Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
TSV358IPT

TSV358IPT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8TSSOP

3410

TSV914AIYDT

TSV914AIYDT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

0

TS944IDT

TS944IDT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

0

TSV994IDT

TSV994IDT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

4084

TSV620AICT

TSV620AICT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SC70-6

3075

TSB7192IYDT

TSB7192IYDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

2495

TS461CDT

TS461CDT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT 8SO

5868

TS931ILT

TS931ILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

984

TS274ACDT

TS274ACDT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

18

TS1851ILT

TS1851ILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

990

TS27L2AID

TS27L2AID

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

0

TSZ124IQ4T

TSZ124IQ4T

STMicroelectronics

IC OPAMP ZERO-DRIFT 4 CIRC 16QFN

0

CS30CL

CS30CL

STMicroelectronics

IC CURR SENSE 1 CIRCUIT SOT23-5

5141

TSH300IDT

TSH300IDT

STMicroelectronics

IC OPAMP VFB 1 CIRCUIT 8SO

0

TSV792IST

TSV792IST

STMicroelectronics

HIGH BANDWIDTH (50MHZ) LOW OFFSE

857

TS924AIYPT

TS924AIYPT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14TSSOP

3099

TSV912AIDT

TSV912AIDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

2502

TSH70CD

TSH70CD

STMicroelectronics

IC OPAMP GP 1 CIRCUIT 8SO

0

TSV611ICT

TSV611ICT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SC70-5

4171

TS462CST

TS462CST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

4309

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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