LM8272 NSC | Alldatasheet

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Technical content

Features

(VS = 12V, TA = 25˚C, Typical values unless specified). n GBWP 15MHz n Wide supply voltage range 2.5V to 24V n Slew rate 15V/µs n Supply current/channel 0.95mA n Cap load tolerance Unlimited n Output short circuit current ±130mA n Output current (1V from rails) ±65mA n Input common mode voltage 0.3V beyond rails n Input voltage noise 15nV/ n Input current noise 1.4pA/

Applications

n TFT-LCD flat panel VCOM driver n A/D converter buffer n High side/low side sensing n Headphone amplifier Connection Diagram 8-Pin MSOP 10130863 Top View Large Signal Step Response for Various Cap. Load 10130899

Ordering Information

Package Part Number Package Marking Transport Media NSC Drawing 8-Pin MSOP LM8272MM A60 1k Unit Tape and Reel MUA08ALM8272MMX 3.5k Unit Tape and Reel December 2002 LM8272 Dual RRIO, High Output Current & Unlimited Cap Load Op Amp in Miniature Package © 2002 National Semiconductor Corporation DS101308 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 9) V IN Differential +/−10V Output Short Circuit Duration (Notes 3, 11) Supply Voltage (V + -V −) 27V Voltage at Input/Output pins V + +0.3V, V− −0.3V 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 Supply Voltage (V+ -V −) 2.5V to 24V Junction Temperature Range(Note 4) −40˚C to +85˚C Package Thermal Resistance,θ JA,(Note 4) 8-Pin MSOP 235C/W Unless otherwise specified, all limited guaranteed for TJ = 25˚C, V+ = 5V, V− = 0V, VCM = 0.5V, VO =V +/2, and RL > 1MΩ to V−. Boldface limits apply at the temperature extremes. Symbol Parameter Condition Typ (Note 5) Limit (Note 6) Units VOS Input Offset Voltage V CM = 0.5V & VCM = 4.5V +/−0.7 +/−5 +/− 7 mV max TC VOS Input Offset Average Drift V CM = 0.5V & VCM = 4.5V (Note 12) +/−2 — µV/˚C IB Input Bias Current (Note 7) — ±2.00 ±2.70 µA max IOS Input Offset Current 20 250 400 nA max CMRR Common Mode Rejection Ratio V CM stepped from 0V to 5V 80 64 dB min +PSRR Positive Power Supply Rejection Ratio V + from 4.5V to 13V 100 78 dB min CMVR Input Common-Mode Voltage Range CMRR > 50dB −0.3 −0.1 0.0 V max 5.3 5.1 5.0 V min AVOL Large Signal Voltage Gain V O = 0.5 to 4.5V, RL = 10kΩ to V+/2 80 64 dB min VO Output Swing High RL = 10kΩ to V− 4.93 4.85 V minISOURCE = 5mA 4.85 4.70 Output Swing Low RL = 10kΩ to V+ 215 250 mV maxISINK = 5mA 300 350 ISC Output Short Circuit Current Sourcing to V − VID = 200mV (Note 10) 100 — mASinking to V+ VID = −200mV (Note 10) 100 — IOUT Output Current V ID = ±200mV, VO = 1V from rails ±55 — mA IS Supply Current (Both Channel) No load, V CM = 0.5V 1.8 2.3 2.8 mA max SR Slew Rate (Note 8) A V = +1, VI =5 VPP 12 — V/µs fu Unity Gain Frequency V I = 10mVp, RL =2 KΩ to V+/2 7.5 — MHz GBWP Gain-Bandwidth Product f = 50KHz 13 — MHz Phi m Phase Margin V I = 10mVp, RL =2 kΩ to V+/2 55 — deg en Input-Referred Voltage Noise f = 2KHz, R S =5 0Ω 15 — nV/ LM8272 Dual www.national.com 2

Unless otherwise specified, all limited guaranteed for TJ = 25˚C, V+ = 5V, V− = 0V, VCM = 0.5V, VO =V +/2, and RL > 1MΩ to V−. Boldface limits apply at the temperature extremes. Symbol Parameter Condition Typ (Note 5) Limit (Note 6) Units in Input-Referred Current Noise f = 2KHz 1.4 — pA/ fmax Full Power Bandwidth Z L = (20pF || 10kΩ)t oV +/2 700 — KHz Unless otherwise specified, all limited guaranteed for TJ = 25˚C, V+ = 12V, V− = 0V, VCM = 6V, VO = 6V, and RL > 1MΩ to V−. Boldface limits apply at the temperature extremes. Symbol Parameter Condition Typ (Note 5) Limit (Note 6) Units VOS Input Offset Voltage V CM = 0.5V & VCM = 11.5V +/−0.7 +/−7 +/− 9 mV max TC VOS Input Offset Average Drift V CM = 0.5V & VCM = 11.5V (Note 12) +/−2 — µV/˚C IB Input Bias Current (Note 7) — ±2.00 ±2.80 µA max IOS Input Offset Current 30 275 550 nA max CMRR Common Mode Rejection Ratio V CM stepped from 0V to 12V 88 74 dB min +PSRR Positive Power Supply Rejection Ratio V + from 4.5V to 13V, VCM = 0.5V 100 78 dB min −PSRR Negative Power Supply Rejection Ratio 85 — dB CMVR Input Common-Mode Voltage Range CMRR > 50dB −0.3 −0.1 V max 12.3 12.1 12.0 V min AVOL Large Signal Voltage Gain V O =1 Vt o1 1 V RL = 10kΩ to V+/2 83 74 dB min VO Output Swing High RL 10kΩ to V+/2 11.8 11.7 V minISOURCE = 5mA 11.6 11.5 Output Swing Low RL = 10kΩ to V+/2 0.25 0.3 V maxISINK = 5mA .40 .45 ISC Output Short Circuit Current Sourcing to V − VID = 200mV (Note 10) 130 110 mA minSinking to V+ VID = 200mV (Note 10) 130 110 IOUT Output Current V ID = ±200mV, VO = 1V from rails ±65 — mA IS Supply Current (Both Channel) No load, V CM = 0.5V 1.9 2.4 2.9 mA max SR Slew Rate (Note 8) AV = +1, VI = 10VPP,C L = 10pF 15 — V/µsAV = +1, VI = 10VPP,C L = 0.1µF 1 — ROUT Close Loop Output Resistance A V = +1, f = 100KHz 3 — Ω fu Unity Gain Frequency V I = 10mVp, RL =2 kΩ to V+/2 8 — MHz GBWP Gain-Bandwidth Product f = 50KHz 15 — MHz Phi m Phase Margin V I = 10mVp, RL =2 kΩ to V+/2 57 — Deg GM Gain Margin V I = 10mVp, RL =2 kΩ to V+/2 20 — dB LM8272 Dual www.national.com3

Unless otherwise specified, all limited guaranteed for TJ = 25˚C, V+ = 12V, V− = 0V, VCM = 6V, VO = 6V, and RL > 1MΩ to V−. Boldface limits apply at the temperature extremes. Symbol Parameter Condition Typ (Note 5) Limit (Note 6) Units −3dB BW Small Signal -3db Bandwidth A V = +1, RL =2 kΩ to V+/2 12.5 — MHzAV = +1, RL = 600Ω to V+/2 10.5 — AV = +10, RL = 600Ω to V+/2 1.0 — en Input-Referred Voltage Noise f = 2KHz, R S =5 0Ω 15 — nV/ in Input-Referred Current Noise f = 2KHz 1.4 — pA/ fmax Full Power Bandwidth Z L = (20pF || 10kΩ)t oV +/2 300 — KHz THD+N Total Harmonic Distortion +Noise A V = +2, RL =2 kΩ to V+/2 VO =8 VPP,V S = ±5V 0.02 — % CT Rej. Cross-Talk Rejection f = 5MHz, Driver R L = 10kΩ to V+/2 68 — dB Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Rating 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 Characteristics. Note 2: Human body model, 1.5kΩ 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 exceeding the maximum allowed junction temperature of 150˚C. Note 4: The maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any ambient temperature is PD =( TJ(max) - TA)/ 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. Connected as a Voltage Follower. Note 9: Machine Model, 0Ω is series with 200pF. Note 10: Short circuit test is a momentary test. See Note 11. Note 11: Output short circuit duration is infinite for VS ≤ 6V at room temperature and below. For VS > 6V, allowable short circuit duration is 1.5ms. Note 12: Offset voltage average drift determined by dividing the change in VOS at temperature extremes into the total temperature change. LM8272 Dual www.national.com 4

Typical Performance Charateristics VOS Distribution V OS vs. VCM for 3 Representative Units 101308A2 10130830 VOS vs. VCM for 3 Representative Units V OS vs. VCM for 3 Representative Units 10130829 10130831 VOS vs. VS for 3 Representative Units V OS vs. VS for 3 Representative Units 10130884 10130883 LM8272 Dual www.national.com5

Typical Performance Charateristics (Continued) VOS vs. VS for 3 Representative Units I B vs. VS 10130882 10130871 IB vs. VS IS vs. VCM 101308A3 10130872 IS vs. VCM IS vs. VS 10130875 10130874 LM8272 Dual www.national.com 6

Typical Performance Charateristics (Continued) IS vs. VS CMRR vs. Frequency 10130873 10130887 +PSRR vs. Frequency −PSRR vs. Frequency 10130888 10130889 Open Loop Gain/Phase for Various Supplies Closed Loop Frequency Response for Various Gains 10130893 10130896 LM8272 Dual www.national.com7

Typical Performance Charateristics (Continued) Closed Loop Frequency Response for Various Gains Closed Loop Frequency Response for Various Gains R L 10130895 10130894 Maximum Output Swing vs. Load (1% Distortion) Maximum Output Swing vs. Frequency (1% Distortion) 10130876 10130877 Closed Loop Small Signal Frequency Response for Various CL Overshoot vs. Cap Load 10130886 10130878 LM8272 Dual www.national.com 8

Typical Performance Charateristics (Continued) Settling Time ( ±1%) & Slew Rate vs. Cap Load V OUT from V+ vs. ISOURCE 10130879 10130898 VOUT from V− vs. ISINK Step Response for Various Amplitudes 10130897 101308A0 Step Response for Various Amplitudes Large Signal Step Response for Various Cap Loads 101308A1 10130899 LM8272 Dual www.national.com9

Typical Performance Charateristics (Continued) THD+N vs. Input Amplitude for Various Frequency Input Referred Noise Density 10130892 10130880 Closed Loop Output Impedance vs. Frequency Crosstalk Rejection vs. Frequency 10130885 10130881 LM8272 Dual www.national.com 10

condition can be tolerated indefinitely. TABLE 1. Normalized AC Power Dissipated in the the Op Amp oscillation free under any load.

  • Improved cross over distortion
  • Nearly constant supply current throughout the output voltage swing range and close to either rail.
  • Nearly constant Unity gain frequency (f u) and Phase Margin (Phim) for all operating supplies and load condi- tions.
  • No output phase reversal under input overload condition. LM8272 Dual www.national.com13

Physical Dimensions inches (millimeters) unless otherwise noted 8-Pin MSOP 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. National Semiconductor Corporation Americas Email: support@nsc.com National Semiconductor Europe 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 Response Group Tel: 65-2544466 Fax: 65-2504466 Email: ap.support@nsc.com National Semiconductor Japan Ltd. Tel: 81-3-5639-7560 Fax: 81-3-5639-7507 www.national.com LM8272 Dual RRIO, High Output Current & Unlimited Cap Load Op Amp in Miniature Package National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.