Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
NJU7016M

NJU7016M

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DMP

0

TSV611AILT

TSV611AILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

0

LM6154BCM/NOPB

LM6154BCM/NOPB

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14SOIC

1229

NJM2904D

NJM2904D

New Japan Radio (NJR)

IC OPAMP GP 2 CIRCUIT 8DIP

0

AD8607ARMZ-REEL

AD8607ARMZ-REEL

Analog Devices, Inc.

IC OPAMP GP 2 CIRCUIT 8MSOP

0

MCP601-E/P

MCP601-E/P

Roving Networks / Microchip Technology

IC OPAMP GP 1 CIRCUIT 8DIP

629

ALD2702APAL

ALD2702APAL

Advanced Linear Devices, Inc.

IC OPAMP GP 2 CIRCUIT 8DIP

0

ISL28227FUZ-T7

ISL28227FUZ-T7

Intersil (Renesas Electronics America)

IC OPAMP GP 2 CIRCUIT 8MSOP

0

TLC085CN

TLC085CN

Texas Instruments

TLC085 QUAD 16V, 10MHZ, HIGH OUT

3200

AD8275BRMZ

AD8275BRMZ

Analog Devices, Inc.

IC OPAMP DIFF 1 CIRCUIT 8MSOP

267

TL082AIYDT

TL082AIYDT

STMicroelectronics

IC OPAMP JFET 2 CIRCUIT 8SO

0

TSM104WIDT

TSM104WIDT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 16SO

0

MCP6479T-E/ST

MCP6479T-E/ST

Roving Networks / Microchip Technology

IC GEN PURP 4 CIRC 14TSSOP

2492

OPA2674IDRG4

OPA2674IDRG4

Texas Instruments

IC OPAMP CFA 2 CIRCUIT 8SOIC

0

LT1994MPDD#TRPBF

LT1994MPDD#TRPBF

Analog Devices, Inc.

IC OPAMP DIFF 1 CIRCUIT 8DFN

0

LMC6034IMX/NOPB

LMC6034IMX/NOPB

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14SOIC

8349

CA3440T

CA3440T

NANOPOWER OPERATIONAL AMPLIFIER

862

OPA2211AIDDAR

OPA2211AIDDAR

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOPWRPAD

2710

ADA4940-1ACPZ-R2

ADA4940-1ACPZ-R2

Analog Devices, Inc.

IC OPAMP DIFF 1 CIRCUIT 16LFCSP

0

OPA322SAIDBVT

OPA322SAIDBVT

Texas Instruments

IC OPAMP GP 1 CIRCUIT SOT23-5

994

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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