Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
TSC2011IDT

TSC2011IDT

STMicroelectronics

IC CURR SENSE 1 CIRCUIT 8SO

2413

TS922AIYDT

TS922AIYDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

136

TSZ182IDT

TSZ182IDT

STMicroelectronics

IC OPAMP ZERO-DRIFT 2 CIRC 8SOIC

17513

TSV622AIST

TSV622AIST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

3457

TSC2011IYDT

TSC2011IYDT

STMicroelectronics

HIGH VOLTAGE, PRECISION, BIDIREC

2500

TSU101ICT

TSU101ICT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SC70-5

2880

TS271ACDT

TS271ACDT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT 8SO

0

TSV6290ICT

TSV6290ICT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SC70-6

0

LMV358IYPT

LMV358IYPT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8TSSOP

0

TSV358AIDT

TSV358AIDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

973

TSB7192IYST

TSB7192IYST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

2975

TSV6391AILT

TSV6391AILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

1274

TSX7192IST

TSX7192IST

STMicroelectronics

IC OPAMP GP RRIO 8MINISO

0

TSV6292IST

TSV6292IST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

0

TSV622IST

TSV622IST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

3750

TSC1031IDT

TSC1031IDT

STMicroelectronics

IC CURR SENSE 1 CIRCUIT 8SO

713

TS1874IYDT

TS1874IYDT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

699

TSU104IQ4T

TSU104IQ4T

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 16QFN

3725

TSV6393IST

TSV6393IST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 10MINISO

0

LM2902DT

LM2902DT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

162

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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