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Technical content
Features
VS = 2.7V, T A = 25˚C, R L to V +/2, Typical values unless specified. n Rail-to-Rail Inputs n Rail-to-Rail Output Swing Within 35mV of Supplies (R L =2kΩ) n Packages Offered: n micro SMD package 1.39mm x 1.41mm n MSOP package 3.0mm x 4.9mm n Low Supply Current <1mA (max) n Shutdown Current 1µA (max) n Versatile Shutdown feature 10µs turn-on n Output Short Circuit Current 10mA n Offset Voltage ±5 mV (max) n Gain-Bandwidth 1MHz n Supply Voltage Range 2.7V-10V n THD 0.18% n Voltage Noise 36
Applications
n Portable Communication (voice, data) n Cellular Phone Power Amp Control Loop n Buffer AMP n Active Filters n Battery Sense n VCO Loop Connection Diagrams 8-Pin MSOP micro SMD 10124079 Top View 10124080 Top View May 2004 LMC8101 Rail-to-Rail Input and Output, 2.7V Op Amp in micro SMD package with Shutdown © 2004 National Semiconductor Corporation DS101240 www.national.com
Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. ESD Tolerance 2KV (Note 2) 200V (Note 13) V IN differential ±Supply Voltage Output Short Circuit Duration (Notes 3, 11) Supply Voltage (V + −V −) 12V Voltage at Input/Output pins V + +0.8V, V− −0.8V Current at Input Pin ±10mA Current at Output Pin (Notes 3, 12) ±80mA Current at Power Supply pins ±80mA Storage Temperature Range −65˚C to +150˚C Junction Temperature(Note 4) +150˚C Soldering Information Infrared or Convection (20 sec.) 235˚C Wave Soldering (10 sec.) 260˚C Operating Ratings (Note 1) Supply Voltage (V+ -V −) 2.7V to 10V Junction Temperature Range (Note 4) −40˚C to +85˚C Package Thermal Resistance ( θJA) (Note 4) micro SMD 220˚C/W MSOP pkg. 8 pin Surface Mount 230˚C/W 2.7V Electrical Characteristics Unless otherwise specified, all limits guaranteed for T J = 25˚C, V+ = 2.7V, V − = 0V, V CM =V O =V +/2 and RL > 1M Ω to V+/2. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions Typ (Note 5) Limit (Note 6) Units VOS Input Offset Voltage ±0.70 ±5 mV max TCVOS Input Offset Voltage Average Drift 4 µV/˚C IB Input Bias Current (Note 7) ±1 ±64 pA max IOS Input Offset Current 0.5 32 pA max Rin CM Input Common Mode Resistance 10 G Ω Cin CM Input Common Mode Capacitance 10 pF CMRR Common Mode Rejection Ratio 0V < =V CM < = 2.7V 78 60 dB minVS =3 V 0V < =V CM < =3 V 78 64 PSRR Power Supply Rejection Ratio V S = 2.7V to 3V 57 50 dB min CMVR Input Common-Mode Voltage Range V S = 2.7V CMRR > = 50dB 0.0 0.0 V max 3.0 2.7 V min VS =3 V CMRR > = 50dB −0.2 −0.1 V max 3.2 3.1 V min LMC8101 www.national.com 2
2.7V Electrical Characteristics (Continued) Unless otherwise specified, all limits guaranteed for T J = 25˚C, V+ = 2.7V, V − = 0V, V CM =V O =V +/2 and RL > 1M Ω to V+/2. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions Typ (Note 5) Limit (Note 6) Units AVOL Large Signal Voltage Gain Sourcing RL =2 kΩ to V+/2 VO = 1.35V to 2.45V 3162 1000
562 V/V
RL =2 kΩ to V+/2 VO = 1.35V to 0.25V 3162 804 562 Sourcing RL = 10kΩ to V+/2 VO = 1.35V to 2.65V 4000 1778
1000 V/V
RL = 10kΩ to V+/2 VO = 1.35V to 0.05V 4000 1778 1000 VO Output Swing High RL =2 kΩ to V+/2 VID = 100mV 2.67 2.64 2.62 V min RL = 10kΩ to V+/2 VID = 100mV 2.69 2.68 2.67 V min Output Swing Low RL =2 kΩ to V+/2 VID = −100mV 32 100 150 mV max RL = 10kΩ to V+/2 VID = −100mV 10 30 mV max ISC Output Short Circuit Current Sourcing to V +/2 VID = 100mV (Note 11) 20 14 mA min Sinking to V+/2 VID = −100mV (Note 11) 10 5 mA min IS Supply Current No load, normal operation 0.70 1.0 1.2 mA max Shutdown mode 0.001 1 µA max Ton Shutdown Turn-on time (Note 9) 10 15 µs Toff Shutdown Turn-off time (Note 9) 1 µs Iin "SL" and "SD" Input Current ±1 ±64 pA max SR Slew Rate (Note 8) A V = +1, R L = 10kΩ to V+/2 VI=1 VPP 1 0.8 V/µs min fu Unity Gain-Bandwidth V I = 10mV, R L =2 kΩ to V+/2 750 KHz GBW Gain Bandwidth Product f = 100KHz 1 MHz e n Input-Referred Voltage Noise f = 10KHz, R S =5 0Ω 36 in Input-Referred Current Noise f = 10KHz 1.5 THD Total Harmonic Distortion f = 1KHz, AV = +1, VO = 2.2Vpp, RL = 600Ω to V+/2 0.18 % LMC8101 www.national.com3
±5V Electrical Characteristics Unless otherwise specified, all limits guaranteed for T J = 25˚C, V+ =5V, V− = −5V, V CM =V O = 0V, and R L > 1M Ω to gnd. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions Typ (Note 5) Limit (Note 6) Units VOS Input Offset Voltage ±0.7 ±5 mV max TCVos Input Offset Voltage Average Drift 4 µV/˚C IB Input Bias Current (Note 7) ±1 ±64 pA max IOS Input Offset Current 0.5 32 pA max Rin CM Input Common Mode Resistance 10 G Ω Cin CM Input Common Mode Capacitance 10 pF CMRR Common-Mode Rejection Ratio −5V < =V CM < =5 V 8 7 7 0 dB min PSRR Power Supply Rejection Ratio V S = 5V to 10V 80 76 dB min CMVR Input Common-Mode Voltage Range CMRR ≥ 50 dB −5.3 −5.2 −5.0 V max 5.3 5.2 5.0 V min AVOL Large Signal Voltage Gain Sourcing RL = 600Ω VO =0 Vt o4 V 34.5 17.8
10 V/mV
RL = 600Ω VO =0 Vt o− 4 V 34.5 17.8 3.16 Sourcing RL =2 kΩ VO = 0V to 4.6V 138 31.6
17.8 V/mV
RL =2 kΩ VO = 0V to −4.6V 138 31.6 VO Output Swing High RL = 600Ω VID = 100mV 4.73 4.60 4.54 V min RL =2 kΩ VID = 100mV 4.90 4.85 4.83 V min Output Swing Low RL = 600Ω VID = −100mV −4.85 −4.75 −4.65 V max RL =2 kΩ VID = −100mV −4.95 4.90 −4.84 V max ISC Output Short Circuit Current Sourcing, V ID = 100mV (Note 3),(Note 11) 49 30 mA min Sinking, VID = −100mV (Note 3),(Note 11) 90 60 mA min IS Supply Current No load, normal operation 1.1 1.7 1.9 mA max Shutdown mode 0.001 1 µA Ton Shutdown Turn-on time (Note 9) 10 15 µs Toff Shutdown Turn-off time (Note 9) 1 µs Iin "SL" and "SD" Input Current ±1 ±64 pA max LMC8101 www.national.com 4
±5V Electrical Characteristics (Continued) Unless otherwise specified, all limits guaranteed for T J = 25˚C, V+ =5V, V− = −5V, V CM =V O = 0V, and R L > 1M Ω to gnd. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions Typ (Note 5) Limit (Note 6) Units SR Slew Rate (Note 8) AV = +10, R L = 10kΩ, VO = 10Vpp, C L = 1000pF
1.2 V/µs
fu Unity Gain-Bandwidth V I = 10mV RL =2 kΩ
840 KHz
GBW Gain Bandwidth Product f = 10KHz 1.3 MHz en Input-Referred Voltage Noise f = 10KHz, R s =5 0Ω 33 in Input-Referred Current Noise f = 10KHz 1.5 THD Total Harmonic Distortion f = 10KHz, AV = +1, VO =8Vpp, RL = 600Ω 0.2 % Note 1: 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 specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Ch aracteristics. Note 2: Human body model, 1.5k Ω in series with 100pF. Note 3: Applies to both single-supply and split-supply operation. Continuous short circuit operation at elevated ambient temperature can result in exceed ing the maximum allowed junction temperature at 150˚C. Output currents in excess of 40mA over long term may adversely affect reliability. Note 4: The maximum power dissipation is a function of T J(MAX), θJA and T A. The maximum allowable power dissipation at any ambient temperature is PD =( TJ(MAX) −T A)/θJA. All numbers apply for packages soldered directly onto a PC board. Note 5: Typical Values represent the most likely parametric norm. Note 6: All limits are guaranteed by testing or statistical analysis. Note 7: Positive current corresponds to current flowing into the device. Note 8: Slew rate is the slower of the rising and falling slew rates. Note 9: Shutdown Turn-on and Turn-off times are defined as the time required for the output to reach 90% and 10%, respectively, of its final peak to peak swing when set for Rail to Rail output swing with a 100KHz sine wave, 2K Ω load, and AV = +10. Note 10: Limiting input pin current is only necessary for input voltages that exceed absolute maximum input voltage ratings. Note 11: Short circuit test is a momentary test. See Note 12. Note 12: Output short circuit duration is infinite for V S < 6V. Otherwise, extended period output short circuit may damage the device. Note 13: machine Model, 0Ω in series with 200pF. LMC8101 www.national.com5
Typical Performance Characteristics VS = 2.7V, Single Supply, V CM =V +/2, TA = 25˚C unless specified Gain/Phase vs. Frequency (R L = 2k, V S = ± 1.35V) Gain/Phase vs. Frequency (R L = 2k, V S = ± 5V) 10124002 10124001 Gain/Phase vs. Frequency (R L = Open) Gain vs. Phase for various C L VS = ±1.35V 10124004 10124003 Unity Gain Frequency vs. Supply Voltage Phase Margin vs. Supply Voltage 10124005 10124006 LMC8101 www.national.com 6
Typical Performance Characteristics VS = 2.7V, Single Supply, V CM =V +/2, TA = 25˚C unless specified (Continued) Unity Gain Frequency and Phase Margin vs. Load Unity Gain Frequency and Phase Margin vs. Load 10124007 10124008 PSRR vs. Frequency PSRR vs. Frequency 10124010 10124009 CMRR vs. Frequency Input Bias Current vs. Common Mode Voltage @ 85˚C 10124011 10124013 LMC8101 www.national.com7
Typical Performance Characteristics VS = 2.7V, Single Supply, V CM =V +/2, TA = 25˚C unless specified (Continued) Input Current vs. Temperature VS = 10V V IN vs. VOUT 10124091 10124023 VIN vs. VOUT VIN vs. VOUT 10124083 10124028 VIN vs. VOUT Supply Current vs. Supply Voltage 10124024 10124029 LMC8101 www.national.com 8
Typical Performance Characteristics VS = 2.7V, Single Supply, V CM =V +/2, TA = 25˚C unless specified (Continued) Delta VOS vs. VCM (Ref VCM = 1.35V) Delta VOS vs. VCM (Ref VCM = 5V) 10124092 10124093 Offset Voltage vs. V SUPPLY Output Positive Swing vs. Supply Voltage RL = 600Ω to V+/2 10124037 10124025 Output Positive Swing vs. Supply Voltage RL =2 kt oV +/2 Output Negative Swing vs. Supply Voltage RL = 600Ω to V+/2 10124027 10124035 LMC8101 www.national.com9
Typical Performance Characteristics VS = 2.7V, Single Supply, V CM =V +/2, TA = 25˚C unless specified (Continued) Output Negative Swing vs. Supply Voltage, RL =2 kt oV +/2 Short Circuit Sinking Current vs. Supply Voltage 10124036 10124026 Short Circuit Sourcing Current vs. Supply Voltage Undistorted Output Voltage Swing vs. Output Load Resistance 10124030 10124046 Step Response 1% settling time and % overshoot vs. Cap Load Large Signal Step Response 10124014 10124015 LMC8101 www.national.com 10
Typical Performance Characteristics VS = 2.7V, Single Supply, V CM =V +/2, TA = 25˚C unless specified (Continued) Small Signal Step Response Large Signal Step Response 10124016 10124017 Small Signal Step Response Small Signal Step Response 10124018 10124019 Large Signal Step Response Large Signal Step Response 10124020 10124021 LMC8101 www.national.com11
Typical Performance Characteristics VS = 2.7V, Single Supply, V CM =V +/2, TA = 25˚C unless specified (Continued) Small Signal Step Response Slew Rate vs. Supply Voltage 10124022 10124038 Slew Rate vs. Capacitive Load Slew Rate vs. Capacitive Load 10124039 10124041 Slew Rate vs. Capacitive Load Slew Rate vs. Capacitive Load 10124042 10124043 LMC8101 www.national.com 12
Typical Performance Characteristics VS = 2.7V, Single Supply, V CM =V +/2, TA = 25˚C unless specified (Continued) Voltage Noise vs. Frequency Voltage Noise vs. V CM @ Various Frequencies 10124040 10124012 THD+N vs. Amplitude THD+N vs. Frequency 10124044 10124045 Sourcing Current vs. Output Voltage (V S = 2.7V) Sinking Current vs. Output Voltage (V S = 2.7V) 10124087 10124085 LMC8101 www.national.com13
Typical Performance Characteristics VS = 2.7V, Single Supply, V CM =V +/2, TA = 25˚C unless specified (Continued) Sourcing Current vs. Output Voltage (V S = 10V) Sinking Current vs. Output Voltage (V S = 10V) 10124086 10124084 Cap Load vs. I OUT Cap Load vs. Isolation Resistance 10124088 10124090 LMC8101 www.national.com 14
Application Notes (Continued) LOWER THD When connected to heavier loads, the LMC8101 has lower THD compared to the LMC7101. For example, with 5V sup- ply at 10KHz and 2Vpp swing (Av = −2), the LMC8101 THD (0.2%) is 60% less than the LMC7101’s. The LMC8101 THD can be kept below 0.1% with 3Vpp at the output for up to 10KHz (refer to the Typical Characteristics Plots). IMPROVING THE CAP LOAD DRIVE CAPABILITY This can be accomplished in several ways: Output resistive loading increase: The Phase Margin increases with increasing load (refer to the Typical Characteristics Plots). When driving capacitive loads, stability can generally be improved by allowing some output current to flow through a load. For example, the cap load drive capability can be increased from 8200pF to 16000pF if the output load is increased from 5k Ω to 600Ω V = +10, 25% overshoot limit, 10V supply). Isolation resistor between output and cap load: This resistor will isolate the feedback path (where excessive phase shift due to output capacitance can cause instability) from the capacitive load. With a 10V supply, a 100Ω isolation resistor allows unlimited capacitive load without oscillation compared to only 300pF without this resistor (A V = +1). Higher supply voltage: Operating the LMC8101 at higher supply voltages allows higher cap load tolerance. At 10V, the LMC8101’s low supply voltage cap load limit of 300pF improves to about 600pF (A V = +1). Closed loop gain increase: As with all Op Amps, the capacitive load tolerance of the LMC8101 increases with increasing closed loop gain. In applications where the load is mostly capacitive and the resistive loading is light, stability increases when the LMC8101 is operated at a closed loop gain larger than +1.
Ordering Information
Package Part Number Package Marking Transport Media NSC Drawing 8-Bump micro SMD Leaded LMC8101BP A
250 Units Tape and Reel BPA08FFBLMC8101BPX 3k Units Tape and Reel
250 Units Tape and Reel TPA08FFALMC8101TPX 3k Units Tape and Reel
8-Pin MSOP LMC8101MM A11 1k Units Tape and Reel MUA08ALMC8101MMX 3.5k Units Tape and Reel LMC8101 www.national.com 16
Physical Dimensions inches (millimeters) unless otherwise noted NOTES: UNLESS OTHERWISE SPECIFIED 1. EPOXY COATING 2. 63Sn/37Pb EUTECTIC BUMP 3. RECOMMENDED NON-SOLDER MASK DEFINED LANDING PAD. 4. PIN A1 IS ESTABLISHED BY LOWER LEFT CORNER WITH RESPECT TO TEXT ORIENTATION. REMAINING PINS ARE NUMBERED COUNTERCLOCKWISE. 5. XXX IN DRAWING NUMBER REPRESENTS PACKAGE SIZE VARIATION WHERE X1 IS PACKAGE WIDTH, X2 IS PACKAGE LENGTH AND X3 IS PACKAGE HEIGHT. 6. REFERENCE JEDEC REGISTRATION MO-211, VARIATION BC. 8-Bump micro SMD Package Order Package Number LMC8101BP, LMC8101BPCONV or LMC8101BPX X1 = 1.412 X 2 = 1.412 X 3 = 0.850 LMC8101 www.national.com17
Physical Dimensions inches (millimeters) unless otherwise noted (Continued) NOTES: UNLESS OTHERWISE SPECIFIED 1. EPOXY COATING 2. FOR SOLDER BUMP COMPOSITION, SEE “SOLDER INFORMATION”. IN THE PACKAGING SECTION OF THE NATIONAL SEMICONDUCTOR WEB PAGE (www.national.com) 3. RECOMMENDED NON-SOLDER MASK DEFINED LANDING PAD. 4. PIN A1 IS ESTABLISHED BY LOWER LEFT CORNER WITH RESPECT TO TEXT ORIENTATION. 5. XXX IN DRAWING NUMBER REPRESENTS PACKAGE SIZE VARIATION WHERE X1 IS PACKAGE WIDTH, X2 IS PACKAGE LENGTH AND X3 IS PACKAGE HEIGHT. 6. REFERENCE JEDEC REGISTRATION MO-211, VARIATION BC. 8-Bump micro SMD (Lead Free) Package Order Package Number LMC8101TP, or LMC8101TPX X1 = 1.412 mm X 2 = 1.412 mm X 3 = 0.5 mm LMC8101 www.national.com 18
Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 8-Pin MSOP Package Order Package Number LMC8101MM or LMC8101MMX LIFE SUPPORT POLICY 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 LMC8101 Rail-to-Rail Input and Output, 2.7V Op Amp in micro SMD package with Shutdown 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.