Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
TLE2062MLB

TLE2062MLB

Texas Instruments

OPERATIONAL AMPLIFIER

807

OPA838IDBVR

OPA838IDBVR

Texas Instruments

IC OPAMP VFB 1 CIRCUIT SOT23-6

8714

TLC2274MDR

TLC2274MDR

Texas Instruments

TLC2274 QUAD LOW-NOISE RAIL-TO-R

76196

TLE2062AIDR

TLE2062AIDR

Texas Instruments

IC OPAMP JFET 2 CIRCUIT 8SOIC

0

LMC6494AEMX/NOPB

LMC6494AEMX/NOPB

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14SOIC

2400

LM2904DRG3

LM2904DRG3

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

2365

LM6144AIM/NOPB

LM6144AIM/NOPB

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14SOIC

3161

TL3474CPW

TL3474CPW

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14TSSOP

630

INA332AIDGKTG4

INA332AIDGKTG4

Texas Instruments

IC INST AMP 1 CIRCUIT 8VSSOP

0

OPA376AIDRG4

OPA376AIDRG4

Texas Instruments

IC OPAMP GP 1 CIRCUIT 8SOIC

0

TLV2463CDR

TLV2463CDR

Texas Instruments

IC OPAMP GP 2 CIRCUIT 14SOIC

0

LM6152BCM/NOPB

LM6152BCM/NOPB

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

406

LMP8278QMMX/NOPB

LMP8278QMMX/NOPB

Texas Instruments

LMP8278Q-Q1 AEC-Q100, 40V, LOW-/

14000

OPA347UA

OPA347UA

Texas Instruments

IC OPAMP GP 1 CIRCUIT 8SOIC

455

OPA4703EA/2K5

OPA4703EA/2K5

Texas Instruments

OPA4703 QUAD 12V, 1MHZ, RAIL-TO-

23953

TLV2252AID

TLV2252AID

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

328

TLV2772QPWRQ1

TLV2772QPWRQ1

Texas Instruments

TLV2772-Q1 DUAL AUTOMOTIVE 5MHZ

21765

TLC070IDR

TLC070IDR

Texas Instruments

TLC070 SINGLE WIDE-BANDWIDTH HIG

2500

OPA2251UA

OPA2251UA

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

258

OPA627AUE4

OPA627AUE4

Texas Instruments

IC OPAMP GP 1 CIRCUIT 8SOIC

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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