Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
TLV2621IDR

TLV2621IDR

Texas Instruments

TLV2621 800 UA/CH, 11MHZ, RRO, L

2300

TLV2313QDRQ1

TLV2313QDRQ1

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

2266

OPA2364AIDGKTG4

OPA2364AIDGKTG4

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8VSSOP

0

LM741H/NOPB

LM741H/NOPB

Texas Instruments

IC OPAMP GP 1 CIRCUIT TO99-8

860

THS4032IDGN

THS4032IDGN

Texas Instruments

THS4032 100-MHZ LOW NOISE VOLTAG

27899

LMH6629MF/NOPB

LMH6629MF/NOPB

Texas Instruments

IC OPAMP VFB 1 CIRCUIT SOT23-5

0

THS4012CD

THS4012CD

Texas Instruments

IC OPAMP VFB 2 CIRCUIT 8SOIC

5319975

OPA2375IDDFR

OPA2375IDDFR

Texas Instruments

LOW BROADBAND NOISE, 10-MHZ, 500

2823

OPA2333AIDRBT

OPA2333AIDRBT

Texas Instruments

IC OPAMP ZERO-DRIFT 2 CIRC 8SON

884

LM7322QMAX/NOPB

LM7322QMAX/NOPB

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

0

OPA128JM

OPA128JM

Texas Instruments

OPERATIONAL AMPLIFIER

6759

5962-87710022A

5962-87710022A

Texas Instruments

LM158A DUAL GENERAL PURPOSE BIPO

20

LMC6041IN/NOPB

LMC6041IN/NOPB

Texas Instruments

IC OPAMP GP 1 CIRCUIT 8DIP

77910000

TLC274ACNE4

TLC274ACNE4

Texas Instruments

TLC274A LINCMOS IMPROVED OFFSET

0

PGA280AIPWR

PGA280AIPWR

Texas Instruments

IC OPAMP PGA 1 CIRCUIT 24TSSOP

2889

INA331IDGKR

INA331IDGKR

Texas Instruments

IC INST AMP 1 CIRCUIT 8VSSOP

6912

TLE2074AIN

TLE2074AIN

Texas Instruments

IC OPAMP JFET 4 CIRCUIT 14DIP

84

RC4558IDGKR

RC4558IDGKR

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8VSSOP

236

LMV641MAE/NOPB

LMV641MAE/NOPB

Texas Instruments

IC OPAMP GP 1 CIRCUIT 8SOIC

282

TLE2072AIP

TLE2072AIP

Texas Instruments

IC OPAMP JFET 2 CIRCUIT 8DIP

63

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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