LM148J
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National Semiconductor LM148J

Manufacturer No:
LM148J
Manufacturer:
National Semiconductor
Package:
Bulk
Description:
IC OPAMP GP 4 CIRCUIT 14CDIP
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The LM148J, produced by National Semiconductor, is a quad operational amplifier (op-amp) that consists of four independent, high-gain, internally compensated operational amplifiers. These amplifiers are designed to provide functional characteristics identical to those of the familiar 741 operational amplifier. The LM148J is notable for its low power consumption, with a total supply current comparable to that of a single 741 type op-amp. It offers excellent isolation between amplifiers, achieved through independent biasing and layout techniques that minimize thermal coupling. This component is widely used in various analog circuits due to its versatility and performance characteristics.

Key Specifications

ParameterValueUnits
Supply Voltage±22VV
Differential Input Voltage±44VV
Output Short Circuit DurationContinuous-
Power Dissipation (Pd at 25°C)1100 mW (CDIP), 750 mW (PDIP)mW
Thermal Resistance (θjA)110°C/W (CDIP), 100°C/W (PDIP)°C/W
Maximum Junction Temperature (TjMAX)150°C°C
Operating Temperature Range−55°C ≤ TA ≤ +125°C°C
Input Offset Voltage1 mV (Typ), 6 mV (Max)mV
Input Offset Current4 nA (Typ), 25 nA (Max)nA
Input Bias Current30 nA (Typ), 100 nA (Max)nA
Supply Current All Amplifiers2.4 mA (Typ), 3.6 mA (Max)mA
Gain Bandwidth Product (Unity Gain)1.0 MHzMHz

Key Features

  • 741 op-amp operating characteristics
  • Class AB output stage—no crossover distortion
  • Pin compatible with the LM124
  • Overload protection for inputs and outputs
  • Low supply current drain: 0.6 mA per amplifier
  • Low input offset voltage: 1 mV
  • Low input offset current: 4 nA
  • Low input bias current: 30 nA
  • High degree of isolation between amplifiers: 120 dB

Applications

  • Signal Amplification
  • Filter Circuits
  • Comparator Circuits
  • Oscillator Circuits
  • Active Filters
  • Instrumentation Amplifiers
  • Voltage Followers (Buffer Amplifiers)
  • Summing and Subtracting Amplifiers
  • Current-to-Voltage Converters
  • Voltage Regulators
  • Analog-to-Digital Converter (ADC) and Digital-to-Analog Converter (DAC) Interfaces
  • Audio Processing Circuits
  • Sensor Signal Conditioning

Q & A

  1. What is the LM148J operational amplifier?
    The LM148J is a quad operational amplifier consisting of four independent, high-gain, internally compensated op-amps, similar to the 741 op-amp.
  2. What is the supply voltage range for the LM148J?
    The supply voltage range for the LM148J is ±22V.
  3. What is the typical input offset voltage of the LM148J?
    The typical input offset voltage is 1 mV.
  4. What is the gain bandwidth product of the LM148J at unity gain?
    The gain bandwidth product at unity gain is 1.0 MHz.
  5. Does the LM148J have overload protection?
    Yes, the LM148J has overload protection for both inputs and outputs.
  6. What is the operating temperature range of the LM148J?
    The operating temperature range is −55°C ≤ TA ≤ +125°C.
  7. Is the LM148J pin compatible with other op-amps?
    Yes, it is pin compatible with the LM124.
  8. What are some common applications of the LM148J?
    Common applications include signal amplification, filter circuits, comparator circuits, oscillator circuits, and more.
  9. How much supply current does the LM148J typically consume per amplifier?
    The LM148J typically consumes 0.6 mA of supply current per amplifier.
  10. What is the maximum junction temperature for the LM148J?
    The maximum junction temperature is 150°C.

Product Attributes

Amplifier Type:General Purpose
Number of Circuits:4
Output Type:- 
Slew Rate:0.5V/µs
Gain Bandwidth Product:1 MHz
-3db Bandwidth:- 
Current - Input Bias:30 nA
Voltage - Input Offset:1 mV
Current - Supply:2.4mA (x4 Channels)
Current - Output / Channel:25 mA
Voltage - Supply Span (Min):10 V
Voltage - Supply Span (Max):44 V
Operating Temperature:-55°C ~ 125°C
Mounting Type:Through Hole
Package / Case:14-CDIP (0.300", 7.62mm)
Supplier Device Package:14-CDIP
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Similar Products

Part Number LM148J LM158J
Manufacturer National Semiconductor Texas Instruments
Product Status Active Active
Amplifier Type General Purpose General Purpose
Number of Circuits 4 2
Output Type - -
Slew Rate 0.5V/µs -
Gain Bandwidth Product 1 MHz 1 MHz
-3db Bandwidth - -
Current - Input Bias 30 nA 40 nA
Voltage - Input Offset 1 mV 2 mV
Current - Supply 2.4mA (x4 Channels) 1mA
Current - Output / Channel 25 mA 40 mA
Voltage - Supply Span (Min) 10 V 3 V
Voltage - Supply Span (Max) 44 V 32 V
Operating Temperature -55°C ~ 125°C -55°C ~ 125°C
Mounting Type Through Hole Through Hole
Package / Case 14-CDIP (0.300", 7.62mm) 8-CDIP (0.300", 7.62mm)
Supplier Device Package 14-CDIP 8-CDIP

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