Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
TLV6002QDRQ1

TLV6002QDRQ1

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

4958

TLV2254IDR

TLV2254IDR

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14SOIC

214610000

LMP2014MTX/NOPB

LMP2014MTX/NOPB

Texas Instruments

QUAD, HIGH PRECISION, RAIL-TO-RA

10000

TL972IDR

TL972IDR

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

9293

TLV2231IDBVR

TLV2231IDBVR

Texas Instruments

IC OPAMP GP 1 CIRCUIT SOT23-5

0

THS4130CDGNRG4

THS4130CDGNRG4

Texas Instruments

IC OPAMP DIFF 1 CIRCUIT 8MSOP

0

TL071BCDE4

TL071BCDE4

Texas Instruments

IC OPAMP JFET 1 CIRCUIT 8SOIC

0

ONET3301PARGTR

ONET3301PARGTR

Texas Instruments

IC OPAMP LIMITING 1 CIRC 16QFN

19500

OPA2674I-14D

OPA2674I-14D

Texas Instruments

OPA2674 DUAL, WIDEBAND, HIGH OUT

19811

INA148UA/2K5

INA148UA/2K5

Texas Instruments

IC OPAMP DIFF 1 CIRCUIT 8SOIC

3187

INA149AMDREP

INA149AMDREP

Texas Instruments

IC OPAMP DIFF 1 CIRCUIT 8SOIC

2606

INA118UB

INA118UB

Texas Instruments

IC INST AMP 1 CIRCUIT 8SOIC

0

TLC2262CPG4

TLC2262CPG4

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8DIP

0

THS4012CDGNR

THS4012CDGNR

Texas Instruments

IC OPAMP VFB 2 CIRCUIT 8MSOP

1808

OPA2889IDGSTG4

OPA2889IDGSTG4

Texas Instruments

IC OPAMP VFB 2 CIRCUIT 10VSSOP

0

LMH6559MF

LMH6559MF

Texas Instruments

IC BUFFER 1 CIRCUIT SOT23-5

1304

TLE2022QDREP

TLE2022QDREP

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

0

INA293A5IDBVR

INA293A5IDBVR

Texas Instruments

IC CURR SENSE 1 CIRCUIT SOT23-5

1565

INA128UAE4

INA128UAE4

Texas Instruments

IC INST AMP 1 CIRCUIT 8SOIC

0

OPA686N/250

OPA686N/250

Texas Instruments

IC VOLT FEEDBACK 1CIRC SOT23-5

3050

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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