Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
TL061CP3

TL061CP3

Texas Instruments

OPERATIONAL AMPLIFIER

0

LM8261M5

LM8261M5

Texas Instruments

IC OPAMP GP 1 CIRCUIT SOT23-5

1298

TL082CP/NOPB

TL082CP/NOPB

Texas Instruments

IC OPAMP JFET 2 CIRCUIT 8DIP

729880

OPA820IDBVR

OPA820IDBVR

Texas Instruments

IC OPAMP VFB 1 CIRCUIT SOT23-5

2270

INA180B3IDBVR

INA180B3IDBVR

Texas Instruments

IC CURR SENSE 1 CIRCUIT SOT23-5

1083

LMP7701MA/NOPB

LMP7701MA/NOPB

Texas Instruments

IC OPAMP GP 1 CIRCUIT 8SOIC

221

THS4271DRBR

THS4271DRBR

Texas Instruments

IC VOLTAGE FEEDBACK 1 CIRC 8SON

26504

OPA344UA

OPA344UA

Texas Instruments

IC OPAMP GP 1 CIRCUIT 8SOIC

4096

LPV802DGKT

LPV802DGKT

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8VSSOP

28

LMC6442IMX/NOPB

LMC6442IMX/NOPB

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

1343

LM6171BIMX/NOPB

LM6171BIMX/NOPB

Texas Instruments

IC OPAMP VFB 1 CIRCUIT 8SOIC

3501

TLE2074ACDW

TLE2074ACDW

Texas Instruments

IC OPAMP JFET 4 CIRCUIT 16SOIC

65

LMH6724MAX/NOPB

LMH6724MAX/NOPB

Texas Instruments

IC OPAMP CFA 2 CIRCUIT 8SOIC

2523

TLV4111ID

TLV4111ID

Texas Instruments

IC OPAMP GP 1 CIRCUIT 8SOIC

335

TLV2711CDBVT

TLV2711CDBVT

Texas Instruments

IC OPAMP GP 1 CIRCUIT SOT23-5

1347

LMV842MMX/NOPB

LMV842MMX/NOPB

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8VSSOP

10191

LMP2234BMAX/NOPB

LMP2234BMAX/NOPB

Texas Instruments

LMP2234 QUAD MICROPOWER, 1.6V, P

6775

OPA325IDBVT

OPA325IDBVT

Texas Instruments

IC CMOS 1 CIRCUIT SOT23-5

332

TL062BCDG4

TL062BCDG4

Texas Instruments

IC OPAMP JFET 2 CIRCUIT 8SOIC

0

OPA4209AIPWR

OPA4209AIPWR

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14TSSOP

12212

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