Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
ISL28130CHZ-T7A

ISL28130CHZ-T7A

Intersil (Renesas Electronics America)

IC OPAMP GP 1 CIRCUIT SOT23-5

0

ISL28218FUZ-T7

ISL28218FUZ-T7

Intersil (Renesas Electronics America)

IC OPAMP GP 2 CIRCUIT 8MSOP

0

ICL7650SCPDZ

ICL7650SCPDZ

Intersil (Renesas Electronics America)

IC OPAMP ZERO-DRIFT 1 CIRC 14DIP

0

EL5172IYZ-T13

EL5172IYZ-T13

Intersil (Renesas Electronics America)

IC OPAMP DIFF 1 CIRCUIT 8MSOP

0

5962-9306302M2A

5962-9306302M2A

Intersil (Renesas Electronics America)

SAMPLE AND HOLD

246

ICL7611DCPA

ICL7611DCPA

Intersil (Renesas Electronics America)

IC GP OPAMP 1 CIRCUIT 8DIP

9455

HA7-2515-5

HA7-2515-5

Intersil (Renesas Electronics America)

HIGH INPUT IMPEDANCE OP AMP

120

ISL28110FBZ-T7A

ISL28110FBZ-T7A

Intersil (Renesas Electronics America)

IC OPAMP JFET 1 CIRCUIT 8SOIC

0

EL5234IY

EL5234IY

Intersil (Renesas Electronics America)

VIDEO AMPLIFIER

2700

ISL28108FRTZ-T7A

ISL28108FRTZ-T7A

Intersil (Renesas Electronics America)

IC OPAMP GP 1 CIRCUIT 8TDFN

0

HA9P2841-5

HA9P2841-5

Intersil (Renesas Electronics America)

VIDEO OPERATIONAL AMPLIFIER

1944

ISL28535FVZ

ISL28535FVZ

Intersil (Renesas Electronics America)

IC OPAMP ZER-DRIFT 1CIRC 14TSSOP

0

HA9P5320-5Z

HA9P5320-5Z

Intersil (Renesas Electronics America)

IC OPAMP SAMPL/HOLD 1CIRC 16SOIC

0

ISL28177FBZ-T7A

ISL28177FBZ-T7A

Intersil (Renesas Electronics America)

IC OPAMP GP 1 CIRCUIT 8SOIC

5

ISL28133FEZ-T7

ISL28133FEZ-T7

Intersil (Renesas Electronics America)

IC OPAMP ZERO-DRIFT 1CIRC SC70-5

4078

EL5364IUZA

EL5364IUZA

Intersil (Renesas Electronics America)

IC OPAMP CFA 3 CIRCUIT 16QSOP

0

EL5420CRZ-T13

EL5420CRZ-T13

Intersil (Renesas Electronics America)

IC OPAMP VFB 4 CIRCUIT 14TSSOP

0

EL5244CS-T7

EL5244CS-T7

Intersil (Renesas Electronics America)

IC VOLTAGE FEEDBACK 2 CIRC 8SOIC

824

ISL28130FHZ-T7

ISL28130FHZ-T7

Intersil (Renesas Electronics America)

IC OPAMP GP 1 CIRCUIT SOT23-5

0

ISL28136FBZ-T7

ISL28136FBZ-T7

Intersil (Renesas Electronics America)

IC OPAMP GP 1 CIRCUIT 8SOIC

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

RFQ BOM Call Skype Email
Top