Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
TL034IDRG4

TL034IDRG4

Texas Instruments

IC OPAMP JFET 4 CIRCUIT 14SOIC

0

LT1014CNG4

LT1014CNG4

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14DIP

0

OPA338NA/250G4

OPA338NA/250G4

Texas Instruments

IC OPAMP GP 1 CIRCUIT SOT23-5

0

LM224DRG4

LM224DRG4

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14SOIC

491

TSM104WAIPW

TSM104WAIPW

Texas Instruments

IC GP OPAMP 4 CIRCUIT 16TSSOP

5030

TLV2465IN

TLV2465IN

Texas Instruments

TLV2465 QUAD LOW POWER, RAIL-TO-

26316

TLC2652C-14D

TLC2652C-14D

Texas Instruments

OPERATIONAL AMPLIFIER

10450

LMP7711MKX/NOPB

LMP7711MKX/NOPB

Texas Instruments

IC OPAMP GP 1 CIRCUIT TSOT23-6

0

LMV821DCKTE4

LMV821DCKTE4

Texas Instruments

IC GP OPAMP 1 CIRCUIT SC70-5

750

TLC2254AQDR

TLC2254AQDR

Texas Instruments

TLC2254A RAIL-TO-RAIL QUAD OPERA

1260

TLV2454IDR

TLV2454IDR

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14SOIC

12024

LMC6041IM/NOPB

LMC6041IM/NOPB

Texas Instruments

IC OPAMP GP 1 CIRCUIT 8SOIC

252

LMH6622MM/NOPB

LMH6622MM/NOPB

Texas Instruments

IC OPAMP VFB 2 CIRCUIT 8VSSOP

385

TLV2460AIDR

TLV2460AIDR

Texas Instruments

TLV2460A SINGLE, LOW POWER, RAIL

0

INA4181A1QPWRQ1

INA4181A1QPWRQ1

Texas Instruments

IC CURR SENSE 4 CIRCUIT 20TSSOP

0

TLV2462CDRG4

TLV2462CDRG4

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

0

OPA2350EA/2K5

OPA2350EA/2K5

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8VSSOP

7013

TLV9152SIRUGR

TLV9152SIRUGR

Texas Instruments

DUAL 4.5MHZ, 16-V RAIL-TO-RAIL I

2815

TLV2785CPWR

TLV2785CPWR

Texas Instruments

TLV2785 QUAD 1.8V RRIO, 8MHZ AMP

11430

LMH6624MA

LMH6624MA

Texas Instruments

IC OPAMP VFB 1 CIRCUIT 8SOIC

93

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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