Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
LM224APT

LM224APT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14TSSOP

10106

TSU102IST

TSU102IST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

3757

TSV853AIST

TSV853AIST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 10MINISO

0

TSH330IDT

TSH330IDT

STMicroelectronics

IC OPAMP CFA 1 CIRCUIT 8SO

0

TSX634AIPT

TSX634AIPT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14TSSOP

2468

TS982IDWT

TS982IDWT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

0

TSB7192AIDT

TSB7192AIDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SOIC

1974

TS321ILT

TS321ILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

17584

TSV621AILT

TSV621AILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

1591

TSV992IYDT

TSV992IYDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

844

TS512AIDT

TS512AIDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

0

OA1MPA22C

OA1MPA22C

STMicroelectronics

IC CMOS 1 CIRCUIT SC70-5

0

TSV911ILT

TSV911ILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

0

TSV6291AILT

TSV6291AILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

3000

TS944AIDT

TS944AIDT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

0

TSZ181IQ1T

TSZ181IQ1T

STMicroelectronics

IC OPAMP ZERO-DRIFT 1 CIRC 6DFN

0

TS9511RIYLT

TS9511RIYLT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

1450

TSZ182IQ2T

TSZ182IQ2T

STMicroelectronics

IC OPAMP ZERO-DRIFT 2 CIRC 8DFN

1538

TS921IDT

TS921IDT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT 8SO

64

TSV911IDT

TSV911IDT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT 8SO

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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