Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
THS4505DGKG4

THS4505DGKG4

Texas Instruments

IC OPAMP DIFF 1 CIRCUIT 8VSSOP

0

TLC2272QPWR

TLC2272QPWR

Texas Instruments

IC GP OPAMP 2 CIRCUIT 8TSSOP

1876

TLC085AIN

TLC085AIN

Texas Instruments

TLC085A QUAD 16V, 10MHZ, IMPROVE

4822

INA2126EA/250G4

INA2126EA/250G4

Texas Instruments

IC INST AMP 2 CIRCUIT 16SSOP

0

LMH6704MF/NOPB

LMH6704MF/NOPB

Texas Instruments

IC BUFFER 1 CIRCUIT SOT23-6

1265

OPA4202ID

OPA4202ID

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14SOIC

895

TLC2272AMDG4

TLC2272AMDG4

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

383

INA827AIDGKR

INA827AIDGKR

Texas Instruments

IC INST AMP 1 CIRCUIT 8VSSOP

1593

OPA333AIDBVT

OPA333AIDBVT

Texas Instruments

IC OPAMP ZER-DRIFT 1CIRC SOT23-5

371410000

TLV2780AIDR

TLV2780AIDR

Texas Instruments

OPERATIONAL AMPLIFIER

4353

OPA364IDR

OPA364IDR

Texas Instruments

IC OPAMP GP 1 CIRCUIT 8SOIC

0

OPA2625IDGSR

OPA2625IDGSR

Texas Instruments

IC OPAMP GP 2 CIRCUIT 10VSSOP

0

OPA244UA/2K5

OPA244UA/2K5

Texas Instruments

IC OPAMP GP 1 CIRCUIT 8SOIC

2102

TLC27L4BCNS

TLC27L4BCNS

Texas Instruments

IC GP OPAMP 4 CIRCUIT 14SOP

9400

LMV796MFX/NOPB

LMV796MFX/NOPB

Texas Instruments

IC OPAMP GP 1 CIRCUIT SOT23-5

2841

TL082IDR

TL082IDR

Texas Instruments

TL082 DUAL HIGH SLEW RATE JFET-I

60199

LM4250CN/NOPB

LM4250CN/NOPB

Texas Instruments

IC GP OPAMP 1 CIRCUIT 8DIP

0

TLE2024IDW

TLE2024IDW

Texas Instruments

IC OPAMP GP 4 CIRCUIT 16SOIC

297

TLV2252QDRQ1

TLV2252QDRQ1

Texas Instruments

TLV2252-Q1 AUTOMOTIVE, ADVANCED

4241

LMV831MG/NOPB

LMV831MG/NOPB

Texas Instruments

IC OPAMP GP 1 CIRCUIT SC70-5

930

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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