LM348N

LM348N Datasheet

LM348/LM248

Part	Datasheet
LM348N	LM348N (pdf)

PDF Datasheet Preview
LM348/LM248 Quad Operational Amplifier • LM741 OP Amp operating characteristics • Low supply current drain • Class AB output stage no crossover distortion • Pin compatible with the LM324/LM248 • Low input offset voltage 1mV Typ. • Low input offset current 4nA Typ. • Low input bias current 30nA Typ. • Gain bandwidth unity gain 1.0MHz Typ. • High degree of isolation between amplifiers 120dB • Overload protection for inputs and outputs TheLM348/LM248 is a true quad LM741. It consists of four independent, high-gain, internally compensated, low power operational amplifiers which have been designed to provide functional characteristics identical to those of the familiar LM741 operational amplifier. In addition the total supply current for all four amplifiers is comparable to the supply current of a single LM741 type OP Amp. Other features include input offset currents and input bias current which are much less than those of a standard LM741. Also, excellent isolation between amplifiers has been achieved by independently biasing each amplifier and using layout techniques which minimize thermal coupling. 14-DIP Internal Block Diagram 1 14-SOP 2001 Fairchild Semiconductor Corporation LM348/LM248 Schematic Diagram One Section Only Absolute Maximum Ratings Parameter Supply Voltage Differential Input Voltage Input Voltage Output Short Circuit Duration Operating Temperature LM348 LM248 Storage Temperature Symbol VCC VI DIFF VI - TOPR TSTG Value ±18 36 ±18 Continuous 0 ~ +70 -25 ~ +85 - 65~ +150 Unit V - LM348/LM248 Electrical Characteristics VCC =15V, VEE= -15V, TA=25 °C, unless otherwise specified Parameter Conditions Input Offset Voltage Note 1 Input Offset Current Note 1 Input Bias Current Input Resistance Supply Current all Amplifiers Large Signal Voltage Gain Channel Separation Common Mode Input Voltage Range Small Signal Bandwidth Phase Margin Note2 Slew Rate Note2 Output Short Circuit Current Output Voltage Swing Common Mode Rejection Ratio Power Supply Rejection Ratio IBIAS RI ICC GV CS VI R BW MPH SR ISC VO P-P CMRR PSRR Note 1 Note 1 f = 1KHz to 20KHz Note 1 Ordering Information Product Number LM348N LM348M LM248N LM248M Package 14-DIP 14-SOP 14-DIP 14-SOP Operating Temperature 0 ~ + 70oC -25 ~ + 85oC LM348/LM248 LM348/LM248 DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: Life support devices or systems are devices or systems which, a are intended for surgical implant into the body, or b support or sustain life, and c whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. 6/1/01 0.0m 001 2001 Fairchild Semiconductor Corporation

PDF Datasheet Preview

LM348/LM248

Quad Operational Amplifier
• LM741 OP Amp operating characteristics
• Low supply current drain
• Class AB output stage no crossover distortion
• Pin compatible with the LM324/LM248
• Low input offset voltage 1mV Typ.
• Low input offset current 4nA Typ.
• Low input bias current 30nA Typ.
• Gain bandwidth unity gain 1.0MHz Typ.
• High degree of isolation between amplifiers 120dB
• Overload protection for inputs and outputs

TheLM348/LM248 is a true quad LM741. It consists of four independent, high-gain, internally compensated, low power operational amplifiers which have been designed to provide functional characteristics identical to those of the familiar LM741 operational amplifier. In addition the total supply current for all four amplifiers is comparable to the supply current of a single LM741 type OP Amp. Other features include input offset currents and input bias current which are much less than those of a standard LM741. Also, excellent isolation between amplifiers has been achieved by independently biasing each amplifier and using layout techniques which minimize thermal coupling.
14-DIP

Internal Block Diagram
1 14-SOP
2001 Fairchild Semiconductor Corporation

LM348/LM248

Schematic Diagram

One Section Only

Absolute Maximum Ratings

Parameter Supply Voltage Differential Input Voltage Input Voltage Output Short Circuit Duration Operating Temperature LM348 LM248 Storage Temperature

Symbol VCC

VI DIFF VI -

TOPR

TSTG

Value ±18 36 ±18 Continuous
0 ~ +70 -25 ~ +85 - 65~ +150

Unit V -

LM348/LM248

Electrical Characteristics

VCC =15V, VEE= -15V, TA=25 °C, unless otherwise specified

Parameter

Conditions

Input Offset Voltage

Note 1

Input Offset Current

Note 1

Input Bias Current

Input Resistance Supply Current all Amplifiers

Large Signal Voltage Gain

Channel Separation Common Mode Input Voltage Range Small Signal Bandwidth Phase Margin Note2 Slew Rate Note2 Output Short Circuit Current

Output Voltage Swing

Common Mode Rejection Ratio Power Supply Rejection Ratio

IBIAS RI ICC GV CS

VI R BW MPH SR ISC VO P-P

CMRR PSRR

Note 1

Note 1 f = 1KHz to 20KHz

Note 1
Ordering Information

Product Number LM348N LM348M LM248N LM248M

Package 14-DIP 14-SOP 14-DIP 14-SOP

Operating Temperature 0 ~ + 70oC -25 ~ + 85oC

LM348/LM248

LM348/LM248

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

LIFE SUPPORT POLICY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein:

Life support devices or systems are devices or systems which, a are intended for surgical implant into the body, or b support or sustain life, and c whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user.

A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
6/1/01 0.0m 001 2001 Fairchild Semiconductor Corporation

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived LM348N Datasheet file may be downloaded here without warranties.

Datasheet ID: LM348N 634296