Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
TSV358IDT

TSV358IDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

3972

TS951RIYLT

TS951RIYLT

STMicroelectronics

IC OPAMP GP RRIO SOT23-5

0

TSC2010IYST

TSC2010IYST

STMicroelectronics

HIGH VOLTAGE, PRECISION, BIDIREC

0

TSX632IST

TSX632IST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

0

TSZ182HYDT

TSZ182HYDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SOIC

718

LMX324IPT

LMX324IPT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14TSSOP

0

TSV631AILT

TSV631AILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

6144

TS27L2IPT

TS27L2IPT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8TSSOP

1208

TSM104WID

TSM104WID

STMicroelectronics

IC GP OPAMP 4 CIRCUIT 16SO

2360

TS914IYDT

TS914IYDT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

0

TSC101BILT

TSC101BILT

STMicroelectronics

IC CURR SENSE 1 CIRCUIT SOT23-5

0

TS27M2IN

TS27M2IN

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8DIP

0

TS272CDT

TS272CDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

10

LMV358IPT

LMV358IPT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8TSSOP

270

LMV824AIDT

LMV824AIDT

STMicroelectronics

IC OPAMP GP 4 CIRCUIT 14SO

0

TSX7191ILT

TSX7191ILT

STMicroelectronics

IC OPAMP GP 1 CIRCUIT SOT23-5

0

TSC101AIYLT

TSC101AIYLT

STMicroelectronics

IC CURR SENSE 1 CIRCUIT SOT23-5

275

TSV632IST

TSV632IST

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8MINISO

3967

MC4558CDT

MC4558CDT

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8SO

2815

TS27M2AIN

TS27M2AIN

STMicroelectronics

IC OPAMP GP 2 CIRCUIT 8DIP

0

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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