Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

Image Part Number Description / PDF Quantity Rfq
OPA4234UA

OPA4234UA

Burr-Brown (Texas Instruments)

IC GP OPAMP 4 CIRCUIT 14SOIC

50

SHC5320KH

SHC5320KH

Burr-Brown (Texas Instruments)

IC SAMPL/HOLD 1 CIRCUIT 14CDIP

2459

OPA631U

OPA631U

Burr-Brown (Texas Instruments)

IC VOLTAGE FEEDBACK 1 CIRC 8SOIC

9475

OPA2137PG4

OPA2137PG4

Burr-Brown (Texas Instruments)

IC GP OPAMP 2 CIRCUIT 8DIP

0

OPA27GUG4

OPA27GUG4

Burr-Brown (Texas Instruments)

OPA27 ULTRA-LOW NOISE PRECISION

0

OPA124P

OPA124P

Burr-Brown (Texas Instruments)

IC GP OPAMP 1 CIRCUIT 8DIP

19019

OPA651U

OPA651U

Burr-Brown (Texas Instruments)

IC VOLTAGE FEEDBACK 1 CIRC 8SOIC

0

OPA404KPG4

OPA404KPG4

Burr-Brown (Texas Instruments)

OPA404 QUAD HIGH SPEED PRECISION

45

OPA2703UAG4

OPA2703UAG4

Burr-Brown (Texas Instruments)

IC GP OPAMP 2 CIRCUIT 8SOIC

0

OPA2607H/2K5

OPA2607H/2K5

Burr-Brown (Texas Instruments)

IC CFA 2 CIRCUIT 8HSOP

62500

OPA2686U/2K5

OPA2686U/2K5

Burr-Brown (Texas Instruments)

IC VOLTAGE FEEDBACK 2 CIRC 8SOIC

13500

OPA338UA

OPA338UA

Burr-Brown (Texas Instruments)

OPA338 SINGLE 12.5MHZ MICROSIZE,

60503

OPA2677T/2K5

OPA2677T/2K5

Burr-Brown (Texas Instruments)

OPERATIONAL AMPLIFIER

42500

OPA2681N-1

OPA2681N-1

Burr-Brown (Texas Instruments)

OPERATIONAL AMPLIFIER

47458

OPA687U

OPA687U

Burr-Brown (Texas Instruments)

IC VOLTAGE FEEDBACK 1 CIRC 8SOIC

5093

OPA2277UG4

OPA2277UG4

Burr-Brown (Texas Instruments)

OPA2277 10V, HIGH-PRECISION, LOW

37

OPA2227PAG4

OPA2227PAG4

Burr-Brown (Texas Instruments)

IC GP OPAMP 2 CIRCUIT 8DIP

0

OPA228P

OPA228P

Burr-Brown (Texas Instruments)

OPA228 SINGLE HIGH PRECISION, WI

12447

OPA632U

OPA632U

Burr-Brown (Texas Instruments)

IC VOLTAGE FEEDBACK 1 CIRC 8SOIC

41957

INA129A

INA129A

Burr-Brown (Texas Instruments)

INSTRUMENTATION AMPLIFIER, 1 FUN

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