www.fairchildsemi.com LM348/LM248 Quad Operational Amplifier Features Description • LM741 OP Amp operating characteristics TheLM348/LM248 is a true quad LM741. It consists of four • Low supply current drain independent, high-gain, internally compensated, low power • Class AB output stage no crossover distortion operational amplifiers which have been designed to provide • Pin compatible with the LM324/LM248 functional characteristics identical to those of the familiar • Low input offset voltage : 1mV Typ. LM741 operational amplifier. In addition the total supply • Low input offset current : 4nA Typ. current for all four amplifiers is comparable to the supply • Low input bias current : 30nA Typ. current of a single LM741 type OP Amp. Other features • Gain bandwidth (unity gain): 1.0MHz Typ. include input offset currents and input bias current which are • High degree of isolation between amplifiers: 120dB much less than those of a standard LM741. Also, excellent • Overload protection for inputs and outputs isolation between amplifiers has been achieved by independently biasing each amplifier and using layout techniques which minimize thermal coupling. 14-DIP 1 14-SOP 1 Internal Block Diagram Rev. 1.0.1 ©2001 Fairchild Semiconductor Corporation

LM348/LM248 Schematic Diagram (One Section Only) Absolute Maximum Ratings Parameter Symbol Value Unit Supply Voltage VCC ±18 V Differential Input Voltage VI(DIFF) 36 V Input Voltage VI ±18 V Output Short Circuit Duration - Continuous - Operating Temperature LM348 TOPR 0 ~ +70 °C LM248 -25 ~ +85 Storage Temperature TSTG - 65~ +150 °C 2

LM348/LM248 Electrical Characteristics (VCC =15V, VEE= -15V, TA=25 °C, unless otherwise specified) LM248 LM348 Parameter Symbol Conditions Unit Min. Typ. Max. Min. Typ. Max. RS≤10KΩ - 1 6.0 - 1 6.0 Input Offset Voltage VIO mV Note 1 - - 7.5 - - 7.5 - 4 50 - 4 50 Input Offset Current IIO nA Note 1 - - 125 - - 100 - 30 200 - 30 200 Input Bias Current IBIAS nA Note 1 - - 500 - - 400 Input Resistance RI - 0.8 2.5 - 0.8 2.5 - MΩ Supply Current (all Amplifiers) ICC - - 2.4 4.5 - 2.4 4.5 mA RL≥2KΩ 25 160 - 25 160 - Large Signal Voltage Gain GV V/mV Note 1 15 - - 15 - - Channel Separation CS f = 1KHz to 20KHz - 120 - - 120 - dB Common Mode Input VI(R) Note 1 ±12 - - ±12 - - V Voltage Range Small Signal Bandwidth BW GV = 1 - 1.0 - - 1.0 - MHz Phase Margin (Note2) MPH GV = 1 - 60 - - 60 - Degree Slew Rate (Note2) SR GV = 1 - 0.5 - - 0.5 - V/µs Output Short Circuit Current ISC - - 25 - - 25 - mA RL≥10KΩ Note 1 ±12 ±13 - ±12 ±13 - Output Voltage Swing VO(P-P) V RL≥2KΩ ±10 ±12 - ±10 ±12 - Common Mode Rejection CMRR RS≥10KΩ Note 1 70 90 - 70 90 - dB Ratio Power Supply Rejection Ratio PSRR RS≥10KΩ Note 1 77 96 - 77 96 - dB Note : 1. LM348: 0 ≤ TA ≤ +70 °C , LM248: -25 ≤ TA ≤ +85 °C 2. Guaranteed by design. 3

LM348/LM248 Typical Performance Characteristics Supply Voltage (V) Supply Voltage (V) Figure 1.Supply Current vs Supply voltage Figure 2.Output Voltage Swing vs Supply voltage Sink Current (mA) Source Current (mA) Figure 3.Output voltage swing vs Source Current (mA) Figure 4.Output voltage swing vs Sink Current (mA) Frequency (Hz) Frequency (Hz) Figure 5.Output Impedance vs Frequency Figure 6.Common-mode Rejection Ratio vs Frequency 4

LM348/LM248 Typical Performance Characteristics (continued) Figure 7.Open Loop Frequency Response Figure 8.Bode Plot Figure 9.Large Signal Pulse Response Figure 10.Small Signal Pulse Response Figure 11.Undistorted Output Voltage Swing vs Frequency Figure 12.Inverting Large Signal Pulse Response 5

LM348/LM248 Typical Performance Characteristics (continued) Figure 13.Input Noise Voltage And Noise Current vs Fre- Figure 14.Positive Common Mode Input Voltage Limit quency vs Positiue Supply Voltage Figure 15.Negative Common.mode Input Voltage Limit vs Negative Supply Voltage 6

LM348/LM248 Mechanical Dimensions Package 14-DIP 06..24502 ± ±00.2.0008 2.08)0.082 ( #1 #14 4 4 ±6 0.10 ±8 0.00 ±0 0.10 ±9 0.00 4 1 5 5 0. 0.0 1. 0.0 19.80MAX0.780 ±19.40 0.20 ±0.764 0.008 2.540.100 #7 #8 7.62 0.300 3.25 ±0.20 0.20 MIN 0.128 ±0.008 0.008 5.08 3.30 ±0.30 MAX 0.200 0.130 ±0.012 +0.10 0.25–0.05 +0.004 0~15° 0.010–0.002 7

LM348/LM248 Mechanical Dimensions Package 14-SOP 0.05 MIN 0.002 1.55 ±0.10 0.061 ±0.004 0.47)0.019 ( #1 #14 X 8 8.70MA0.343 ±8.56 0.20 ±0.337 0.00 +0.100.406-0.05 +0.0040.016-0.002 #7 #8 06.2.0306 ±±00..30012 01..08701 MAX 1.270.050 +0.100.20-0.05 +0.004008-0.002 03.1.9556 ±±00..20008 AX0.10 AX0.004 0. M M 5.72 ° 8 ~ 0.225 0 0.60 ±0.20 0.024 ±0.008 8

LM348/LM248 Ordering Information Product Number Package Operating Temperature LM348N 14-DIP 0 ~ + 70oC LM348M 14-SOP LM248N 14-DIP -25 ~ + 85oC LM248M 14-SOP 9

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: 1. Life support devices or systems are devices or systems 2. A critical component in any component of a life support which, (a) are intended for surgical implant into the body, device or system whose failure to perform can be or (b) support or sustain life, and (c) whose failure to reasonably expected to cause the failure of the life support perform when properly used in accordance with device or system, or to affect its safety or effectiveness. instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. www.fairchildsemi.com 6/1/01 0.0m 001 Stock#DSxxxxxxxx  2001 Fairchild Semiconductor Corporation

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