Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
AK2922H

AK2922H

Asahi Kasei Microdevices / AKM Semiconductor

IC OPAMP ZERO-DRIFT 2 CIRC 8MSOP

0

AK2910T

AK2910T

Asahi Kasei Microdevices / AKM Semiconductor

IC OPAMP ZERO-DRIFT 1CIRC 8TMSOP

0

AK2970H

AK2970H

Asahi Kasei Microdevices / AKM Semiconductor

IC OPAMP ZERO-DRIFT 2 CIRC 8MSOP

0

AK2929T

AK2929T

Asahi Kasei Microdevices / AKM Semiconductor

IC OPAMP ZERO-DRIFT 2CIRC 8TMSOP

0

AK2920T

AK2920T

Asahi Kasei Microdevices / AKM Semiconductor

IC OPAMP ZERO-DRIFT 1CIRC 8TMSOP

0

AK2921T

AK2921T

Asahi Kasei Microdevices / AKM Semiconductor

IC OPAMP ZERO-DRIFT 2CIRC 8TMSOP

0

AK2928T

AK2928T

Asahi Kasei Microdevices / AKM Semiconductor

IC OP AMP ZERO DRIFT MSOP

0

AK2923U

AK2923U

Asahi Kasei Microdevices / AKM Semiconductor

IC OP AMP ZERO DRIFT

0

AK2943N

AK2943N

Asahi Kasei Microdevices / AKM Semiconductor

IC OP AMP ZERO DRIFT

0

AK2925U

AK2925U

Asahi Kasei Microdevices / AKM Semiconductor

INTEGRATED CIRCUIT

0

AK2923UA

AK2923UA

Asahi Kasei Microdevices / AKM Semiconductor

IC OP AMP ZERO DRIFT

0

AK2927U

AK2927U

Asahi Kasei Microdevices / AKM Semiconductor

IC OP AMP ZERO DRIFT

0

AK2563E

AK2563E

Asahi Kasei Microdevices / AKM Semiconductor

IC OP AMP

0

AK2924T

AK2924T

Asahi Kasei Microdevices / AKM Semiconductor

IC OP AMP ZERO DRIFT MSOP

0

AK2563D

AK2563D

Asahi Kasei Microdevices / AKM Semiconductor

IC OP AMP

0

AK2923T

AK2923T

Asahi Kasei Microdevices / AKM Semiconductor

IC OP AMP ZERO DRIFT MSOP

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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