Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
BA2904SFV-E2

BA2904SFV-E2

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8SSOPB

1366

BA2902SKN-E2

BA2902SKN-E2

ROHM Semiconductor

IC OPAMP GP 4 CIRCUIT 16VQFN

0

BA2904YFVM-MGTR

BA2904YFVM-MGTR

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8MSOP

24

BU7442F-E2

BU7442F-E2

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8SOP

1205

BD7561G-TR

BD7561G-TR

ROHM Semiconductor

IC OPAMP GP 1 CIRCUIT 5SSOP

3000

LMR342FVM-GTR

LMR342FVM-GTR

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8MSOP

2850

BA4558FJ-GE2

BA4558FJ-GE2

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT SOP8J

2348

BA8522RFVM-TR

BA8522RFVM-TR

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8MSOP

415

LM358FVM-GTR

LM358FVM-GTR

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8MSOP

141

BD7562SF-E2

BD7562SF-E2

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8SOP

4275

BU7486FVM-TR

BU7486FVM-TR

ROHM Semiconductor

IC CMOS 2 CIRCUIT 8MSOP

1539

LM324F-GE2

LM324F-GE2

ROHM Semiconductor

IC OPAMP GP 4 CIRCUIT 14SOP

68

BA4580RF-E2

BA4580RF-E2

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8SOP

661

BA4564RFV-E2

BA4564RFV-E2

ROHM Semiconductor

IC OPAMP GP 4 CIRCUIT 14SSOPB

3055

LM2904FVJ-E2

LM2904FVJ-E2

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8TSSOP

2490

LMR324FJ-GE2

LMR324FJ-GE2

ROHM Semiconductor

IC OPAMP GP 4 CIRCUIT 14SOPJ

2490

LM358FVJ-E2

LM358FVJ-E2

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8TSSOP

1591

BA4558YFVM-MGTR

BA4558YFVM-MGTR

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8MSOP

2350

BA4580RFVM-TR

BA4580RFVM-TR

ROHM Semiconductor

IC OPAMP GP 2 CIRCUIT 8MSOP

1757

BU7445SHFV-TR

BU7445SHFV-TR

ROHM Semiconductor

IC OPAMP GP 1 CIRCUIT HVSOF5

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

RFQ BOM Call Skype Email
Top