Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
MAX4238AUT#TG16

MAX4238AUT#TG16

Analog Devices, Inc.

IC GP OPAMP 1 CIRCUIT SOT23-6

0

AD627BRZ-R7

AD627BRZ-R7

Analog Devices, Inc.

IC INST AMP 1 CIRCUIT 8SOIC

4268

LMC6482AIN

LMC6482AIN

Texas Instruments

IC GP OPAMP 2 CIRCUIT 8DIP

0

LTC2054HVIS5#TRMPBF

LTC2054HVIS5#TRMPBF

Analog Devices, Inc.

IC OPAMP ZER-DRIFT 1CIR TSOT23-5

1349

TLV2170IDGKT

TLV2170IDGKT

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8VSSOP

556

AD8538ARZ-REEL7

AD8538ARZ-REEL7

Analog Devices, Inc.

IC OPAMP ZERO-DRIFT 1 CIRC 8SOIC

0

5962-9460205QPA

5962-9460205QPA

Texas Instruments

TLE2072AM JFET-INPUT HIGH SPEED

769

TLV2785CD

TLV2785CD

Texas Instruments

OPERATIONAL AMPLIFIER

520

ADA4891-2ARMZ-RL

ADA4891-2ARMZ-RL

Analog Devices, Inc.

IC OPAMP GP 2 CIRCUIT 8MSOP

0

ISL28158FBZ

ISL28158FBZ

Intersil (Renesas Electronics America)

OPERATIONAL AMPLIFIER

334

TLV2402IDGKRG4

TLV2402IDGKRG4

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8VSSOP

0

MAX44246ASA+

MAX44246ASA+

Maxim Integrated

IC OPAMP GP 2 CIRCUIT 8SOIC

423

TLV341AIDCKT

TLV341AIDCKT

Texas Instruments

IC OPAMP GP 1 CIRCUIT SC70-6

505

AD8620AR-REEL7

AD8620AR-REEL7

Analog Devices, Inc.

IC OPAMP JFET 2 CIRCUIT 8SOIC

806

HFA1305IB

HFA1305IB

IC CFA 3 CIRCUIT 14SOIC

124

LTC6247CMS#TRPBF

LTC6247CMS#TRPBF

Analog Devices, Inc.

IC OPAMP GP 2 CIRCUIT 10MSOP

0

TLV2451IDBVT

TLV2451IDBVT

Texas Instruments

IC OPAMP GP 1 CIRCUIT SOT23-5

89

NJU7002D

NJU7002D

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DIP

0

OPA377AIDBVT

OPA377AIDBVT

Texas Instruments

IC OPAMP GP 1 CIRCUIT SOT23-5

2184

LT6005CDHC#TRPBF

LT6005CDHC#TRPBF

Analog Devices, Inc.

IC OPAMP GP 4 CIRCUIT 16DFN

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

RFQ BOM Call Skype Email
Top