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LM101AJAN Operational Amplifiers Literature Number: SNOSAJ8
The LM101A is a general purpose operational amplifier which features improved performance over industry stan- dards such as 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 Input current 100 nA maximum over temperature Offset current 20 nA maximum over temperature 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.
Features
n Offset voltage 3 mV maximum over temperature n Input current 100 nA maximum over temperature n Offset current 20 nA maximum over temperature n Guaranteed drift characteristics n Offsets guaranteed over entire common mode and supply voltage ranges n Slew rate of 10 V/µS as a summing amplifier
Ordering Information
NS Part Number SMD Part Number NS Package Number Package Description JL101ABGA JM38510/10103BGA H08C 8LD Metal Can JL101ABPA JM38510/10103BPA J08A 8LD CERDIP JL101ABHA JM38510/10103BHA W10A 10LD CERPACK JL101ABCA JM38510/10103BCA J14A 14LD CERDIP JL101ASGA JM38510/10103SGA H08C 8LD Metal Can JL101ASPA JM38510/10103SPA J08A 8LD CERDIP January 2006 LM101AJAN Operational Amplifiers © 2006 National Semiconductor Corporation DS201296 www.national.com
Schematic (Note 8) 20129601 Connection Diagrams (Top View) Metal Can Package (Top View) Dual-In-Line Package 20129602 Note: Pin 4 connected to case. See NS Package Number H08C 20129604 See NS Package Number J08A LM101AJAN www.national.com 2
Connection Diagrams (Continued) (Top View) Dual-In-Line Package (Top View) Ceramic Flatpack Package 20129603 See NS Package Number J14A 20129640 See NS Package Number W10A Fast AC/DC Converter 20129633 Note 1: Feedforward compensation can be used to make a fast full wave rectifier without a filter. LM101AJAN www.national.com3
Absolute Maximum Ratings(Note 2) Supply Voltage ±22V Differential Input Voltage ±30V Input Voltage (Note 3) ±15V Output Short Circuit Duration Continuous Operating Ambient Temp. Range −55˚C ≤ T A ≤ +125˚C TJ Max 150˚C Power Dissipation at T A = 25˚C (Note 4) H-Package (Still Air) 750 mW (500 LF / Min Air Flow) 1,200 mW J8-Package (Still Air) 1,000 mW (500 LF / Min Air Flow) 1,500 mW J14-Package (Still Air) 1,200mW (500 LF / Min Air Flow) 2,000mW W-Package (Still Air) 500mW (500 LF / Min Air Flow) 800mW Thermal Resistance θJA H-Package (Still Air) 165˚C/W (500 LF / Min Air Flow) 89˚C/W J8-Package (Still Air) 128˚C/W (500 LF / Min Air Flow) 75˚C/W J14-Package (Still Air) 98˚C/W (500 LF / Min Air Flow) 59˚C/W W-Package (Still Air) 233˚C/W (500 LF / Min Air Flow) 155˚C/W θJC (Typical) H-Package 39˚C/W J8-Package 26˚C/W J14-Package 24˚C/W W-Package 26˚C/W Storage Temperature Range −65˚C ≤ TA ≤ +150˚C Lead Temperature (Soldering, 10 sec.) 300˚C ESD Tolerance (Note 5) 3000V LM101AJAN www.national.com 4
Quality Conformance Inspection Mil-Std-883, Method 5005 - Group A Subgroup Description Temp (˚C)
1 Static tests at 25
2 Static tests at 125
3 Static tests at -55
4 Dynamic tests at 25
5 Dynamic tests at 125
6 Dynamic tests at -55
7 Functional tests at 25
8A Functional tests at 125 8B Functional tests at -55
9 Switching tests at 25
10 Switching tests at 125
11 Switching tests at -55
The following conditions apply to all parameters, unless otherwise specified VCC = ±20V, VCM = 0V, RS =5 0Ω Symbol Parameters Conditions Notes Min Max Unit Sub- groups VIO Input Offset Voltage +V CC = 35V, -VCC = -5V, VCM = -15V -2.0 +2.0 mV 1 -3.0 +3.0 mV 2, 3 +VCC = 5V, -VCC = -35V, VCM = +15V -2.0 +2.0 mV 1 -3.0 +3.0 mV 2, 3 VCM = 0V -2.0 +2.0 mV 1 -3.0 +3.0 mV 2, 3 +VCC = 5V, -VCC = -5V, VCM =0 V -2.0 +2.0 mV 1 -3.0 +3.0 mV 2, 3 IIO Input Offset Current +V CC = 35V, -VCC = -5V, VCM = -15V, RS = 100KΩ -10 +10 nA 1, 2 -20 +20 nA 3 +VCC = 5V, -VCC = -35V, VCM = +15V, RS = 100KΩ -10 +10 nA 1, 2 -20 +20 nA 3 VCM = 0V, RS = 100KΩ -10 +10 nA 1, 2 -20 +20 nA 3 +VCC = 5V, -VCC = -5V, VCM = 0V, RS = 100KΩ -10 +10 nA 1, 2 -20 +20 nA 3 ±IIB Input Bias Current +V CC = 35V, -VCC = -5V, VCM = -15V, RS = 100KΩ -0.1 75 nA 1, 2 -0.1 100 nA 3 +VCC = 5V, -VCC = -35V, VCM = +15V, RS = 100KΩ -0.1 75 nA 1, 2 -0.1 100 nA 3 VCM = 0V, RS = 100KΩ -0.1 75 nA 1, 2 -0.1 100 nA 3 +VCC = 5V, -VCC = -5V, VCM = 0V, RS = 100KΩ -0.1 75 nA 1, 2 -0.1 100 nA 3 +PSRR Power Supply Rejection Ratio +V CC = 10V, -VCC = -20V -50 +50 µV/V 1 -100 +100 µV/V 2, 3 -PSRR Power Supply Rejection Ratio +V CC = 20V, -VCC = -10V -50 +50 µV/V 1 -100 +100 µV/V 2, 3 LM101AJAN www.national.com5
DC Parameters (Continued) The following conditions apply to all parameters, unless otherwise specified VCC = ±20V, VCM = 0V, RS =5 0Ω Symbol Parameters Conditions Notes Min Max Unit Sub- groups CMRR Common Mode Rejection Ratio V CC = ±35V to ±5V, VCM = ±15V 80 dB 1, 2, 3 +VIO Adj Adjustment for Input Offset Voltage 4.0 mV 1, 2, 3 -VIO Adj Adjustment for Input Offset Voltage -4.0 mV 1, 2, 3 +IOS Output Short Circuit Current +V CC = 15V, -VCC = -15V, t ≤ 25mS, VCM = -15V -60 mA 1, 2, 3 -IOS Output Short Circuit Current +V CC = 15V, -VCC = -15V, t ≤ 25mS, VCM = +15V +60 mA 1, 2, 3 ICC Power Supply Current +V CC = 15V, -VCC = -15V 3.0 mA 1 2.32 mA 2 3.5 mA 3 ∆VIO / ∆T Temperature Coefficient of Input Offset Voltage -55˚C ≤ TA ≤ +25˚C (Note 6) -18 +18 µV/˚C 2 +25˚C ≤ TA ≤ +125˚C (Note 6) -15 +15 µV/˚C 3 ∆ IIO / ∆T Temperature Coefficient of Input Offset Current -AVS Large Signal (Open Loop) Voltage Gain RL =2 KΩ,V O = -15V (Note 7) 50 V/mV 4 (Note 7) 25 V/mV 5, 6 RL = 10KΩ,V O = -15V (Note 7) 50 V/mV 4 (Note 7) 25 V/mV 5, 6 +AVS Large Signal (Open Loop) Voltage Gain RL =2 KΩ,V O = +15V (Note 7) 50 V/mV 4 (Note 7) 25 V/mV 5, 6 RL = 10KΩ,V O = +15V (Note 7) 50 V/mV 4 (Note 7) 25 V/mV 5, 6 AVS Large Signal (Open Loop) Voltage Gain VCC = ±5V, RL =2 KΩ, VO = ±2V (Note 7) 10 V/mV 4, 5, 6 VCC = ±5V, RL = 10KΩ, VO = ±2V (Note 7) 10 V/mV 4, 5, 6 +VOP Output Voltage Swing R L = 10KΩ,V CM = -20V +16 V 4, 5, 6 RL =2 KΩ,V CM = -20V +15 V 4, 5, 6 -VOP Output Voltage Swing R L = 10KΩ,V CM = 20V -16 V 4, 5, 6 RL =2 KΩ,V CM = 20V -15 V 4, 5, 6 AC Parameters The following conditions apply to all parameters, unless otherwise specified VCC = ±20V, VCM = 0V, RS =5 0Ω Symbol Parameter Conditions Notes Min Max Units Sub- groups +SR Slew Rate A V =1 ,V I = -5V to +5V 0.3 V/µS 7 -SR Slew Rate A V =1 ,V I = +5V to -5V 0.3 V/µS 7 TRTR Rise Time A V =1 ,V I = 50mV 800 nS 7 TROS Overshoot A V =1 ,V I = 50mV 25 % 7 NIBB Noise Broadband BW = 10Hz to 5KHz, R S =0 Ω 15 µV RMS 7 NIPC Noise Popcorn BW = 10Hz to 5KHz, RS = 100KΩ 80 µV PK 7 LM101AJAN www.national.com 6
DC Parameters: Drift Values The following conditions apply to all parameters, unless otherwise specified VCC = ±20V, VCM = 0V, RS =5 0Ω Delta calculations performed on JAN S devices at group B, Subgroup 5 only. Symbol Parameter Conditions Notes Min Max Units Sub- groups VIO Input Offset Voltage V CM = 0V -0.5 0.5 mV 1 ± IIB Input Bias Current V CM = 0V, RS = 100KΩ -7.5 7.5 nA 1 Notes Note 2: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating ratings indicate conditions for which the device is intended to be functional, but do no guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated u nder the listed test conditions. Note 3: For supply voltages less than ±15V, the absolute maximum input voltage is equal to the supply voltage. Note 4: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJmax (maximum junction temperature), θJA (package junction to ambient thermal resistance), and T A (ambient temperature). The maximum allowable power dissipation at any temperature is P Dmax =( TJmax −T A)/ θJA or the number given in the Absolute Maximum Ratings, whichever is lower. Note 5: Human body model, 100 pF discharged through 1.5 k Ω. Note 6: Calculated parameter Note 7: Datalog reading of K = V/mV. Note 8: Pin connections shown are for 8-pin packages. LM101AJAN www.national.com7
Typical Performance Characteristics LM101A Input Voltage Range Output Swing 20129641 20129642 Voltage Gain 20129643 Supply Current Voltage Gain 20129647 20129648 LM101AJAN www.national.com 8
Typical Performance Characteristics LM101A (Continued) Maximum Power Dissipation Input Current, LM101A 20129649 20129650 Current Limiting Input Noise Voltage 20129651 20129652 Input Noise Current Common Mode Rejection 20129653 20129654 LM101AJAN www.national.com9
Typical Performance Characteristics LM101A (Continued) Power Supply Rejection Closed Loop Output Impedance 20129655 20129656 LM101AJAN www.national.com 10
Typical Performance Characteristics for Various Compensation Circuits (Note 8) Single Pole Compensation Two Pole Compensation 20129608 CS=3 0p F 20129612 CS=3 0p F C 2=1 0C 1 Feedforward Compensation Open Loop Frequency Response 20129616 fo= 3 MHz 20129609 Open Loop Frequency Response Open Loop Frequency Response 20129613 20129617 LM101AJAN www.national.com11
Typical Performance Characteristics for Various Compensation Circuits (Note 8) (Continued) Large Signal Frequency Response Large Signal Frequency Response 20129610 20129614 Large Signal Frequency Response Voltage Follower Pulse Response 20129618 20129611 Voltage Follower Pulse Response Inverter Pulse Response 20129615 20129619 LM101AJAN www.national.com 12
Typical Applications (Note 8) Variable Capacitance Multiplier 20129620 Simulated Inductor 20129621 L . R1 R2 C1 RS =R 2 RP =R 1 Fast Inverting Amplifier with High Input Impedance 20129622 Inverting Amplifier with Balancing Circuit 20129623 †May be zero or equal to parallel combination of R1 and R2 for minimum offset. Sine Wave Oscillator 20129624 fo =1 0k H z Integrator with Bias Current Compensation 20129625 *Adjust for zero integrator drift. Current drift typically 0.1 nA/˚C over −55˚C to +125˚C temperature range. LM101AJAN www.national.com13
Application Hints(Note 8) Protecting Against Gross Fault Conditions 20129626 *Protects input †Protects output ‡Protects output — not needed when R4 is used. Compensating for Stray Input Capacitances or Large Feedback Resistor 20129627 Isolating Large Capacitive Loads 20129628 LM101AJAN www.national.com 14
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 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 amplifier 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 8) Standard Compensation and Offset Balancing Circuit 20129629 Fast Voltage Follower 20129631 Power Bandwidth: 15 kHz Slew Rate: 1V/µs Fast Summing Amplifier 20129630 Power Bandwidth: 250 kHz Small Signal Bandwiidth: 3.5 MHz Slew Rate: 10V/µs LM101AJAN www.national.com15
Typical Applications(Note 8) (Continued) Bilateral Current Source 20129632 R 3=R 4+R 5 R 1=R 2 Fast AC/DC Converter(Note 9) 20129633 Note 9: Feedforward compensation can be used to make a fast full wave rectifier without a filter. LM101AJAN www.national.com 16
Typical Applications(Note 8) (Continued) Instrumentation Amplifier 20129634 R1 = R4; R2 = R3 *,† Matching determines CMRR. Integrator with Bias Current Compensation 20129635 *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 20129637 LM101AJAN www.national.com17
Typical Applications(Note 8) (Continued) Low Frequency Square Wave Generator 20129636 Low Drift Sample and Hold 20129638 *Polycarbonate-dielectric capacitor Voltage Comparator for Driving DTL or TTL Integrated Circuits 20129639 LM101AJAN www.national.com 18
Revision Section Originator Changes 01/05/06 A New Release to corporate format L. Lytle 1 MDS datasheets converted into one Corp. datasheet format. MJLM101A-X Rev 1A0 datasheet will be archived. LM101AJAN www.national.com19
Physical Dimensions inches (millimeters) unless otherwise noted Metal Can Package (H) Ceramic Dual-In-Line Package (J) LM101AJAN www.national.com 20
Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Ceramic Dual-In-Line Package (J) Ceramic Flatpack Package (W) LM101AJAN www.national.com21
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