Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
OPA2348AIDCNR

OPA2348AIDCNR

Texas Instruments

IC OPAMP GP 2 CIRCUIT SOT23-8

0

TLV2444AID

TLV2444AID

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14SOIC

200

TLC2274AIDR

TLC2274AIDR

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14SOIC

7277500

TLV2462AIDR

TLV2462AIDR

Texas Instruments

TLV2462A DUAL LOW POWER, LOW OFF

3952

LM348DRE4

LM348DRE4

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14SOIC

0

TLC2262AIPWRG4

TLC2262AIPWRG4

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8TSSOP

0

LM10CN/NOPB

LM10CN/NOPB

Texas Instruments

IC OPAMP GP 1 CIRCUIT 8DIP

2270

OPA356AIDBVTG4

OPA356AIDBVTG4

Texas Instruments

IC OPAMP VFB 1 CIRCUIT SOT23-5

0

LMP2022MM/NOPB

LMP2022MM/NOPB

Texas Instruments

IC OPAMP ZERO-DRIFT 2CIRC 8VSSOP

1994

TLC080IDGNR

TLC080IDGNR

Texas Instruments

TLC080 SINGLE WIDE-BANDWIDTH HIG

1040

OPA2343UA/2K5G4

OPA2343UA/2K5G4

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

0

LMH6639MF

LMH6639MF

Texas Instruments

OP AMP, 1 FUNC, 5000UV OFFSET-MA

50857

LPV321M7X/NOPB

LPV321M7X/NOPB

Texas Instruments

IC OPAMP GP 1 CIRCUIT SC70-5

44594

TL972IDRG4

TL972IDRG4

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

0

LMV612MMX/NOPB

LMV612MMX/NOPB

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8VSSOP

9615

LF356MX/NOPB

LF356MX/NOPB

Texas Instruments

IC OPAMP JFET 1 CIRCUIT 8SOIC

8381

OPA2889ID

OPA2889ID

Texas Instruments

IC OPAMP VFB 2 CIRCUIT 8SOIC

565

PGA204AUG4

PGA204AUG4

Texas Instruments

IC INST AMP 1 CIRCUIT 16SOIC

0

OPA691IDR

OPA691IDR

Texas Instruments

OPA691 WIDEBAND CURRENT FEEDBACK

40215

LMH6655MM/NOPB

LMH6655MM/NOPB

Texas Instruments

IC OPAMP VFB 2 CIRCUIT 8VSSOP

1580

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

RFQ BOM Call Skype Email
Top