LM6142BIN

LM6142 NSC | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 15

Technical content

Features

At VS = 5V. Typ unless noted. n Rail-to-rail input CMVR −0.25V to 5.25V n Rail-to-rail output swing 0.005V to 4.995V n Wide gain-bandwidth: 17 MHz at 50 kHz (typ) n Slew rate: Small signal, 5V/µs Large signal, 30V/µs n Low supply current 650 µA/Amplifier n Wide supply range 1.8V to 24V n CMRR 107 dB n Gain 108 dB with R L = 10k n PSRR 87 dB

Applications

n Battery operated instrumentation n Depth sounders/fish finders n Barcode scanners n Wireless communications n Rail-to-rail in-out instrumentation amps Connection Diagrams 8-Pin CDIP DS012057-14 Top View 8-Pin DIP/SO DS012057-1 Top View May 1999 LM6142 Dual and LM6144 Quad High Speed/Low Power 17 MHz Rail-to-Rail Input-Output Operational Amplifiers © 1999 National Semiconductor Corporation DS012057 www.national.com

Connection Diagrams (Continued)

Ordering Information

Package Temperature Range Temperature Range NSC DrawingIndustrial Military −40˚C to +85˚C −55˚C to +125˚C 8-Pin Molded DIP LM6142AIN, LM6142BIN N08E 8-Pin Small Outline LM6142AIM, LM6142BIM M08A 14-Pin Molded DIP LM6144AIN, LM6144BIN N14A 14-Pin Small Outline LM6144AIM, LM6144BIM M14A 8-Pin CDIP LM6142AMJ-QML J08A 14-Pin DIP/SO DS012057-2 Top View www.national.com 2

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 (Note 2) 2500V Differential Input Voltage 15V Voltage at Input/Output Pin (V+) + 0.3V, (V−) − 0.3V Supply Voltage (V+ − V−) 35V Current at Input Pin ±10 mA Current at Output Pin (Note 3) ±25 mA Current at Power Supply Pin 50 mA Lead Temperature (soldering, 10 sec) 260˚C Storage Temp. Range −65˚C to +150˚C Junction Temperature (Note 4) 150˚C Operating Ratings(Note 1) Supply Voltage 1.8V ≤ V+ ≤ 24V Junction Temperature Range LM6142, LM6144 −40˚C ≤ TJ ≤ +85˚C Thermal Resistance (θJA) N Package, 8-Pin Molded DIP 115˚C/W M Package, 8-Pin Surface Mount 193˚C/W N Package, 14-Pin Molded DIP 81˚C/W M Package, 14-Pin Surface Mount 126˚C/W 5.0V DC Electrical Characteristics Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+= 5.0V, V−= 0V, VCM = VO = V+/2 and RL > 1M Ω to V+/2.Boldface limitsapply at the temperature extremes. LM6144AI LM6144BI Symbol Parameter Conditions Typ LM6142AI LM6142BI Units (Note 5) Limit Limit (Note 6) (Note 6) VOS Input Offset Voltage 0.3 1.0 2.5 mV 2.2 3.3 max TCV OS Input Offset Voltage 3 µV/˚C Average Drift IB Input Bias Current 170 250 300 nA max0V ≤ VCM ≤ 5V 180 280 526 526 IOS Input Offset Current 3 30 30 nA 80 80 max R IN Input Resistance, CM 126 M Ω CMRR Common Mode 0V ≤ VCM ≤ 4V 107 84 84 dB min Rejection Ratio 78 78 0V ≤ VCM ≤ 5V 82 66 66 79 64 64 PSRR Power Supply 5V ≤ V+ ≤ 24V 87 80 80 Rejection Ratio 78 78 VCM Input Common-Mode −0.25 00 V Voltage Range 5.25 5.0 5.0 AV Large Signal R L = 10k 270 100 80 V/mV Voltage Gain 70 33 25 min VO Output Swing R L = 100k 0.005 0.01 0.01 V 0.013 0.013 max 4.995 4.98 4.98 V 4.93 4.93 min R L = 10k 0.02 V max

4.97 V min

R L = 2k 0.06 0.1 0.1 V 0.133 0.133 max 4.90 4.86 4.86 V 4.80 4.80 min www.national.com3

5.0V DC Electrical Characteristics(Continued) Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+= 5.0V, V−= 0V, VCM = VO = V+/2 and RL > 1M Ω to V+/2.Boldface limitsapply at the temperature extremes. LM6144AI LM6144BI Symbol Parameter Conditions Typ LM6142AI LM6142BI Units (Note 5) Limit Limit (Note 6) (Note 6) ISC Output Short Sourcing 13 10 8 mA Circuit Current 4.9 4 min LM6142 35 35 mA max Sinking 24 10 10 mA 5.3 5.3 min 35 35 mA max I SC Output Short Sourcing 8 6 6 mA Circuit Current 33 min LM6144 35 35 mA max Sinking 22 8 8 mA 44 min 35 35 mA max I S Supply Current Per Amplifier 650 800 800 µA 880 880 max 5.0V AC Electrical Characteristics Unless Otherwise Specified, All Limits Guaranteed for TJ = 25˚C, V+= 5.0V, V−= 0V, VCM = VO = V+/2 and RL > 1M Ω to VS/2.Boldface limitsapply at the temperature extremes. LM6144AI LM6144BI Symbol Parameter Conditions Typ LM6142AI LM6142BI Units (Note 5) Limit Limit (Note 6) (Note 6) SR Slew Rate 8 V p-p @ VCC 12V 25 15 13 V/µs R S > 1k Ω 13 11 min GBW Gain-Bandwidth Product f = 50 kHz 17 10 10 MHz 66 min φm Phase Margin 38 Deg Amp-to-Amp Isolation 130 dB e n Input-Referred f = 1 kHz 16 Voltage Noise in Input-Referred f = 1 kHz 0.22 Current Noise T.H.D. Total Harmonic Distortion f = 10 kHz, RL = 10 kΩ , 0.003 % www.national.com 4

2.7V DC Electrical Characteristics Unless Otherwise Specified, All Limits Guaranteed for TJ = 25˚C, V+= 2.7V, V−= 0V, VCM = VO = V+/2 and RL > 1M Ω to V+/2.Boldfacelimits apply at the temperature extreme LM6144AI LM6144BI Symbol Parameter Conditions Typ LM6142AI LM6142BI Units (Note 5) Limit Limit (Note 6) (Note 6) VOS Input Offset Voltage 0.4 1.8 2.5 mV 4.3 4.3 max IB Input Bias Current 150 250 300 nA 526 526 max IOS Input Offset Current 4 30 30 nA 80 80 max R IN Input Resistance 128 M Ω CMRR Common Mode 0V ≤ VCM ≤ 1.8V 90 dB minRejection Ratio 0V ≤ VCM ≤ 2.7V 76 PSRR Power Supply 3V ≤ V+ ≤ 5V 79 Rejection Ratio VCM Input Common-Mode −0.25 0 0 V min Voltage Range 2.95 2.7 2.7 V max A V Large Signal R L = 10k 55 V/mV Voltage Gain min VO Output Swing R L = 10 kΩ 0.019 0.08 0.08 V 0.112 0.112 max 2.67 2.66 2.66 V 2.25 2.25 min IS Supply Current Per Amplifier 510 800 800 µA 880 880 max 2.7V AC Electrical Characteristics Unless Otherwise Specified, All Limits Guaranteed for TJ = 25˚C, V+= 2.7V, V−= 0V, VCM = VO = V+/2 and RL > 1M Ω to V+/2.Boldfacelimits apply at the temperature extreme LM6144AI LM6144BI Symbol Parameter Conditions Typ LM6142AI LM6142BI Units (Note 5) Limit Limit (Note 6) (Note 6) GBW Gain-Bandwidth Product f = 50 kHz 9 MHz φm Phase Margin 36 Deg G m Gain Margin 6 dB www.national.com5

Unless Otherwise Specified, All Limits Guaranteed for TJ = 25˚C, V+= 24V, V−= 0V, VCM = VO = V+/2 and RL > 1M Ω to VS/2.Boldfacelimits apply at the temperature extreme LM6144AI LM6144BI Symbol Parameter Conditions Typ LM6142AI LM6142BI Units (Note 5) Limit Limit (Note 6) (Note 6) VOS Input Offset Voltage 1.3 2 3.8 mV 4.8 4.8 max IB Input Bias Current 174 nA max IOS Input Offset Current 5 nA max R IN Input Resistance 288 M Ω CMRR Common Mode 0V ≤ VCM ≤ 23V 114 dB minRejection Ratio 0V ≤ VCM ≤ 24V 100 PSRR Power Supply 0V ≤ VCM ≤ 24V 87 Rejection Ratio VCM Input Common-Mode −0.25 0 0 V min Voltage Range 24.25 24 24 V max A V Large Signal R L = 10k 500 V/mV Voltage Gain min VO Output Swing R L = 10 kΩ 0.07 0.15 0.15 V 0.185 0.185 max 23.85 23.81 23.81 V 23.62 23.62 min IS Supply Current Per Amplifier 750 1100 1100 µA 1150 1150 max GBW Gain-Bandwidth Product f = 50 kHz 18 MHz Note 1:Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is in- tended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Charactenstics. Note 2:Human body model, 1.5 kΩ in series with 100 pF. 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) −T A)/θJA. All numbers apply for packages soldered directly into 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:For guaranteed military specifications see military datasheet MNLM6142AM-X. www.national.com 6

Typical Performance CharacteristicsTA = 25˚C, RL = 10 kΩ Unless Otherwise Specified Supply Current vs Supply Voltage DS012057-15 Offset Voltage vs Supply Voltage DS012057-16 Bias Current vs Supply Voltage DS012057-17 Offset Voltage vs VCM DS012057-18 Offset Voltage vs VCM DS012057-19 Offset Voltage vs VCM DS012057-20 Bias Current vs VCM DS012057-21 Bias Current vs VCM DS012057-22 Bias Current vs VCM DS012057-23 Open-Loop Transfer Function DS012057-24 Open-Loop Transfer Function DS012057-25 Open-Loop Transfer Function DS012057-26 www.national.com7

Typical Performance CharacteristicsTA = 25˚C, RL = 10 kΩ Unless Otherwise Specified (Continued) Output Voltage vs Source Current DS012057-27 Output Voltage vs Source Current DS012057-28 Output Voltage vs Source Current DS012057-29 Output Voltage vs Sink Current DS012057-30 Output Voltage vs Sink Current DS012057-31 Output Voltage vs Sink Current DS012057-32 Gain and Phase vs Load DS012057-33 Gain and Phase vs Load DS012057-34 Distortion + Noise vs Frequency DS012057-35 www.national.com 8

Typical Performance CharacteristicsTA = 25˚C, RL = 10 kΩ Unless Otherwise Specified (Continued) GBW vs Supply DS012057-36 Open Loop Gain vs Load, 3V Supply DS012057-37 Open Loop Gain vs Load, 5V Supply DS012057-38 Open Loop Gain vs Load, 24V Supply DS012057-39 Unity Gain Freq vs VS DS012057-40 CMRR vs Frequency DS012057-41 Crosstalk vs Frequency DS012057-42 PSRR vs Frequency DS012057-43 Noise Voltage vs Frequency DS012057-44 www.national.com9

Typical Applications(Continued) ANALOG TO DIGITAL CONVERTER BUFFER The high capacitive load driving ability, rail-to-rail input and output range with the excellent CMR of 82 dB, make the LM6142/44 a good choice for buffering the inputs of A to D converters.

3 OPAMP INSTRUMENTATION AMP WITH

RAIL-TO-RAIL INPUT AND OUTPUT Using the LM6144, a 3 opamp instrumentation amplifier with rail-to-rail inputs and rail to rail output can be made. These features make these instrumentation amplifiers ideal for single supply systems. Some manufacturers use a precision voltage divider array of 5 resistors to divide the common-mode voltage to get an in- put range of rail-to-rail or greater. The problem with this method is that it also divides the signal, so to even get unity gain, the amplifier must be run at high closed loop gains. This raises the noise and drift by the internal gain factor and lowers the input impedance. Any mismatch in these preci- sion resistors reduces the CMR as well. Using the LM6144, all of these problems are eliminated. In this example, amplifiers A and B act as buffers to the dif- ferential stage ( Figure 6). These buffers assure that the input impedance is over 100 MΩ and they eliminate the require- ment for precision matched resistors in the input stage. They also assure that the difference amp is driven from a voltage source. This is necessary to maintain the CMR set by the matching of R1–R2 with R3–R4. The gain is set by the ratio of R2/R1 and R3 should equal R1 and R4 equal R2. Making R4 slightly smaller than R2 and adding a trim pot equal to twice the difference between R2 and R4 will allow the CMR to be adjusted for optimum. With both rail to rail input and output ranges, the inputs and outputs are only limited by the supply voltages. Remember that even with rail-to-rail output, the output can not swing past the supplies so the combined common mode voltage plus the signal should not be greater than the supplies or lim- iting will occur. SPICE MACROMODEL A SPICE macromodel of this and many other National Semi- conductor opamps is available at no charge from the NSC Customer Response Group at 800-272-9959. DS012057-13 FIGURE 6. www.national.com 12

Physical Dimensionsinches (millimeters) unless otherwise noted 8-Pin Ceramic Sidebrazed Dual-In-Line Package Order Number LM6142AMJ-QML 8-Pin Small Outline Package Order Number LM6142AIM or LM6142BIM www.national.com13

Physical Dimensionsinches (millimeters) unless otherwise noted (Continued) 14-Pin Small Outline Package Order Number LM6144AIM or LM6144BIM 8-Pin Molded Dual-In-Line Package Order Number LM6142AIN or LM6142BIN www.national.com 14

Physical Dimensionsinches (millimeters) unless otherwise noted (Continued) 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 Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: support@nsc.com National Semiconductor Europe Fax: +49 (0) 1 80-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 1 80-530 85 85 English Tel: +49 (0) 1 80-532 78 32 Français Tel: +49 (0) 1 80-532 93 58 Italiano Tel: +49 (0) 1 80-534 16 80 National Semiconductor Asia Pacific Customer Response Group Tel: 65-2544466 Fax: 65-2504466 Email: sea.support@nsc.com National Semiconductor Japan Ltd. Tel: 81-3-5639-7560 Fax: 81-3-5639-7507 www.national.com 14-Pin Molded Dual-In-Line Package Order Number LM6144AIN or LM6144BIN LM6142 Dual and LM6144 Quad High Speed/Low Power 17 MHz Rail-to-Rail Input-Output Operational Amplifiers 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.