Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
5962-9080702Q2A

5962-9080702Q2A

Texas Instruments

TLE2061AM EXCALIBUR JFET-INPUT L

0

OPA2890IDGST

OPA2890IDGST

Texas Instruments

IC OPAMP VFB 2 CIRCUIT 10VSSOP

138

TLV2454AIPWR

TLV2454AIPWR

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14TSSOP

735

AMC1200BDUBR

AMC1200BDUBR

Texas Instruments

IC OPAMP ISOLATION 1 CIRC 8SOP

0

TLV2772CP

TLV2772CP

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8DIP

100

TLV2475IDR

TLV2475IDR

Texas Instruments

IC GP OPAMP 4 CIRCUIT 16SOIC

7500

TLV3544QPWRQ1

TLV3544QPWRQ1

Texas Instruments

IC CMOS 4 CIRCUIT 14TSSOP

0

OPA454AIDDA

OPA454AIDDA

Texas Instruments

IC OPAMP GP 1 CIRCUIT 8SOPWRPAD

3042475

TLV2402IDGK

TLV2402IDGK

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8VSSOP

240

LMV321M7/NOPB

LMV321M7/NOPB

Texas Instruments

IC OPAMP GP 1 CIRCUIT SC70-5

2147483647

TLC2274AQDRG4

TLC2274AQDRG4

Texas Instruments

TLC2274A ADVANCED LINCMOS RAIL-T

2500

THS4121CDGKR

THS4121CDGKR

Texas Instruments

IC OPAMP DIFF 1 CIRCUIT 8VSSOP

0

TLV2474QDRG4Q1

TLV2474QDRG4Q1

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14SOIC

2507

OPA2354AIDDA

OPA2354AIDDA

Texas Instruments

IC OPAMP VFB 2 CIRCUIT 8SOPWRPAD

493

THS4215D

THS4215D

Texas Instruments

IC OPAMP VFB 1 CIRCUIT 8SOIC

30

OPA820IDBVRG4

OPA820IDBVRG4

Texas Instruments

IC OPAMP VFB 1 CIRCUIT SOT23-5

0

THS4502IDGN

THS4502IDGN

Texas Instruments

IC OPAMP DIFF 1 CIRCUIT 8MSOP

61

THS4151CDGN

THS4151CDGN

Texas Instruments

IC OPAMP DIFF 1 CIRCUIT 8MSOP

45

TL064ID

TL064ID

Texas Instruments

IC OPAMP JFET 4 CIRCUIT 14SOIC

104710000

OPA1688IDRGR

OPA1688IDRGR

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SON OPA1688IDRGR

66000

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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