Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
TLV2422MFKB

TLV2422MFKB

Texas Instruments

OPERATIONAL AMPLIFIER

102

LMH6624MF

LMH6624MF

Texas Instruments

IC VOLT FEEDBACK 1CIRC SOT23-5

15166

OPA4354AIPWRG4

OPA4354AIPWRG4

Texas Instruments

IC OPAMP VFB 4 CIRCUIT 14TSSOP

0

LP2902N/NOPB

LP2902N/NOPB

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14DIP

768

LMH6609MF/NOPB

LMH6609MF/NOPB

Texas Instruments

IC OPAMP VFB 1 CIRCUIT SOT23-5

149110000

INA293B3QDBVRQ1

INA293B3QDBVRQ1

Texas Instruments

AEC-Q100 -4-V TO 110-V, 1.3MHZ,

2724

OPA4705EA/2K5

OPA4705EA/2K5

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14TSSOP

0

OPA2301AIDR

OPA2301AIDR

Texas Instruments

OPA2301 LOW-NOISE, HIGH-SPEED, 1

28160

TLC082IP

TLC082IP

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8DIP

361

OPA404KU

OPA404KU

Texas Instruments

IC OPAMP GP 4 CIRCUIT 16SOIC

5

INA101KUE4

INA101KUE4

Texas Instruments

IC INST AMP 1 CIRCUIT 16SOIC

0

TLV2622IDGKR

TLV2622IDGKR

Texas Instruments

TLV2622 800 UA/CH, 11MHZ, RRO, L

18038

TLV4313IPWR

TLV4313IPWR

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14TSSOP

0

TLV2453CN

TLV2453CN

Texas Instruments

OPERATIONAL AMPLIFIER

40675

TL35072P

TL35072P

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8DIP

10822500

LMV358QDGKRG4

LMV358QDGKRG4

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8VSSOP

0

OPA2344UA

OPA2344UA

Texas Instruments

IC OPAMP GP 2 CIRCUIT 8SOIC

1910

TL032CD

TL032CD

Texas Instruments

IC OPAMP JFET 2 CIRCUIT 8SOIC

740

OPA4354AQPWRQ1

OPA4354AQPWRQ1

Texas Instruments

IC CMOS 4 CIRCUIT 14TSSOP

689

LM2902DRG3

LM2902DRG3

Texas Instruments

IC OPAMP GP 4 CIRCUIT 14SOIC

2265

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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