Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
TLV2462AQDRG4

TLV2462AQDRG4

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

0

TLE2082ACDG4

TLE2082ACDG4

Texas Instruments

IC OPAMP JFET 2 CIRCUIT 8SOIC

0

TLC2262QD

TLC2262QD

Texas Instruments

TLC2262 DUAL ADVANCED LINCMOS RA

35925

LMC6464AIM/NOPB

LMC6464AIM/NOPB

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14SOIC

4936

INA293B3IDBVR

INA293B3IDBVR

Texas Instruments

IC CURR SENSE 1 CIRCUIT SOT23-5

2036

TLV2455ID

TLV2455ID

Texas Instruments

TLV2455 QUAD MICROPOWER RAIL-TO-

15305

INA213BQDCKRQ1

INA213BQDCKRQ1

Texas Instruments

IC CURR SENSE 1 CIRCUIT SC70-6

919

TLV2444AIDR

TLV2444AIDR

Texas Instruments

OPERATIONAL AMPLIFIER

2500

TLC2272ACDRG4

TLC2272ACDRG4

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

0

TLC2262CPWR

TLC2262CPWR

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8TSSOP

10815

OPA656UB

OPA656UB

Texas Instruments

IC OPAMP VFB 1 CIRCUIT 8SOIC

1070

OPA2202IDGKR

OPA2202IDGKR

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8VSSOP

1284

THS4022IDGN

THS4022IDGN

Texas Instruments

THS4022 350-MHZ LOW-NOISE VOLTAG

35489

TLV2463AID

TLV2463AID

Texas Instruments

IC GP OPAMP 2 CIRCUIT 14SOIC

3080

TS321QDBVRQ1

TS321QDBVRQ1

Texas Instruments

TS321-Q1 AUTOMOTIVE CATALOG LOW-

6835

LF298M/NOPB

LF298M/NOPB

Texas Instruments

IC OPAMP SAMPL/HOLD 1CIRC 14SOIC

650

OPA134PAG4

OPA134PAG4

Texas Instruments

IC AUDIO 1 CIRCUIT 8DIP

32810000

TLV3542IDR

TLV3542IDR

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

545

LMV324Q3MTX/NOPB

LMV324Q3MTX/NOPB

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14TSSOP

0

TLC2654CP

TLC2654CP

Texas Instruments

IC OPAMP GP 1 CIRCUIT 8DIP

61

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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