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LF347D

Operational Amplifiers - Op Amps Op Amp

Quantity Unit Price(USD) Ext. Price
5000 $0.160 $800.00
2500 $0.168 $420.00
150 $0.209 $31.35
50 $0.231 $11.55
5 $0.284 $1.42
500 $0.180 $90.00

Inventory:8,488

*The price is for reference only.
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Overview of LF347D

The LF347D is a quad JFET-input operational amplifier IC known for its high input impedance and low input bias current.It features four independent operational amplifiers in a single package,offering a versatile solution for precision analog circuit designs.

Pinout

(Note:The pin configuration below is a general representation.Refer to the specific datasheet for precise details.)

  • OUT1:Output of Amplifier 1
  • -IN1:Inverting Input of Amplifier 1
  • +IN1:Non-Inverting Input of Amplifier 1
  • V-:Negative Power Supply
  • OUT2:Output of Amplifier 2
  • -IN2:Inverting Input of Amplifier 2
  • +IN2:Non-Inverting Input of Amplifier 2
  • V+:Positive Power Supply
  • OUT3:Output of Amplifier 3
  • -IN3:Inverting Input of Amplifier 3
  • +IN3:Non-Inverting Input of Amplifier 3
  • NC:No Connection
  • OUT4:Output of Amplifier 4
  • -IN4:Inverting Input of Amplifier 4
  • +IN4:Non-Inverting Input of Amplifier 4


Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the LF347D IC for a visual representation.

Key Features

  • Quad JFET-Input Op-Amp:The LF347D integrates four JFET-input operational amplifiers,combining high input impedance with low input bias current for precise signal amplification.
  • Wide Supply Voltage Range:This IC can operate with a dual power supply ranging from ±5V to ±18V,allowing for compatibility with various analog circuit configurations.
  • Low Noise:The LF347D offers low input noise and low offset voltage,ideal for applications requiring accurate amplification of low-level signals.
  • High Slew Rate:With a high slew rate,the LF347D enables rapid signal amplification and response in dynamic analog circuits.
  • Robust Performance:The LF347D provides high gain bandwidth,high common-mode rejection ratio(CMRR),and thermal shutdown protection for reliable operation.

Note:For detailed technical specifications,please refer to the LF347D datasheet.

Application

  • Instrumentation Amplifiers:The LF347D is suitable for use in instrumentation amplifiers,signal conditioning circuits,and sensor interface applications.
  • Active Filters:This IC can be utilized in active filter designs,providing precise amplification and signal processing capabilities.
  • Audio Circuits:The LF347D is commonly used in audio preamplifiers,mixers,and equalizers for high-fidelity audio signal processing.

Functionality

The LF347D's quad JFET-input design enables it to provide high input impedance,low input bias current,and precise signal amplification,making it an ideal choice for precision analog applications that demand high performance.

Usage Guide

  • Power Supplies:Connect V+ and V-to the positive and negative power supplies respectively to provide the required operating voltages.
  • Input Connections:Connect the non-inverting and inverting input pins(+IN1,-IN1,etc.)to the respective input signals for each operational amplifier.
  • Output Handling:Take the output signals(OUT1,OUT2,OUT3,OUT4)from the amplifiers to further stages in the circuit.

Frequently Asked Questions

Q:What is the input bias current of the LF347D?
A:The LF347D features a low input bias current,making it suitable for applications requiring minimal input loading.

Q:Can the LF347D operate with a single power supply?
A:While the LF347D is designed for dual power supply operation,external biasing techniques can be used to adapt it for single supply use.

Equivalent

For similar functionalities,consider these alternatives to the LF347D:

  • TL074:This is a quad JFET-input operational amplifier IC from Texas Instruments,offering similar performance and functionality to the LF347D.
  • LM324:An industry-standard quad op-amp IC that provides versatile analog signal processing capabilities comparable to the LF347D.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Source Content uid LF347D Part Life Cycle Code Active
Ihs Manufacturer STMICROELECTRONICS Part Package Code SOIC
Package Description SOP, SOP14,.25 Pin Count 14
Reach Compliance Code compliant ECCN Code EAR99
HTS Code 8542.33.00.01 Factory Lead Time 54 Weeks
Samacsys Manufacturer STMicroelectronics Amplifier Type OPERATIONAL AMPLIFIER
Architecture VOLTAGE-FEEDBACK Average Bias Current-Max (IIB) 0.02 µA
Bias Current-Max (IIB) @25C 0.0002 µA Common-mode Reject Ratio-Nom 86 dB
Frequency Compensation YES Input Offset Current-Max (IIO) 0.004 µA
Input Offset Voltage-Max 13000 µV JESD-30 Code R-PDSO-G14
JESD-609 Code e4 Length 8.65 mm
Low-Bias YES Low-Offset NO
Moisture Sensitivity Level 1 Neg Supply Voltage Limit-Max -18 V
Neg Supply Voltage-Nom (Vsup) -15 V Number of Functions 4
Number of Terminals 14 Operating Temperature-Max 70 °C
Operating Temperature-Min Package Body Material PLASTIC/EPOXY
Package Code SOP Package Equivalence Code SOP14,.25
Package Shape RECTANGULAR Package Style SMALL OUTLINE
Packing Method TUBE Peak Reflow Temperature (Cel) 260
Power Supplies +-15 V Qualification Status Not Qualified
Seated Height-Max 1.75 mm Slew Rate-Min 12 V/us
Slew Rate-Nom 16 V/us Supply Current-Max 10.8 mA
Supply Voltage Limit-Max 18 V Supply Voltage-Nom (Vsup) 15 V
Surface Mount YES Technology BIPOLAR
Temperature Grade COMMERCIAL Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form GULL WING Terminal Pitch 1.27 mm
Terminal Position DUAL Time@Peak Reflow Temperature-Max (s) 30
Unity Gain BW-Nom 4000 Voltage Gain-Min 25000
Width 3.9 mm Manufacturer STMicroelectronics
Product Category Operational Amplifiers - Op Amps RoHS Details
Mounting Style SMD/SMT Package / Case SOIC-14
Number of Channels 4 Channel Supply Voltage - Max 18 V
GBP - Gain Bandwidth Product 4 MHz Output Current per Channel 60 mA
SR - Slew Rate 16 V/us Vos - Input Offset Voltage 10 mV
Supply Voltage - Min - 18 V Minimum Operating Temperature 0 C
Maximum Operating Temperature + 70 C Ib - Input Bias Current 200 pA
Operating Supply Current 2 mA Shutdown No Shutdown
CMRR - Common Mode Rejection Ratio 100 dB en - Input Voltage Noise Density 15 nV/sqrt Hz
Series LF347 Brand STMicroelectronics
Height 1.65 mm Input Type Rail-to-Rail
Maximum Dual Supply Voltage +/- 18 V Operating Supply Voltage +/- 18 V
Pd - Power Dissipation 680 mW Product Operational Amplifiers
Product Type Op Amps - Operational Amplifiers PSRR - Power Supply Rejection Ratio 80 dB
Factory Pack Quantity 1000 Subcategory Amplifier ICs
Supply Type Dual Voltage Gain dB 106.02 dB
Unit Weight 0.009143 oz

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LF347D

Operational Amplifiers - Op Amps Op Amp

Inventory:

8,488