Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
EL8200IY

EL8200IY

IC VOLTAGE FEEDBACK 2CIRC 10MSOP

17330

LT1636CS8#PBF

LT1636CS8#PBF

Analog Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8SO

2418

OPA2132U/2K5

OPA2132U/2K5

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

24962500

MC3303PWR

MC3303PWR

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14TSSOP

2835

AD8007AKSZ-REEL7

AD8007AKSZ-REEL7

Analog Devices, Inc.

IC OPAMP CFA 1 CIRCUIT SC70-5

2810

MCP6V62-E/MS

MCP6V62-E/MS

Roving Networks / Microchip Technology

IC OPAMP ZERO-DRIFT 2 CIRC 8MSOP

0

OPA227PAG4

OPA227PAG4

Texas Instruments

IC OPAMP GP 1 CIRCUIT 8DIP

0

MAX4376HAUK

MAX4376HAUK

Analog Devices, Inc.

HIGH-SIDE CURRENT-SENSE AMP

0

AD704ARZ-16

AD704ARZ-16

Analog Devices, Inc.

IC OPAMP GP 4 CIRCUIT 16SOIC

237

TSV321RIYLT

TSV321RIYLT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

42

MCP6407-H/SN

MCP6407-H/SN

Roving Networks / Microchip Technology

IC OPAMP GP 2 CIRCUIT 8SOIC

630

LM359M

LM359M

Texas Instruments

IC GP OPAMP 2 CIRCUIT 14SOIC

0

LMP8603MME/NOPB

LMP8603MME/NOPB

Texas Instruments

IC CURR SENSE 1 CIRCUIT 8VSSOP

2397

LT1210CS#PBF

LT1210CS#PBF

Analog Devices, Inc.

IC OPAMP CFA 1 CIRCUIT 16SO

1290

ADA4891-4ARUZ-R7

ADA4891-4ARUZ-R7

Analog Devices, Inc.

IC OPAMP GP 4 CIRCUIT 14TSSOP

0

ICL7611ACSA

ICL7611ACSA

Analog Devices, Inc.

IC GP OPAMP 1 CIRCUIT 8SOIC

1136

LT6233CS6-10#TRPBF

LT6233CS6-10#TRPBF

Analog Devices, Inc.

IC OPAMP GP 1 CIRCUIT TSOT23-6

0

MAX4490AXK+

MAX4490AXK+

Analog Devices, Inc.

MAX4490 LOW-COST, HIGH-SLEW-RATE

0

TLC080ID

TLC080ID

Texas Instruments

TLC080 SINGLE WIDE-BANDWIDTH HIG

51346

TL074BCN

TL074BCN

Texas Instruments

IC OPAMP JFET 4 CIRCUIT 14DIP

142410000

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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