Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
LM2904QS-13

LM2904QS-13

Zetex Semiconductors (Diodes Inc.)

IC OPAMP GP 2 CIRCUIT 8SO

34

LM2902AT14-13

LM2902AT14-13

Zetex Semiconductors (Diodes Inc.)

IC OPAMP GP 4 CIRCUIT 14TSSOP

0

AZV358MTR-G1

AZV358MTR-G1

Zetex Semiconductors (Diodes Inc.)

IC OPAMP GP 2 CIRCUIT 8SOIC

0

AZV832MTR-G1

AZV832MTR-G1

Zetex Semiconductors (Diodes Inc.)

IC OPAMP GP 2 CIRCUIT 8SOIC

10

TLC27L1IS-13

TLC27L1IS-13

Zetex Semiconductors (Diodes Inc.)

IC CMOS 1 CIRCUIT 8SO

4011

AZ4580MTR-E1

AZ4580MTR-E1

Zetex Semiconductors (Diodes Inc.)

IC OPAMP GP 2 CIRCUIT 8SOIC

4017

AZ4558CP-E1

AZ4558CP-E1

Zetex Semiconductors (Diodes Inc.)

IC OPAMP GP 2 CIRCUIT 8DIP

0

AS358GTR-G1

AS358GTR-G1

Zetex Semiconductors (Diodes Inc.)

IC OPAMP GP 2 CIRCUIT 8TSSOP

0

TLC27L1BIS-13

TLC27L1BIS-13

Zetex Semiconductors (Diodes Inc.)

IC CMOS 1 CIRCUIT 8SO

1535

TLC27L1AIS-13

TLC27L1AIS-13

Zetex Semiconductors (Diodes Inc.)

IC CMOS 1 CIRCUIT 8SO

90

TL082SG-13

TL082SG-13

Zetex Semiconductors (Diodes Inc.)

IC OPAMP JFET 2 CIRCUIT 8SOP

415210000

AS2333FGE-7

AS2333FGE-7

Zetex Semiconductors (Diodes Inc.)

OPAMP GENERAL PURPOSE U-DFN3030-

300015000

AZ4580GTR-G1

AZ4580GTR-G1

Zetex Semiconductors (Diodes Inc.)

IC OPAMP GP 2 CIRCUIT 8TSSOP

0

TLV271CS-13

TLV271CS-13

Zetex Semiconductors (Diodes Inc.)

IC CMOS 1 CIRCUIT 8SO

25812500

AP4306BUKTR-G1

AP4306BUKTR-G1

Zetex Semiconductors (Diodes Inc.)

IC CURR SENSE 1 CIRCUIT SOT23-6

0

TLC271BCS-13

TLC271BCS-13

Zetex Semiconductors (Diodes Inc.)

IC CMOS 1 CIRCUIT 8SO

77742500

AZ4558CMTR-G1

AZ4558CMTR-G1

Zetex Semiconductors (Diodes Inc.)

IC OPAMP GP 2 CIRCUIT 8SOIC

957120000

TLC271CS-13

TLC271CS-13

Zetex Semiconductors (Diodes Inc.)

IC CMOS 1 CIRCUIT 8SO

232240000

LM2902AQT14-13

LM2902AQT14-13

Zetex Semiconductors (Diodes Inc.)

IC OPAMP GP 4 CIRCUIT 14TSSOP

358

AP4305KTR-G1

AP4305KTR-G1

Zetex Semiconductors (Diodes Inc.)

IC CURR SENSE 1 CIRCUIT SOT23-6

2990

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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