Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
AD625BD/+

AD625BD/+

Analog Devices, Inc.

IC INST AMP 1 CIRCUIT 16CDIP

38

AD8051ARTZ-REEL

AD8051ARTZ-REEL

Analog Devices, Inc.

IC OPAMP VFB 1 CIRCUIT SOT23-5

13030

PM356AJ

PM356AJ

Analog Devices, Inc.

OPERATIONAL AMPLIFIER

591

AD8227ARZ-R7

AD8227ARZ-R7

Analog Devices, Inc.

IC INST AMP 1 CIRCUIT 8SOIC

68

AD8063ARZ-REEL

AD8063ARZ-REEL

Analog Devices, Inc.

IC OPAMP VFB 1 CIRCUIT 8SOIC

0

AD827JNZ

AD827JNZ

Analog Devices, Inc.

IC OPAMP GP 2 CIRCUIT 8DIP

152

AD629ANZ

AD629ANZ

Analog Devices, Inc.

IC OPAMP DIFF 1 CIRCUIT 8DIP

707

MAX4245AXT-T

MAX4245AXT-T

Analog Devices, Inc.

IC GP OPAMP 1 CIRCUIT SC70-6

0

AD8672AR

AD8672AR

Analog Devices, Inc.

IC GP OPAMP 2 CIRCUIT 8SOIC

12402

LT1014ISW#PBF

LT1014ISW#PBF

Analog Devices, Inc.

IC OPAMP GP 4 CIRCUIT 16SO

2589

ICL7641BCPD+

ICL7641BCPD+

Analog Devices, Inc.

OPERATIONAL AMPLIFIER

5417

PM1008AJ

PM1008AJ

Analog Devices, Inc.

OPERATIONAL AMPLIFIER

1365

AD8567ACP-REEL

AD8567ACP-REEL

Analog Devices, Inc.

IC GP OPAMP 4 CIRCUIT 16LFCSP

218

LTC2064IDD#TRPBF

LTC2064IDD#TRPBF

Analog Devices, Inc.

IC OPAMP ZERO-DRIFT 2 CIRC 10DFN

0

OP90GSZ-REEL7

OP90GSZ-REEL7

Analog Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8SOIC

25

LTC1250CS8#PBF

LTC1250CS8#PBF

Analog Devices, Inc.

IC OPAMP ZERO-DRIFT 1 CIRC 8SO

1116

ADA4610-2BRZ-R7

ADA4610-2BRZ-R7

Analog Devices, Inc.

IC OPAMP JFET 2 CIRCUIT 8SOIC

0

AD841JNZ

AD841JNZ

Analog Devices, Inc.

IC OPAMP GP 1 CIRCUIT 14DIP

87

MAX4284ESD

MAX4284ESD

Analog Devices, Inc.

IC GP OPAMP 4 CIRCUIT 14SOIC

2260

AD8677ARZ-REEL7

AD8677ARZ-REEL7

Analog Devices, Inc.

IC OPAMP GP 1 CIRCUIT 8SOIC

538

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