Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
MAX4236BEUA+T

MAX4236BEUA+T

Maxim Integrated

IC OPAMP GP 1 CIRCUIT 8UMAX

17500

MAX44241AUK+T

MAX44241AUK+T

Maxim Integrated

IC OPAMP GP 1 CIRCUIT SOT5

70000

MAX406AESA+

MAX406AESA+

Maxim Integrated

IC OPAMP GP 1 CIRCUIT 8SOIC

851300

MAX410ESA+T

MAX410ESA+T

Maxim Integrated

IC OPAMP GP 1 CIRCUIT 8SOIC

619

MAX4163ESA+T

MAX4163ESA+T

Maxim Integrated

IC OPAMP GP 2 CIRCUIT 8SOIC

7084

MAX4416EUA+T

MAX4416EUA+T

Maxim Integrated

IC OPAMP VFB 2 CIRCUIT 8UMAX

7500

MAX34406WETG+T

MAX34406WETG+T

Maxim Integrated

IC CURR SENSE 4 CIRCUIT 24QFN

0

MAX4376HASA+T

MAX4376HASA+T

Maxim Integrated

IC CURR SENSE 1 CIRCUIT 8SOIC

0

MAX40108ANT+

MAX40108ANT+

Maxim Integrated

1V - 3.6V LOW VOLTAGE PRECISION

653

MAX4326ESA+T

MAX4326ESA+T

Maxim Integrated

IC OPAMP GP 2 CIRCUIT 8SOIC

0

MAX4173TESA+T

MAX4173TESA+T

Maxim Integrated

IC CURR SENSE 1 CIRCUIT 8SOIC

0

MAX4403ASD+

MAX4403ASD+

Maxim Integrated

IC OPAMP GP 4 CIRCUIT 14SOIC

20614750

ICL7612BCSA+T

ICL7612BCSA+T

Maxim Integrated

IC OPAMP GP 1 CIRCUIT 8SOIC

0

MAX4019ESD+T

MAX4019ESD+T

Maxim Integrated

IC BUFFER 3 CIRCUIT 14SOIC

0

MAX4475ASA+

MAX4475ASA+

Maxim Integrated

IC OPAMP GP 1 CIRCUIT 8SOIC

67500

MAX4481AXT+T

MAX4481AXT+T

Maxim Integrated

IC OPAMP GP 1 CIRCUIT SC70-6

469710000

MAX4490AUK+T

MAX4490AUK+T

Maxim Integrated

IC OPAMP GP 1 CIRCUIT SOT23-5

2552

MAX34406TETG+T

MAX34406TETG+T

Maxim Integrated

IC CURR SENSE 4 CIRCUIT 24QFN

0

MAX407ESA+

MAX407ESA+

Maxim Integrated

IC OPAMP GP 2 CIRCUIT 8SOIC

10981100

MAX4017EUA+T

MAX4017EUA+T

Maxim Integrated

IC BUFFER 2 CIRCUIT 8UMAX

2500

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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