Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
TS1851AILT

TS1851AILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

0

TSC2012IYDT

TSC2012IYDT

STMicroelectronics

HIGH VOLTAGE, PRECISION, BIDIREC

975

LMV820ILT

LMV820ILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-6

0

TSV6392AIST

TSV6392AIST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

0

TSH72CPT

TSH72CPT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8TSSOP

0

LMV822IYST

LMV822IYST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

0

TSV912AIST

TSV912AIST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

4045

TS272ACDT

TS272ACDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

22

TSV630AILT

TSV630AILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-6

2338

TS925IPT

TS925IPT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 16TSSOP

36

LM324DT

LM324DT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

25499

TS931AILT

TS931AILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

100

TS27M4IDT

TS27M4IDT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

50

LM2904WYDT

LM2904WYDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

63387500

LMC6482IDT

LMC6482IDT

STMicroelectronics

IC CMOS 2 CIRCUIT 8SO

3521

TSX562IST

TSX562IST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

0

TSV912IYST

TSV912IYST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

0

TSX711IYLT

TSX711IYLT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

1801

TS27M2IDT

TS27M2IDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

113

TSV854AIDT

TSV854AIDT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

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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