Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
ISL28130FHZ-T7A

ISL28130FHZ-T7A

Intersil (Renesas Electronics America)

IC OPAMP GP 1 CIRCUIT SOT23-5

6892

ISL28417FVZ-T13

ISL28417FVZ-T13

Intersil (Renesas Electronics America)

IC OPAMP GP 4 CIRCUIT 14TSSOP

0

5962-0625501QHC

5962-0625501QHC

Intersil (Renesas Electronics America)

VIDEO AMPLIFIER

219

EL5451IS

EL5451IS

Intersil (Renesas Electronics America)

IC OPAMP VFB 4 CIRCUIT 14SOIC

114

EL5362IUZ-T7

EL5362IUZ-T7

Intersil (Renesas Electronics America)

IC OPAMP CFA 3 CIRCUIT 16QSOP

0

ISL28110FBZ

ISL28110FBZ

Intersil (Renesas Electronics America)

IC OPAMP JFET 1 CIRCUIT 8SOIC

7954

EL5164ISZ

EL5164ISZ

Intersil (Renesas Electronics America)

IC OPAMP CFA 1 CIRCUIT 8SOIC

0

HA4P5002-5

HA4P5002-5

Intersil (Renesas Electronics America)

IC BUFFER 1 CIRCUIT 20PLCC

31

ISL28108FBZ

ISL28108FBZ

Intersil (Renesas Electronics America)

IC OPAMP GP 1 CIRCUIT 8SOIC

0

ISL28233FBZ-T7

ISL28233FBZ-T7

Intersil (Renesas Electronics America)

IC OPAMP ZERO-DRIFT 2 CIRC 8SOIC

0

EL5173ISZ

EL5173ISZ

Intersil (Renesas Electronics America)

1 FUNC 1 DRIVER BIPOLAR PDSO8

9629

EL5175ISZ

EL5175ISZ

Intersil (Renesas Electronics America)

IC OPAMP DIFF 1 CIRCUIT 8SOIC

1288

5962-8962701PA

5962-8962701PA

Intersil (Renesas Electronics America)

OPERATIONAL AMPLIFIER

334

CA5260AM

CA5260AM

Intersil (Renesas Electronics America)

OPERATIONAL AMPLIFIER

1841

ISL28325FUZ-T7A

ISL28325FUZ-T7A

Intersil (Renesas Electronics America)

IC OPAMP GP 2 CIRCUIT 8MSOP

0

ISL28408FBZ

ISL28408FBZ

Intersil (Renesas Electronics America)

IC OPAMP GP 4 CIRCUIT 14SOIC

0

CA3140M96

CA3140M96

Intersil (Renesas Electronics America)

IC GP OPAMP 1 CIRCUIT 8SOIC

20000

EL5167ICZ-T7A

EL5167ICZ-T7A

Intersil (Renesas Electronics America)

IC OPAMP CFA 1 CIRCUIT SC70-5

302

ISL28430FVZ-T13

ISL28430FVZ-T13

Intersil (Renesas Electronics America)

IC OPAMP GP 4 CIRCUIT 14TSSOP

0

ISL28407FBZ-T7

ISL28407FBZ-T7

Intersil (Renesas Electronics America)

IC OPAMP GP 4 CIRCUIT 14SOIC

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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