Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
LM258YDT

LM258YDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

4980

TL084BIYDT

TL084BIYDT

STMicroelectronics

IC OPAMP JFET INPUT 14SO

0

TS931IDT

TS931IDT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT 8SO

0

TSB712IYST

TSB712IYST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

2992

TSX562IYST

TSX562IYST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

0

TSX9292IST

TSX9292IST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

3977

TSV992AIYDT

TSV992AIYDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

1455

TSX711AILT

TSX711AILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

3323

TS512AIYDT

TS512AIYDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

0

TSV854IDT

TSV854IDT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

0

MC4558CPT

MC4558CPT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8TSSOP

3662

TS507CDT

TS507CDT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT 8SO

33

TSB711IYLT

TSB711IYLT

STMicroelectronics

PRECISION, 6 MHZ, RR IO, 36 V BI

1000

TS952IYDT

TS952IYDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

0

TSC103IPT

TSC103IPT

STMicroelectronics

IC CURR SENSE 1 CIRCUIT 8TSSOP

28147

TSU114IPT

TSU114IPT

STMicroelectronics

IC CMOS 4 CIRCUIT 900NA 14TSSOP

968

TSV6390ICT

TSV6390ICT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SC70-6

0

TSC101CIYLT

TSC101CIYLT

STMicroelectronics

IC CURR SENSE 1 CIRCUIT SOT23-5

7618

LMV824IYDT

LMV824IYDT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

0

TSX561ILT

TSX561ILT

STMicroelectronics

IC CMOS 1 CIRCUIT SOT23-5

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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