Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
LMV612MAX/NOPB

LMV612MAX/NOPB

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

2798

TLV9302IDR

TLV9302IDR

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

1594

RC4580IPW

RC4580IPW

Texas Instruments

IC AUDIO 2 CIRCUIT 8TSSOP

1454

LM7171AIM/NOPB

LM7171AIM/NOPB

Texas Instruments

IC OPAMP VFB 1 CIRCUIT 8SOIC

490

LM2902KAVQPWR

LM2902KAVQPWR

Texas Instruments

LM2902KAV QUADRUPLE OPERATIONAL

0

SA5532AP

SA5532AP

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8DIP

711

TLV2442ID

TLV2442ID

Texas Instruments

TLV2442 ADVANCED LINCMOS RAIL-TO

3350

TLC2272IPG4

TLC2272IPG4

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8DIP

0

LM6144BIM

LM6144BIM

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14SOIC

72

LMV344MAX/NOPB

LMV344MAX/NOPB

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14SOIC

1601

TLC25M2CPWLE

TLC25M2CPWLE

Texas Instruments

OPERATIONAL AMPLIFIER

3500

TL064IDRG4

TL064IDRG4

Texas Instruments

IC OPAMP JFET 4 CIRCUIT 14SOIC

0

TLV2197QDGKRQ1

TLV2197QDGKRQ1

Texas Instruments

AUTOMOTIVE, DUAL CHANNEL, HIGH-V

1303

LM10BH

LM10BH

Texas Instruments

IC OPAMP GP 1 CIRCUIT TO5-8

0

TLV2450AIPE4

TLV2450AIPE4

Texas Instruments

IC GP OPAMP 1 CIRCUIT 8DIP

263

THS4061CDGN

THS4061CDGN

Texas Instruments

THS4061 180-MHZ HIGH OUTPUT DRIV

18949

THS4502IDR

THS4502IDR

Texas Instruments

THS4502 HIGH-SPEED FULLY-DIFFERE

17126

TLV2772AQD

TLV2772AQD

Texas Instruments

IC GP OPAMP 2 CIRCUIT 8SOIC

22972

TLV2341IPWR

TLV2341IPWR

Texas Instruments

OPERATIONAL AMPLIFIER

10000

LM6142AIMX

LM6142AIMX

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

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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