LM101W

LM101A_00 NSC | Alldatasheet

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The LM101A series are general purpose operational ampli- fiers which feature improved performance over industry stan- dards like the LM709. Advanced processing techniques make possible an order of magnitude reduction in input currents, and a redesign of the biasing circuitry reduces the temperature drift of input current. Improved specifications include:  Offset voltage 3 mV maximum over temperature (LM101A/LM201A)  Input current 100 nA maximum over temperature (LM101A/LM201A)  Offset current 20 nA maximum over temperature (LM101A/LM201A)  Guaranteed drift characteristics  Offsets guaranteed over entire common mode and sup- ply voltage ranges  Slew rate of 10V/µs as a summing amplifier This amplifier offers many features which make its appli- cation nearly foolproof: overload protection on the input and output, no latch-up when the common mode range is exceeded, and freedom from oscillations and compensa- tion with a single 30 pF capacitor. It has advantages over internally compensated amplifiers in that the frequency compensation can be tailored to the particular applica- tion. For example, in low frequency circuits it can be overcompensated for increased stability margin. Or the compensation can be optimized to give more than a factor of ten improvement in high frequency performance for most applications. In addition, the device provides better accuracy and lower noise in high impedance circuitry. The low input currents also make it particularly well suited for long interval integrators or timers, sample and hold circuits and low frequency waveform generators. Further, replac- ing circuits where matched transistor pairs buffer the inputs of conventional IC op amps, it can give lower offset voltage and a drift at a lower cost. The LM101A is guaranteed over a temperature range of −55˚C to +125˚C, the LM201A from −25˚C to +85˚C, and the LM301A from 0˚C to +70˚C. Fast AC/DC Converter 00775233 Note 1: Feedforward compensation can be used to make a fast full wave rectifier without a filter. August 2000 LM101A/LM201A/LM301A Operational Amplifiers © 2004 National Semiconductor Corporation DS007752 www.national.com

Absolute Maximum Ratings(Note 2) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. LM101A/LM201A LM301A Supply Voltage ±22V ±18V Differential Input Voltage ±30V ±30V Input Voltage (Note 3) ±15V ±15V Output Short Circuit Duration (Note 4) Continuous Continuous Operating Ambient Temp. Range −55˚C to +125˚C (LM101A) 0˚C to +70˚C −25˚C to +85˚C (LM201A) T J Max H-Package 150˚C 100˚C N-Package 150˚C 100˚C J-Package 150˚C 100˚C Power Dissipation at T A = 25˚C H-Package (Still Air) 500 mW 300 mW (400 LF/Min Air Flow) 1200 mW 700 mW N-Package 900 mW 500 mW J-Package 1000 mW 650 mW Thermal Resistance (Typical) θ jA H-Package (Still Air) 165˚C/W 165˚C/W (400 LF/Min Air Flow) 67˚C/W 67˚C/W N Package 135˚C/W 135˚C/W J-Package 110˚C/W 110˚CmW (Typical) θ jC H-Package 25˚C/W 25˚C/W Storage Temperature Range −65˚C to +150˚C −65˚C to +150˚C Lead Temperature (Soldering, 10 sec.) Metal Can or Ceramic 300˚C 300˚C Plastic 260˚C 260˚C ESD Tolerance (Note 7) 2000V 2000V Electrical Characteristics(Note 5) TA=T J Parameter Conditions LM101A/LM201A LM301A Units Min Typ Max Min Typ Max Input Offset Voltage T A = 25˚C, RS ≤ 50 kΩ 0.7 2.0 2.0 7.5 mV Input Offset Current T A = 25˚C 1.5 10 3.0 50 nA Input Bias Current T A = 25˚C 30 75 70 250 nA Input Resistance T A = 25˚C 1.5 4.0 0.5 2.0 M Ω Supply Current T A = 25˚C V S = ±20V 1.8 3.0 mA VS = ±15V 1.8 3.0 mA Large Signal Voltage Gain T A = 25˚C, VS = ±15V 50 160 25 160 V/mV VOUT = ±10V, RL ≥ 2k Ω Input Offset Voltage R S ≤ 50 kΩ 3.0 10 mV Average Temperature Coefficient R S ≤ 50 kΩ 3.0 15 6.0 30 µV/˚C of Input Offset Voltage Input Offset Current 20 70 nA Average Temperature Coefficient 25˚C ≤ T A ≤ TMAX 0.01 0.1 0.01 0.3 nA/˚C of Input Offset Current T MIN ≤ TA ≤ 25˚C 0.02 0.2 0.02 0.6 nA/˚C Input Bias Current 0.1 0.3 µA LM101A/LM201A/LM301A www.national.com 2

Electrical Characteristics(Note 5) (Continued) TA=T J Parameter Conditions LM101A/LM201A LM301A Units Min Typ Max Min Typ Max Supply Current T A =T MAX,V S = ±20V 1.2 2.5 mA Large Signal Voltage Gain V S = ±15V, VOUT = ±10V 25 15 V/mV RL ≥ 2k Output Voltage Swing V S = ±15V R L =1 0k Ω ±12 ±14 ±12 ±14 V RL =2k Ω ±10 ±13 ±10 ±13 V Input Voltage Range V S = ±20V ±15 V Common-Mode Rejection Ratio R S ≤ 50 kΩ 80 96 70 90 dB Supply Voltage Rejection Ratio R S ≤ 50 kΩ 80 96 70 96 dB Note 2: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.Operating ratings indicate for which the device is functional, but do no guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditio ns which guarantee specific limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is giv en, however, the typical value is a good indication of device performance. Note 3: For supply voltages less than ±15V, the absolute maximum input voltage is equal to the supply voltage. Note 4: Continuous short circuit is allowed for case temperatures to 125˚C and ambient temperatures to 75˚C for LM101A/LM201A, and 70˚C and 55˚C respectively for LM301A. Note 5: Unless otherwise specified, these specifications apply for C1 = 30 pF,±5V ≤ VS ≤ ±20V and −55˚C≤ TA ≤ +125˚C (LM101A),±5V ≤ VS ≤ ±20V and −25˚C ≤ TA ≤ +85˚C (LM201A), ±5V ≤ VS ≤ ±15V and 0˚C ≤ TA ≤ +70˚C (LM301A). Note 6: Refer to RETS101AX for LM101A military specifications and RETS101X for LM101 military specifications. Note 7: Human body model, 100 pF discharged through 1.5 k Ω. Typical Performance Characteristics LM101A/LM201A Input Voltage Range Output Swing 00775241 00775242 LM101A/LM201A/LM301A www.national.com3

Typical Performance CharacteristicsLM101A/LM201A (Continued) Voltage Gain 00775243 Guaranteed Performance Characteristics LM301A Input Voltage Range Output Swing 00775244 00775245 Voltage Gain 00775246 LM101A/LM201A/LM301A www.national.com 4

Typical Performance Characteristics Supply Current Voltage Gain 00775247 00775248 Maximum Power Dissipation Input Current, LM101A/LM201A/LM301A 00775249 00775250 Current Limiting Input Noise Voltage 00775251 00775252 LM101A/LM201A/LM301A www.national.com5

Typical Performance Characteristics (Continued) Input Noise Current Common Mode Rejection 00775253 00775254 Power Supply Rejection Closed Loop Output Impedance 00775255 00775256 LM101A/LM201A/LM301A www.national.com 6

Typical Performance Characteristics for Various Compensation Circuits (Note 9) Single Pole Compensation Two Pole Compensation 00775208 CS=3 0p F 00775212 CS=3 0p F C 2=1 0C 1 Feedforward Compensation Open Loop Frequency Response 00775216 fo= 3 MHz 00775209 Open Loop Frequency Response Open Loop Frequency Response 00775213 00775217 LM101A/LM201A/LM301A www.national.com7

Typical Performance Characteristics for Various Compensation Circuits (Note 9) (Continued) Large Signal Frequency Response Large Signal Frequency Response 00775210 00775214 Large Signal Frequency Response Voltage Follower Pulse Response 00775218 00775211 Voltage Follower Pulse Response Inverter Pulse Response 00775215 00775219 LM101A/LM201A/LM301A www.national.com 8

Typical Applications (Note 9) Variable Capacitance Multiplier 00775220 Simulated Inductor 00775221 L . R1 R2 C1 RS =R 2 RP =R 1 Fast Inverting Amplifier with High Input Impedance 00775222 Inverting Amplifier with Balancing Circuit 00775223 †May be zero or equal to parallel combination of R1 and R2 for minimum offset. Sine Wave Oscillator 00775224 fo =1 0k H z Integrator with Bias Current Compensation 00775225 *Adjust for zero integrator drift. Current drift typically 0.1 nA/˚C over −55˚C to +125˚C temperature range. LM101A/LM201A/LM301A www.national.com9

Application Hints(Note 9) Protecting Against Gross Fault Conditions 00775226 *Protects input †Protects output ‡Protects output — not needed when R4 is used. Compensating for Stray Input Capacitances or Large Feedback Resistor 00775227 Isolating Large Capacitive Loads 00775228 Although the LM101A is designed for trouble free operation, experience has indicated that it is wise to observe certain precautions given below to protect the devices from abnor- mal operating conditions. It might be pointed out that the LM101A/LM201A/LM301A www.national.com 10

advice given here is applicable to practically any IC op amp, although the exact reason why may differ with different de- vices. When driving either input from a low-impedance source, a limiting resistor should be placed in series with the input lead to limit the peak instantaneous output current of the source to something less than 100 mA. This is especially important when the inputs go outside a piece of equipment where they could accidentally be connected to high voltage sources. Large capacitors on the input (greater than 0.1 µF) should be treated as a low source impedance and isolated with a resistor. Low impedance sources do not cause a problem unless their output voltage exceeds the supply voltage. How- ever, the supplies go to zero when they are turned off, so the isolation is usually needed. The output circuitry is protected against damage from shorts to ground. However, when the amplifier output is connected to a test point, it should be isolated by a limiting resistor, as test points frequently get shorted to bad places. Further, when the amplifer drives a load external to the equipment, it is also advisable to use some sort of limiting resistance to preclude mishaps. Precautions should be taken to insure that the power sup- plies for the integrated circuit never become reversed — even under transient conditions. With reverse voltages greater than 1V, the IC will conduct excessive cur- rent, fusing internal aluminum interconnects. If there is a possibility of this happening, clamp diodes with a high peak current rating should be installed on the supply lines. Rever- sal of the voltage between V + and V− will always cause a problem, although reversals with respect to ground may also give difficulties in many circuits. The minimum values given for the frequency compensation capacitor are stable only for source resistances less than 10 kΩ, stray capacitances on the summing junction less than 5 pF and capacitive loads smaller than 100 pF. If any of these conditions are not met, it becomes necessary to over- compensate the amplifier with a larger compensation capaci- tor. Alternately, lead capacitors can be used in the feedback network to negate the effect of stray capacitance and large feedback resistors or an RC network can be added to isolate capacitive loads. Although the LM101A is relatively unaffected by supply by- passing, this cannot be ignored altogether. Generally it is necessary to bypass the supplies to ground at least once on every circuit card, and more bypass points may be required if more than five amplifiers are used. When feed-forward compensation is employed, however, it is advisable to by- pass the supply leads of each amplifier with low inductance capacitors because of the higher frequencies involved. Typical Applications (Note 9) Standard Compensation and Offset Balancing Circuit 00775229 Fast Voltage Follower 00775231 Power Bandwidth: 15 kHz Slew Rate: 1V/µs Fast Summing Amplifier 00775230 Power Bandwidth: 250 kHz Small Signal Bandwiidth: 3.5 MHz Slew Rate: 10V/µs LM101A/LM201A/LM301A www.national.com11

Typical Applications(Note 9) (Continued) Bilateral Current Source 00775232 R 3=R 4+R 5 R 1=R 2 Fast AC/DC Converter(Note 8) 00775233 Note 8: Feedforward compensation can be used to make a fast full wave rectifier without a filter. LM101A/LM201A/LM301A www.national.com 12

Typical Applications(Note 9) (Continued) Instrumentation Amplifier 00775234 R1 = R4; R2 = R3 *,† Matching determines CMRR. Integrator with Bias Current Compensation 00775235 *Adjust for zero integrator drift. Current drift typically 0.1 nA/˚C over 0˚C to +70˚C temperature range. Voltage Comparator for Driving RTL Logic or High Current Driver 00775237 LM101A/LM201A/LM301A www.national.com13

Typical Applications(Note 9) (Continued) Low Frequency Square Wave Generator 00775236 Low Drift Sample and Hold 00775238 *Polycarbonate-dielectric capacitor Voltage Comparator for Driving DTL or TTL Integrated Circuits 00775239 LM101A/LM201A/LM301A www.national.com 14

Schematic (Note 9) 00775201 Note 9: Pin connections shown are for 8-pin packages. Connection Diagrams (Top View) Dual-In-Line Package 00775204 Order Number LM101AJ, LM101J/883(Note 10), LM201AN or LM301AN See NS Package Number J08A or N08E Ceramic Flatpack Package 00775240 Order Number LM101AW/883 or LM101W/883 See NS Package Number W10A LM101A/LM201A/LM301A www.national.com15

Connection Diagrams(Top View) (Continued) Metal Can Package 00775202 Note: Pin 4 connected to case. Order Number LM101AH, LM101AH/883(Note 10), LM201AH or LM301AH See NS Package Number H08C Dual-In-Line Package 00775203 Order Number LM101AJ-14/883(Note 10) See NS Package Number J14A Note 10: Available per JM38510/10103. LM101A/LM201A/LM301A www.national.com 16

Physical Dimensions inches (millimeters) unless otherwise noted Metal Can Package (H) Order Number LM101AH, LM101AH/883 LM201AH or LM301AH LM101A/LM201A/LM301A www.national.com17

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Ceramic Dual-In-Line Package (J) Order Number LM101J/883 or LM101AJ Ceramic Dual-In-Line Package (J) Order Number LM101AJ-14/883 LM101A/LM201A/LM301A www.national.com 18

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Molded Dual-In-Line Package (N) Order Number LM201AN or LM301AN Ceramic Flatpack Package (W) Order Number LM101AW/883 or LM101W/883 LM101A/LM201A/LM301A www.national.com19

NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. 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 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 to the user. 2. A critical component is 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. BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. National Semiconductor Americas Customer Support Center Email: new.feedback@nsc.com Tel: 1-800-272-9959 National Semiconductor Europe Customer Support Center Fax: +49 (0) 180-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 69 9508 6208 English Tel: +44 (0) 870 24 0 2171 Français Tel: +33 (0) 1 41 91 8790 National Semiconductor Asia Pacific Customer Support Center Email: ap.support@nsc.com National Semiconductor Japan Customer Support Center Fax: 81-3-5639-7507 Email: jpn.feedback@nsc.com Tel: 81-3-5639-7560 www.national.com LM101A/LM201A/LM301A Operational Amplifiers National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the righ t at any time without notice to change said circuitry and specifications.