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UNISONIC TECHNOLOGIES CO., LTD
LM318
HIGH SPEED OPERATIONAL AMPLIFIER
DESCRIPTION
The UTC LM318 is a precision, high speed, high gain operational amplifier that has been specifically designed for use in high slew rate and wide bandwidth applications. Unlike many wideband amplifiers, the UTC LM318 is unity-gain stable since it has internal circuitry for frequency compensation. However, external components may be added for compensation to achieve optimum performance. When used in inverting applications, feed-forward compensation can be used to achieve slew rate in excess of 150V/s and almost double the bandwidth. For greater stability, using overcompensation with the amplifier is possible if maximum bandwidth is not needed. In general, by adding a single capacitor can reduce the settling time for 0.1% error band to under 1s. The typical applications of UTC LM318 include A/D converters, fast integrator, oscillators, active filters, sample and hold circuits, or general purpose amplifiers.
LINEAR INTEGRATED CIRCUIT
*Pb-free plating product number: LM318L
FEATURES
* Unit gain stable (internal frequency compensation) * 4mV typical input offset voltage * 30nA typical input offset current * Input bias current of 250nA (maximum) * 15MHz bandwidth (small signal) * 50V/s slew rate (guarantee) * Operates voltages of 5V to 20V * Overload protection for Input and output * Same pin assignment as general-purpose op amps
ORDERING INFORMATION
Order Number Normal Lead Free Plating LM318-D08-T LM318L-D08-T LM318-S08-R LM318L-S08-R LM318-S08-T LM318L-S08-T Package DIP-8 SOP-8 SOP-8 Packing Tube Tape Reel Tube
www.unisonic.com.tw Copyright (c) 2005 Unisonic Technologies Co., Ltd
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LM318
PIN CONFIGURATIONS
LINEAR INTEGRATED CIRCUIT
COMP-1 ININ+
1 2 3 4
8 7 6 5
COMP-2
VCC+
OUTPUT COMP-3
VCC-
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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LM318
SCHEMATIC DIAGRAM
LINEAR INTEGRATED CIRCUIT
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www.unisonic.com.tw
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ABSOLUTE MAXIMUM RATINGS
LINEAR INTEGRATED CIRCUIT
PARAMETER SYMBOL RATINGS UNIT Supply Voltage VCC+ +20 V Supply Voltage VCC-20 V Input Voltage (Note 2) VIN 15 V Differential Input Current (Note 3) II(DIFF) 10 mA Power Dissipation PD 500 mW Output Short-Circuit Duration Continuous Maximum Junction Temperature TJ 110 C Operating Temperature Range TOPR 0 ~ +70 C Storage Temperature Range TSTG -65 ~ +150 C Note:1.Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. 2.For supply voltage less than 15V, the absolute maximum input voltage is equal to the supply voltage. 3.The inputs are shunted with two opposite-facing base-emitter diodes for over voltage protection. Therefore, excessive current flows if a differential input voltage in excess of 1V is applied between the inputs unless some limiting resistance is used.
ELECTRICAL CHARACTERISTICS (5V VCC 20V, 0CTA+70C, unless other specifics)
PARAMETER Input Voltage Range Output Voltage Swing Input Offset Voltage Large Signal Voltage Gain SYMBOL TEST CONDITION VIN VCC=15V VOUT VCC =15V, RL=2K TA=25C VI(OFF) GV TA=25C, VCC =15V VOUT=10V, RL2K Vcc =15V, VOUT=10V, RL2K TA=25C MIN 11.5 12 TYP 13 4 200 30 200 300 500 750 10 MAX UNIT V V mV mV V/mV
10 15
25 20
V/mV nA Input Offset Current II(OFF) nA TA=25C 150 nA Input Bias Current II(BIAS) nA Supply Current ISS TA=25C 5 mA Input Resistance RS TA=25C 0.5 3 M Slew Rate SR TA=25C, VCC =15V, Gv=1 50 70 V/s Small Signal Bandwidth SBW TA=25C, VCC =15V 15 MHz Common Mode Rejection Ratio CMRR 70 100 dB Supply Voltage Rejection Ratio SVRR 65 80 dB Note: These power supplies must be bypassed with 0.1F(or larger) disc ceramic capacitor within an inch of the device.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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LM318
TYPICAL CHARACTERISTICS
Input Current 190 150 100 50 0 40 30 20 10 0 10 20 30 40 50 60 70
OFFSET BIAS
LINEAR INTEGRATED CIRCUIT
Voltage Gain 115
TA=25
110
105
100
95 5 10 15 20 Supply Voltage (V)
Temperature ()
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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TYPICAL CHARACTERISTICS(Cont.)
Input Current 600 Power Dissipation, PD(mW) -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 400
Input Current (nA)
LINEAR INTEGRATED CIRCUIT
Power Dissipation vs Ambient Temperature . 600 500 400 300 200 100 0
200 0 -200 -400 -600 -0.8
0
20
40
60
80 100
120 140
Differential Input (V)
Ambient Temperature(C)
UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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