Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
ALD1701PAL

ALD1701PAL

Advanced Linear Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8DIP

0

ALD1722GSAL

ALD1722GSAL

Advanced Linear Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8SOIC

0

ALD1701BPAL

ALD1701BPAL

Advanced Linear Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8DIP

0

ALD2722PBL

ALD2722PBL

Advanced Linear Devices, Inc.

IC OPAMP GP 2 CIRCUIT 14DIP

0

ALD2706SAL

ALD2706SAL

Advanced Linear Devices, Inc.

IC OPAMP GP 2 CIRCUIT 8SOIC

0

ALD4706BSBL

ALD4706BSBL

Advanced Linear Devices, Inc.

IC OPAMP GP 4 CIRCUIT 14SOIC

0

ALD2702APAL

ALD2702APAL

Advanced Linear Devices, Inc.

IC OPAMP GP 2 CIRCUIT 8DIP

0

ALD4704APBL

ALD4704APBL

Advanced Linear Devices, Inc.

IC OPAMP GP 4 CIRCUIT 14DIP

0

ALD2704APAL

ALD2704APAL

Advanced Linear Devices, Inc.

IC OPAMP GP 2 CIRCUIT 8DIP

0

ALD1712ASAL

ALD1712ASAL

Advanced Linear Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8SOIC

0

ALD1732PAL

ALD1732PAL

Advanced Linear Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8DIP

0

ALD1726GPAL

ALD1726GPAL

Advanced Linear Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8DIP

0

ALD2704BSAL

ALD2704BSAL

Advanced Linear Devices, Inc.

IC OPAMP GP 2 CIRCUIT 8SOIC

0

ALD1721SAL

ALD1721SAL

Advanced Linear Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8SOIC

0

ALD2732SAL

ALD2732SAL

Advanced Linear Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8SOIC

0

ALD2731PAL

ALD2731PAL

Advanced Linear Devices, Inc.

IC OPAMP GP 2 CIRCUIT 8DIP

0

ALD1706ASAL

ALD1706ASAL

Advanced Linear Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8SOIC

29

ALD1721EPAL

ALD1721EPAL

Advanced Linear Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8DIP

0

ALD2701PAL

ALD2701PAL

Advanced Linear Devices, Inc.

IC OPAMP GP 2 CIRCUIT 8DIP

0

ALD1702BPAL

ALD1702BPAL

Advanced Linear Devices, Inc.

IC OPAMP GP 1 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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