Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
LT1793ACS8#PBF

LT1793ACS8#PBF

Analog Devices, Inc.

IC OPAMP JFET 1 CIRCUIT 8SO

207

MAX4486ASA

MAX4486ASA

Analog Devices, Inc.

IC GP OPAMP 2 CIRCUIT 8SOIC

1429

ADA4610-2ARMZ

ADA4610-2ARMZ

Analog Devices, Inc.

IC OPAMP JFET 2 CIRCUIT 8MSOP

11

AD515AKH

AD515AKH

Analog Devices, Inc.

LOW POWER ELECTROMETER OP AMP

49

LT6011ACS8#PBF

LT6011ACS8#PBF

Analog Devices, Inc.

IC OPAMP GP 2 CIRCUIT 8SO

2979

OP4177ARU

OP4177ARU

Analog Devices, Inc.

IC GP OPAMP 4 CIRCUIT 14TSSOP

0

LT1812IS6#TRPBF

LT1812IS6#TRPBF

Analog Devices, Inc.

IC OPAMP VFB 1 CIRCUIT TSOT23-6

0

LT1260IS#TRPBF

LT1260IS#TRPBF

Analog Devices, Inc.

IC OPAMP CFA 3 CIRCUIT 16SO

0

MAX474EPA+

MAX474EPA+

Analog Devices, Inc.

UAL 10MHZ SINGLE-SUPPLY OP AMP

3508

LT6013AIDD#TRPBF

LT6013AIDD#TRPBF

Analog Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8DFN

0

MAX4175BNEUK-T

MAX4175BNEUK-T

Analog Devices, Inc.

OPERATIONAL AMPLIFIER

2500

AD8040WARUZ-REEL7

AD8040WARUZ-REEL7

Analog Devices, Inc.

IC OPAMP GP 4 CIRCUIT 14TSSOP

1650

LT6013CS8#TRPBF

LT6013CS8#TRPBF

Analog Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8SO

0

LT1793CS8#PBF

LT1793CS8#PBF

Analog Devices, Inc.

IC OPAMP JFET 1 CIRCUIT 8SO

1866

OP177GP

OP177GP

Analog Devices, Inc.

IC GP OPAMP 1 CIRCUIT 8DIP

27840

LT6600CS8-5#PBF

LT6600CS8-5#PBF

Analog Devices, Inc.

IC OPAMP DIFF 1 CIRCUIT 8SO

126

AD8206WHRZ

AD8206WHRZ

Analog Devices, Inc.

OPERATIONAL AMPLIFIER, 4500UV OF

1431

LTC1992-1CMS8#PBF

LTC1992-1CMS8#PBF

Analog Devices, Inc.

IC OPAMP DIFF 1 CIRCUIT 8MSOP

5191

AD640JNZ

AD640JNZ

Analog Devices, Inc.

IC OPAMP LOGARITHMIC 1CIRC 20DIP

129

LTC6915HGN#TRPBF

LTC6915HGN#TRPBF

Analog Devices, Inc.

IC INST AMP 1 CIRCUIT 16SSOP

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

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