Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
TSV911AIYDT

TSV911AIYDT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT 8SO

0

TSV321RAIYLT

TSV321RAIYLT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

0

TSV623AIST

TSV623AIST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 10MINISO

0

TSC888CILT

TSC888CILT

STMicroelectronics

IC CURR SENSE 1 CIRCUIT SOT23-5

16348

LM833YDT

LM833YDT

STMicroelectronics

IC AUDIO 2 CIRCUIT 8SO

0

TS321IYLT

TS321IYLT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

0

TSZ181IYLT

TSZ181IYLT

STMicroelectronics

IC OPAMP ZER-DRIFT 1CIRC SOT23-5

2940

LM358AWPT

LM358AWPT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8TSSOP

0

LMV824AIPT

LMV824AIPT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14TSSOP

1053

TSV630ICT

TSV630ICT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SC70-6

9813

TSV991ILT

TSV991ILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

59323

TSX9292IQ2T

TSX9292IQ2T

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8DFN

3965

TSV612IDT

TSV612IDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

2081

OA2ZHA34S

OA2ZHA34S

STMicroelectronics

IC OPAMP ZER-DRIFT 2CIRC 8MINISO

4677

TSU101ILT

TSU101ILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

0

UA741CDT

UA741CDT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT 8SO

1746

TS924ID

TS924ID

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

611

TS274AIDT

TS274AIDT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

435

TSV914AIDT

TSV914AIDT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SOIC

5933

LM258WYDT

LM258WYDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

12025

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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