Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
HA2-5102-5

HA2-5102-5

Rochester Electronics

OPERATIONAL AMPLIFIER

7952

LM107H/S

LM107H/S

Rochester Electronics

OPERATIONAL AMPLIFIER

113

CA3080AE

CA3080AE

Rochester Electronics

OPERATIONAL AMPLIFIER

7156

CLC400A/BPA

CLC400A/BPA

Rochester Electronics

DUAL MARKED (5962-8997001PA)

715

LM108AL

LM108AL

Rochester Electronics

LM108AL

1734

LM110J/883

LM110J/883

Rochester Electronics

DUAL MARKED (5962-8760601CA)

424

HA4-5114/883

HA4-5114/883

Rochester Electronics

DUAL MARKED (5962-89634012A)

587

OP15GZ

OP15GZ

Rochester Electronics

OPERATIONAL AMPLIFIER

10

CA3130T

CA3130T

Rochester Electronics

CA3130 - OPERATIONAL AMPLIFIER,

6

CLC502A/BPA

CLC502A/BPA

Rochester Electronics

DUAL MARKED (5962-9174301MPA)

1816

LM110J-8/883

LM110J-8/883

Rochester Electronics

DUAL MARKED (5962-8760601PA)

1610

HA1-5114/883

HA1-5114/883

Rochester Electronics

DUAL MARKED (5962-8963401CA)

592

LPC660AMJ/883

LPC660AMJ/883

Rochester Electronics

DUAL MARKED (5962-9209302MCA)

632

LM759MH

LM759MH

Rochester Electronics

OPERATIONAL AMPLIFIER

1956

CLC428A/BPA

CLC428A/BPA

Rochester Electronics

DUAL MARKED (5962-9470801MPA)

61

CA3160T

CA3160T

Rochester Electronics

OPERATIONAL AMPLIFIER

64

LM108H

LM108H

Rochester Electronics

OPERATIONAL AMPLIFIER, 1 FUNC, 3

0

CA3080M

CA3080M

Rochester Electronics

OPERATIONAL AMPLIFIER

7764

LM110H

LM110H

Rochester Electronics

BUFFER AMPLIFIER, 1 FUNC, BIPOLA

895

LM143H/883

LM143H/883

Rochester Electronics

DUAL MARKED (7800303XA)

690

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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