Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
TSV6191ILT

TSV6191ILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

0

TSC888BILT

TSC888BILT

STMicroelectronics

IC CURR SENSE 1 CIRCUIT SOT23-5

2119

TS1872AIYDT

TS1872AIYDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

0

TSC1031IPT

TSC1031IPT

STMicroelectronics

IC CURR SENSE 1 CIRCUIT 8TSSOP

2316

TSV358AIYPT

TSV358AIYPT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8TSSOP

0

TSB572IDT

TSB572IDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

2512

TSX9291ILT

TSX9291ILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

0

TSV632IQ2T

TSV632IQ2T

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8DFN

6202

TSV358AIST

TSV358AIST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

0

TL084CDT

TL084CDT

STMicroelectronics

IC OPAMP JFET 4 CIRCUIT 14SO

15863

TS954IYPT

TS954IYPT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14TSSOP

0

TSH111ID

TSH111ID

STMicroelectronics

IC OPAMP CFA 1 CIRCUIT 8SO

0

TS924AIDT

TS924AIDT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

0

TSV630AICT

TSV630AICT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SC70-6

960

TSV6395IPT

TSV6395IPT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 16TSSOP

0

TSZ121ILT

TSZ121ILT

STMicroelectronics

IC OPAMP ZER-DRIFT 1CIRC SOT23-5

0

TSV6191ICT

TSV6191ICT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SC70-5

0

TSB7191AILT

TSB7191AILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

2879

TL084AIDT

TL084AIDT

STMicroelectronics

IC OPAMP JFET 4 CIRCUIT 14SO

2592

TS914AID

TS914AID

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

506

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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