6390AICT

TSV6390AICT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SC70-6

0

TSV6292AIST

TSV6292AIST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

0

TL084BIPT

TL084BIPT

STMicroelectronics

IC OPAMP JFET 4 CIRCUIT 14TSSOP

0

LMV820AILT

LMV820AILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-6

0

TSV991AIQ1T

TSV991AIQ1T

STMicroelectronics

IC OPAMP GP 1 CIRCUIT 6UDFN

0

LM2902AWYPT

LM2902AWYPT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14TSSOP

37

TS27L4IPT

TS27L4IPT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14TSSOP

2488

TS971IYLT

TS971IYLT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

0

LM201ADT

LM201ADT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT 8SO

892

TS912AIYDT

TS912AIYDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

0

LM358AWDT

LM358AWDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

4617

TSV992IST

TSV992IST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

4000

LM358WDT

LM358WDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

0

TS27L2ACN

TS27L2ACN

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8DIP

0

TS512BIYDT

TS512BIYDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SOIC

2451

TSZ124IPT

TSZ124IPT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14TSSOP

0

TSX922IQ2T

TSX922IQ2T

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8DFN

990

TS951ILT

TS951ILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

7330

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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