Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
TLC074CPWPG4

TLC074CPWPG4

Texas Instruments

IC OPAMP GP 4 CIRCUIT 20HTSSOP

0

TLV341IDBVT

TLV341IDBVT

Texas Instruments

IC GP OPAMP 1 CIRCUIT SOT23-6

17996

TLV2473CN

TLV2473CN

Texas Instruments

OPERATIONAL AMPLIFIER

5400

TL071MLB

TL071MLB

Texas Instruments

OPERATIONAL AMPLIFIER

5974

LM6154BCM/NOPB

LM6154BCM/NOPB

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14SOIC

1229

TLC085CN

TLC085CN

Texas Instruments

TLC085 QUAD 16V, 10MHZ, HIGH OUT

3200

OPA2674IDRG4

OPA2674IDRG4

Texas Instruments

IC OPAMP CFA 2 CIRCUIT 8SOIC

0

LMC6034IMX/NOPB

LMC6034IMX/NOPB

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14SOIC

8349

OPA2211AIDDAR

OPA2211AIDDAR

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOPWRPAD

2710

OPA322SAIDBVT

OPA322SAIDBVT

Texas Instruments

IC OPAMP GP 1 CIRCUIT SOT23-5

994

TLC2272MDRG4

TLC2272MDRG4

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

0

OPA177FP

OPA177FP

Texas Instruments

IC OPAMP GP 1 CIRCUIT 8DIP

465

VCA822IDGST

VCA822IDGST

Texas Instruments

WIDEBAND, GREATER THAN 40DB GAIN

12089

THS4521IDGKT

THS4521IDGKT

Texas Instruments

IC OPAMP DIFF 1 CIRCUIT 8VSSOP

343410000

TLV2470CDBVR

TLV2470CDBVR

Texas Instruments

TLV2470 SINGLE LOW-POWER RAIL-TO

0

OPA374AIDBVTG4

OPA374AIDBVTG4

Texas Instruments

IC OPAMP GP 1 CIRCUIT SOT23-5

0

OPA192IDGKT

OPA192IDGKT

Texas Instruments

IC OPAMP GP 1 CIRCUIT 8VSSOP

16410000

LMP7718MAX/NOPB

LMP7718MAX/NOPB

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

0

LMV712Q1MMX/NOPB

LMV712Q1MMX/NOPB

Texas Instruments

LMV712-N-Q1 AUTOMOTIVE, DUAL, LO

6930

INA819IDGKT

INA819IDGKT

Texas Instruments

IC INST AMP 1 CIRCUIT 8VSSOP

1964

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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