Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
ALD2736APAL

ALD2736APAL

Advanced Linear Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8DIP

0

ALD1701BSAL

ALD1701BSAL

Advanced Linear Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8SOIC

0

ALD1722SAL

ALD1722SAL

Advanced Linear Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8SOIC

45

ALD1706GSAL

ALD1706GSAL

Advanced Linear Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8SOIC

0

ALD2711ASAL

ALD2711ASAL

Advanced Linear Devices, Inc.

IC OPAMP GP 2 CIRCUIT 8SOIC

0

ALD2726EPBL

ALD2726EPBL

Advanced Linear Devices, Inc.

IC OPAMP GP 2 CIRCUIT 14DIP

0

ALD1706APAL

ALD1706APAL

Advanced Linear Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8DIP

0

ALD1704SAL

ALD1704SAL

Advanced Linear Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8SOIC

0

ALD1706BSAL

ALD1706BSAL

Advanced Linear Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8SOIC

0

ALD2704SAL

ALD2704SAL

Advanced Linear Devices, Inc.

IC OPAMP GP 2 CIRCUIT 8SOIC

0

ALD1712BPAL

ALD1712BPAL

Advanced Linear Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8DIP

0

ALD2711SAL

ALD2711SAL

Advanced Linear Devices, Inc.

IC OPAMP GP 2 CIRCUIT 8SOIC

0

ALD2724PBL

ALD2724PBL

Advanced Linear Devices, Inc.

IC OPAMP GP 2 CIRCUIT 14DIP

0

ALD1736APAL

ALD1736APAL

Advanced Linear Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8DIP

0

ALD2706ASAL

ALD2706ASAL

Advanced Linear Devices, Inc.

IC OPAMP GP 2 CIRCUIT 8SOIC

0

ALD2711BPAL

ALD2711BPAL

Advanced Linear Devices, Inc.

IC OPAMP GP 2 CIRCUIT 8DIP

0

ALD4701BSBL

ALD4701BSBL

Advanced Linear Devices, Inc.

IC OPAMP GP 4 CIRCUIT 14SOIC

0

ALD2732ASAL

ALD2732ASAL

Advanced Linear Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8SOIC

0

ALD2701APAL

ALD2701APAL

Advanced Linear Devices, Inc.

IC OPAMP GP 2 CIRCUIT 8DIP

0

ALD2706PAL

ALD2706PAL

Advanced Linear Devices, Inc.

IC OPAMP GP 2 CIRCUIT 8DIP

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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