Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
TSV852AIST

TSV852AIST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

0

TSV6291AICT

TSV6291AICT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SC70-5

0

TSV6293IST

TSV6293IST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 10MINISO

0

LMV358IYDT

LMV358IYDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

2856

TSV991IQ2T

TSV991IQ2T

STMicroelectronics

IC OPAMP GP 1 CIRCUIT 8DFN

0

TL082CDT

TL082CDT

STMicroelectronics

IC OPAMP JFET 2 CIRCUIT 8SO

13585

TSB572IQ2T

TSB572IQ2T

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8DFN

547

TSV524IQ4T

TSV524IQ4T

STMicroelectronics

IC CMOS 4 CIRCUIT 16QFN

4837

MC1458IDT

MC1458IDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

412

TSB572IYQ2T

TSB572IYQ2T

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8DFN

0

TSV914IYDT

TSV914IYDT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

0

TSC1031IYDT

TSC1031IYDT

STMicroelectronics

IC CURR SENSE 1 CIRCUIT 8SO

0

TS9511IYLT

TS9511IYLT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

0

TL061IDT

TL061IDT

STMicroelectronics

IC OPAMP JFET 1 CIRCUIT 8SO

2511

TSV6392IST

TSV6392IST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

0

TS951IYLT

TS951IYLT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

555

TS512IDT

TS512IDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

0

TS9222IDT

TS9222IDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

0

TSV914IYPT

TSV914IYPT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14TSSOP

0

TL064IDT

TL064IDT

STMicroelectronics

IC OPAMP JFET 4 CIRCUIT 14SO

809

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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