Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
TSV852IDT

TSV852IDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

0

LMV824IPT

LMV824IPT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14TSSOP

44515

MC33171DT

MC33171DT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT 8SO

5908

MC33079DT

MC33079DT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

4225

TSU111IQ1T

TSU111IQ1T

STMicroelectronics

IC CMOS 1 CIRCUIT 6DFN

2000

TSV914AIYPT

TSV914AIYPT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14TSSOP

1858

TL084CD

TL084CD

STMicroelectronics

IC OPAMP JFET 4 CIRCUIT 14SO

7204

TSV851AILT

TSV851AILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

0

TSV321RAILT

TSV321RAILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

4639

TS464CPT

TS464CPT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14TSSOP

37998

TS522IDT

TS522IDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

2831

LM324ADT

LM324ADT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

12936

TSV622AIDT

TSV622AIDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

2131

TSV911IYDT

TSV911IYDT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT 8SO

0

TS925AIPT

TS925AIPT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 16TSSOP

0

LMV324IYDT

LMV324IYDT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

4265

TSV620ILT

TSV620ILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-6

39

TSB711AILT

TSB711AILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

2153

TL064ACDT

TL064ACDT

STMicroelectronics

IC OPAMP JFET 4 CIRCUIT 14SO

1041

TSV633IST

TSV633IST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 10MINISO

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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