LM6162 LM6162 High Speed Operational Amplifier Literature Number: SNOS601A October 24, 2011 LM6162 High Speed Operational Amplifier General Description Features The LM6162 family of high-speed amplifiers exhibits an excellent speed-power product, delivering 300 V/s and 100 MHz gain-bandwidth product (stable for gains as low as +2 or -1) with only 5 mA of supply current. Further power savings and application convenience are possible by taking advantage of the wide dynamic range in operating supply voltage which extends all the way down to +5V. These amplifiers are built with National's VIP(R) (Vertically Integrated PNP) process which provides fast transistors that are true complements to the already fast NPN devices. This advanced junction-isolated process delivers high speed performance without the need for complex and expensive dielectric isolation. High slew rate: 300 V/s High gain-bandwidth product: 100 MHz Low supply current: 5 mA Fast settling time: 120 ns to 0.1% Low differential gain: <0.1% Low differential phase: <0.1 Wide supply range: 4.75V to 32V Stable with unlimited capacitive load Well behaved; easy to apply Applications Video amplifier Wide-bandwidth signal conditioning for image processing (FAX, scanners, laser printers) Hard disk drive preamplifier Error amplifier for high-speed switching regulator Connection Diagrams 10-Pin Ceramic Flatpak 1106115 Top View See NS Package Number W10A 1106102 See NS Package Number N08E or J08A Ordering Information Temperature Range Military Industrial Commercial -55C TA +125C -25C TA +85C 0C TA +70C Package NSC Drawing LM6162N 8-Pin Molded DIP N08E LM6162J/883 5962-9216501PA 8-Pin Ceramic DIP J08A LM6162WG/883 5962-9216501XA 10-Lead Ceramic SOIC WG10A LM6162W/883 5962-9216501HA 10-Pin Ceramic Flatpak W10A VIP(R) is a registered trademark of National Semiconductor Corporation. (c) 2011 National Semiconductor Corporation 11061 11061 Version 4 Revision 4 www.national.com Print Date/Time: 2011/10/24 14:05:16 LM6162 High Speed Operational Amplifier OBSOLETE LM6162 See AN-450 "Surface Mounting Methods and Their Effect on Product Reliability" for other methods of soldering surface mount devices. Storage Temperature Range -65C TJ +150C Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage (V+-V-) Differential Input Voltage (Note 2) Common-Mode Input Voltage Max Junction Temperature ESD Tolerance (Note 5) 36V 8V (V+-0.7V) to (Note 3) Output Short Circuit to GND (V- + 0.7V) (Note 4) Soldering Information Dual-In-Line Package (N) Soldering (10 seconds) Small Outline Package (M) Vapor Phase (60 seconds) Infrared (15 seconds) Continuous 150C 1100V Operating Ratings Temperature Range (Note 6) LM6162 Supply Voltage Range -55C TJ +125C 4.75V to 32V 260C 215C 220C DC Electrical Characteristics These limits apply for supply voltage = 15V, VCM = 0V, and RL 100 k, unless otherwise specified. Limits in standard typeface are for TA = TJ = 25C; limits in boldface type apply over the Operating Temperature Range. Symbol VOS Parameter Conditions Typical (Note 7) LM6162 Limit (Note 8) 3 5 mV 8 max Input Offset Voltage Input Offset Voltage Units V/C 7 Average Drift Ibias Input Bias Current IOS Input Offset Current 3 150 350 nA 800 max 6 Input Offset Current Average Drift RIN Input Resistance CIN Input Capacitance AVOL Large Signal VOUT = 10V, RL = 2 k Voltage Gain (Note 9) VCM Differential Input Common-Mode 0.3 nA/C 180 k 2.0 pF 1400 RL = 10 k 6500 Supply = 15V +14.0 Voltage Range Common-Mode Power Supply V/V 500 min V/V +13.9 V +13.8 min -12.9 -12.7 V max 4.0 3.9 3.8 V min 1.6 1.8 2.0 V max -10V VCM +10V 100 83 dB 79 min 10V VS 16V 93 83 dB 79 min Rejection Ratio PSRR 1000 -13.2 Supply = +5V (Note 10) CMRR A max 2.2 Rejection Ratio www.national.com 2 11061 Version 4 Revision 4 Print Date/Time: 2011/10/24 14:05:16 VO Parameter Output Voltage LM6162 Limit (Note 8) Typical (Note 7) Conditions +13.5 V +13.3 min -13.4 -13.0 -12.7 V max 4.2 3.5 V 3.3 min 1.3 1.7 2.0 V max Sourcing 65 30 mA 20 min Sinking 65 30 20 mA min 5.0 6.5 mA 6.8 max Supply = 15V, RL = 2 k +14.2 Swing VO Output Voltage Swing Supply = +5V and RL = 2 k (Note 10) IOSC Output Short Circuit Current IS Units Supply Current AC Electrical Characteristics These limits apply for supply voltage = 15V, VCM = 0V, RL 100 k, and CL 5 pF, unless otherwise specified. Limits in standard typeface are for TA = TJ = 25C; limits in boldface type apply over the Operating Temperature Range. Symbol GBW Parameter Gain-Bandwidth Product Conditions f = 20 MHz Slew Rate LM6162 Limit (Note 8) Units 80 55 MHz min 100 Supply = 5V SR Typical (Note 7) AV = +2 (Note 11) 70 300 MHz 200 180 Supply = 5V V/s min 200 V/s PBW Power Bandwidth VOUT = 20 VPP 4.5 MHz ts Settling Time 10V step, to 0.1% 100 ns m Phase Margin AV = +2 45 deg Differential Gain NTSC, AV = +2 <0.1 % AV = -1, RL = 2 k Differential Phase NTSC, AV = +2 <0.1 deg en Input Noise Voltage f = 10 kHz 10 nV/Hz in Input Noise Current f = 10 kHz 1.2 pA/Hz Note 1: Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the device beyond its rated operating conditions. Note 2: The ESD protection circuitry between the inputs will begin to conduct when the differential input voltage reaches 8V. Note 3: a) In addition, the voltage between the V+ pin and either input pin must not exceed 36V. b) When the voltage applied to an input pin is driven more than 3V below the negative supply pin voltage, a substrate diode begins to conduct. Current through this pin must then be kept less than 20 mA to limit damage from self-heating. Note 4: Although the output current is internally limited, continuous short-circuit operation at elevated ambient temperature can result in exceeding the maximum allowed junction temperature of 150C. Note 5: This value is the average voltage that the weakest pin combinations can withstand and still conform to the datasheet limits. The test circuit used consists of the human body model, 100 pF in series with 1500. Note 6: The typical thermal resistance, junction-to-ambient, of the molded plastic DIP (N package) is 105C/W. For the molded plastic SO (M package), use 155 C/W. All numbers apply for packages soldered directly into a printed circuit board. Note 7: Typical values are for TJ = 25C, and represent the most likely parametric norm. Note 8: Limits are guaranteed, by testing or correlation. Note 9: Voltage Gain is the total output swing (20V) divided by the magnitude of the input signal required to produce that swing. 3 11061 Version 4 Revision 4 Print Date/Time: 2011/10/24 14:05:16 www.national.com LM6162 Symbol LM6162 Note 10: For single-supply operation, the following conditions apply: V+= 5V, V- = 0V, VCM = 2.5V, VOUT = 2.5V. Pin 1 and Pin 8 (VOS Adjust pins) are each connected to pin 4 (V-) to realize maximum output swing. This connection will increase the offset voltage. Note 11: VIN = 10V step. For 5V supplies, VIN = 1V step. Note 12: A military RETS electrical test specification is available on request. www.national.com 4 11061 Version 4 Revision 4 Print Date/Time: 2011/10/24 14:05:16 LM6162 Typical Performance Characteristics RL = 10 k, TA = 25C unless otherwise noted Supply Current vs Supply Voltage Common-Mode Rejection Ratio 1106116 1106117 Power Supply Rejection Ratio Gain-Bandwidth Product vs Supply Voltage 1106119 1106118 Gain-Bandwidth Product vs Load Capacitance Propagation Delay, Rise and Fall Times 1106121 1106120 5 11061 Version 4 Revision 4 Print Date/Time: 2011/10/24 14:05:16 www.national.com LM6162 Slew Rate vs Supply Voltage Slew Rate vs Load Capacitance 1106122 1106123 Overshoot vs Load Capacitance Output Impedance (Open-Loop) 1106125 1106124 Voltage Gain vs Load Resistance Voltage Gain vs Supply Voltage 1106127 1106126 www.national.com Differential Gain (Note) 6 11061 Version 4 Revision 4 Print Date/Time: 2011/10/24 14:05:16 LM6162 Differential Gain (Note 13) Differential Phase (Note 13) 1106105 1106104 Note 13: Differential gain and differential phase measured for four series LM6162 op amps configured with gain of +2 each, in series with a 1:16 attenuator and an LM6321 buffer. Error added by LM6321 is negligible. Test performed using Tektronix Type 520 NTSC test system. Step Response; Av = +2 Input Noise Voltage 1106106 1106128 Input Noise Current Power Bandwidth 1106129 1106130 7 11061 Version 4 Revision 4 Print Date/Time: 2011/10/24 14:05:16 www.national.com LM6162 Open-Loop Frequency Response Open-Loop High-Frequency Response 1106108 1106109 Common-Mode Input Voltage Limits Output Saturation Voltage 1106132 1106131 Bias Current vs Common-Mode Voltage 1106133 www.national.com 8 11061 Version 4 Revision 4 Print Date/Time: 2011/10/24 14:05:16 LM6162 Simplified Schematic 1106101 Power supply bypassing is not as critical for LM6162 as it is for other op amps in its speed class. However, bypassing will improve the stability and transient response of the LM6162, and is recommended for every design. 0.01 F to 0.1 F ceramic capacitors should be used (from each supply "rail" to ground); if the device is far away from its power supply source, an additional 2.2 F to 10 F of tantalum may be required for extra noise reduction. Keep all leads short to reduce stray capacitance and lead inductance, and make sure ground paths are low-impedance, especially where heavier currents will be flowing. Stray capacitance in the circuit layout can cause signal coupling from one pin, input or lead to another, and can cause circuit gain to unintentionally vary with frequency. Breadboarded circuits will work best if they are built using generic PC boards with a good ground plane. If the op amps are used with sockets, as opposed to being soldered into the circuit, the additional input capacitance may degrade circuit frequency response. At low gains (+2 or -1), a feedback capacitor Cf from output to inverting input will compensate for the phase lag caused by capacitance at the inverting input. Typically, values from 2 pF to 5 pF work well; however, best results can be obtained by observing the amplifier pulse response and optimizing Cf for the particular layout. Application Tips The LM6162 has been decompensated for a wider gainbandwidth product than the LM6361. However, the LM6162 still offers stability at gains of 2 (and -1) or greater over the specified ranges of temperature, power supply voltage, and load. Since this decompensation involved reducing the emitter-degeneration resistors in the op amp's input stage, the DC precision has been increased in the form of lower offset voltage and higher open-loop gain. Other op amps in this family include the LM6361, LM6364, and LM6365. If unity-gain stability is required, the LM6361 should be used. The LM6364 has been decompensated for operation at gains of 5 or more, with corresponding greater gain-bandwidth product (125 MHz, typical) and DC precision. The fully-uncompensated LM6365 offers gain-bandwidth product of 725 MHz, typical, and is stable for gains of 25 or more. All parts in this family, regardless of compensation, have the same high slew rate of 300 V/s (typ). The LM6162 is unusually tolerant of capacitive loads. Most op amps tend to oscillate when their load capacitance is greater than about 200 pF (in low-gain circuits). However, load capacitance on the LM6162 effectively increases its compensation capacitance, thus slowing the op amp's response and reducing its bandwidth. The compensation is not ideal, though, and ringing may occur in low-gain circuits with large capacitive loads. 9 11061 Version 4 Revision 4 Print Date/Time: 2011/10/24 14:05:16 www.national.com LM6162 Typical Applications Offset Voltage Adjustment 1106111 Inverting Amplifier, 30 MHz Bandwidth 1106112 Operation on 15V supplies results in wider bandwidth, 50 MHz (typ). Video Cable Driver 1106113 * Network required when operating on supply voltage over 5V, for overvoltage protection of LM6321. If 5V supplies are used, omit network and connect output of LM6162 directly to input of LM6321. www.national.com 10 11061 Version 4 Revision 4 Print Date/Time: 2011/10/24 14:05:16 LM6162 Physical Dimensions inches (millimeters) unless otherwise noted Ceramic Dual-In-Line Package (J) Order Number LM6162J/883 NS Package Number J08A Molded Dual-In-Line Package (N) Order Number LM6162N NS Package Number N08E 11 11061 Version 4 Revision 4 Print Date/Time: 2011/10/24 14:05:16 www.national.com LM6162 10-Pin Ceramic Flatpak Order Number LM6162W/883 NS Package Number W10A www.national.com 12 11061 Version 4 Revision 4 Print Date/Time: 2011/10/24 14:05:16 LM6162 Notes 13 11061 Version 4 Revision 4 Print Date/Time: 2011/10/24 14:05:16 www.national.com LM6162 High Speed Operational Amplifier Notes For more National Semiconductor product information and proven design tools, visit the following Web sites at: www.national.com Products Design Support Amplifiers www.national.com/amplifiers WEBENCH(R) Tools www.national.com/webench Audio www.national.com/audio App Notes www.national.com/appnotes Clock and Timing www.national.com/timing Reference Designs www.national.com/refdesigns Data Converters www.national.com/adc Samples www.national.com/samples Interface www.national.com/interface Eval Boards www.national.com/evalboards LVDS www.national.com/lvds Packaging www.national.com/packaging Power Management www.national.com/power Green Compliance www.national.com/quality/green Switching Regulators www.national.com/switchers Distributors www.national.com/contacts LDOs www.national.com/ldo Quality and Reliability www.national.com/quality LED Lighting www.national.com/led Feedback/Support www.national.com/feedback Voltage References www.national.com/vref Design Made Easy www.national.com/easy www.national.com/powerwise Applications & Markets www.national.com/solutions Mil/Aero www.national.com/milaero PowerWise(R) Solutions Serial Digital Interface (SDI) www.national.com/sdi Temperature Sensors www.national.com/tempsensors SolarMagicTM www.national.com/solarmagic PLL/VCO www.national.com/wireless www.national.com/training PowerWise(R) Design University THE CONTENTS OF THIS DOCUMENT ARE PROVIDED IN CONNECTION WITH NATIONAL SEMICONDUCTOR CORPORATION ("NATIONAL") PRODUCTS. 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