LM4250 Programmable Operational Amplifier General Description Features The LM4250 and LM4250C are extremely versatile programmable monolithic operational amplifiers. A single external master bias current setting resistor programs the input bias current, input offset current, quiescent power consumption, slew rate, input noise, and the gain-bandwidth product. The device is a truly general purpose operational amplifier. The LM4250C is identical to the LM4250 except that the LM4250C has its performance guaranteed over a 0˚C to +70˚C temperature range instead of the −55˚C to +125˚C temperature range of the LM4250. n n n n n n n n ± 1V to ± 18V power supply operation 3 nA input offset current Standby power consumption as low as 500 nW No frequency compensation required Programmable electrical characteristics Offset voltage nulling capability Can be powered by two flashlight batteries Short circuit protection Connection Diagrams Metal Can Package Dual-In-Line Package DS009300-5 Top View DS009300-2 Top View X5 Difference Amplifier 500 Nano-Watt X10 Amplifier DS009300-4 DS009300-3 Quiescent PD = 500 nW Quiescent PD = 0.6 mW © 2000 National Semiconductor Corporation DS009300 www.national.com LM4250 Programmable Operational Amplifier August 2000 LM4250 Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. (Note 3) LM4250 LM4250C ± 18V ± 18V Operating Temp. Range −55˚C ≤ TA ≤ +125˚C 0˚C ≤ TA ≤ +70˚C Differential Input Voltage ± 30V ± 15V ± 30V ± 15V Supply Voltage Input Voltage (Note 2) ISET Current Output Short Circuit Duration 150 nA 150 nA Continuous Continuous 150˚C 100˚C 150˚C 100˚C TJMAX H-Package N-Package J-Package 100˚C M-Package 100˚C Power Dissipation at TA = 25˚C H-Package (Still Air) (400 LF/Min Air Flow) 500 mW 300 mW 1200 mW 1200 mW N-Package J-Package 500 mW 1000 mW M-Package 600 mW 350 mW Thermal Resistance (Typical) θJA H-Package (Still Air) (400 LF/Min Air Flow) 165˚C/W 65˚C/W N-Package J-Package 165˚C/W 65˚C/W 130˚C/W 108˚C/W M-Package 108˚C/W 190˚C/W (Typical) θJC H-Package Storage Temperature Range 21˚C/W 21˚C/W −65˚C to +150˚C −65˚C to +150˚C Soldering Information Dual-In-Line Package Soldering (10 seconds) 260˚C Small Outline Package Vapor Phase (60 seconds) 215˚C Infrared (15 seconds) 220˚C See AN-450 “Surface Mounting Methods and Their Effect on Product Reliability” for other methods of soldering surface mount devices. ESD tolerance (Note 4) 800V Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. Note 2: For supply voltages less than ± 15V, the absolute maximum input voltage is equal to the supply voltage. Note 3: Refer to RETS4250X for military specifications. Note 4: Human body model, 1.5 kΩ in series with 100 pF. www.national.com 2 LM4250 Resistor Biasing Set Current Setting Resistor to V− ISET VS 0.1 µA 0.5 µA 1.0 µA 5 µA 10 µA ± 1.5V ± 3.0V ± 6.0V ± 9.0V ± 12.0V ± 15.0V 25.6 MΩ 5.04 MΩ 2.5 MΩ 492 kΩ 244 kΩ 55.6 MΩ 11.0 MΩ 5.5 MΩ 1.09 MΩ 544 kΩ 116 MΩ 23.0 MΩ 11.5 MΩ 2.29 MΩ 1.14 MΩ 176 MΩ 35.0 MΩ 17.5 MΩ 3.49 MΩ 1.74 MΩ 236 MΩ 47.0 MΩ 23.5 MΩ 4.69 MΩ 2.34 MΩ 296 MΩ 59.0 MΩ 29.5 MΩ 5.89 MΩ 2.94 MΩ Electrical Characteristics LM4250 (−55˚C ≤ TA ≤ +125˚C unless otherwise specified.) TA = TJ VS = ± 1.5V Parameter ISET = 1 µA Conditions Min ISET = 10 µA Max Min Max VOS RS ≤ 100 kΩ, TA = 25˚C 3 mV 5 mV IOS TA = 25˚C 3 nA 10 nA Ibias TA = 25˚C 7.5 nA 50 nA Large Signal Voltage RL = 100 kΩ, TA = 25˚C Gain VO = ± 0.6V, RL = 10 kΩ 40k 50k Supply Current TA = 25˚C 7.5 µA 80 µA Power Consumption TA = 25˚C 23 µW 240 µW VOS RS ≤ 100 kΩ 4 mV 6 mV TA = +125˚C 5 nA 10 nA TA = −55˚C 3 nA 10 nA IOS Ibias 7.5 nA ± 0.6V Input Voltage Range Large Signal Voltage Gain VO = ± 0.5V, RL = 100 kΩ 50 nA ± 0.6V 30k RL = 10 kΩ Output Voltage Swing 30k ± 0.6V RL = 100 kΩ ± 0.6V RL = 10 kΩ Common Mode Rejection Ratio RS ≤ 10 kΩ 70 dB Supply Voltage Rejection Ratio RS ≤ 10 kΩ 76 dB Supply Current 70 dB 76 dB 8 µA 90 µA VS = ± 15V Parameter Conditions ISET = 1 µA Min Max ISET = 10 µA Min Max VOS RS ≤ 100 kΩ, TA = 25˚C 3 mV 5 mV IOS TA = 25˚C 3 nA 10 nA Ibias TA = 25˚C 7.5 nA 50 nA Large Signal Voltage RL = 100 kΩ, TA = 25˚C Gain VO = ± 10V, RL = 10 kΩ Supply Current TA = 25˚C 10 µA 90 µA Power Consumption TA = 25˚C 300 µW 2.7 mW VOS RS ≤ 100 kΩ 4 mV 6 mV IOS TA = +125˚C 25 nA 25 nA TA = −55˚C 3 nA 10 nA 100k 100k Ibias 7.5 nA ± 13.5V Input Voltage Range 3 50 nA ± 13.5V www.national.com LM4250 Electrical Characteristics (Continued) VS = ± 15V Parameter Conditions ISET = 1 µA Min Large Signal Voltage VO = ± 10V, RL = 100 kΩ Gain RL = 10 kΩ Output Voltage Swing RL = 100 kΩ ISET = 10 µA Max Min Max 50k 50k ± 12V ± 12V RL = 10 kΩ Common Mode Rejection Ratio RS ≤ 10 kΩ 70 dB Supply Voltage Rejection Ratio RS ≤ 10 kΩ 76 dB Supply Current Power Consumption 70 dB 76 dB 11 µA 100 µA 330 µW 3 mW Electrical Characteristics LM4250C (0˚C ≤ TA ≤ +70˚C unless otherwise specified.) TA = TJ VS = ± 1.5V Parameter ISET = 1 µA Conditions Min ISET = 10 µA Max Min Max VOS RS ≤ 100 kΩ, TA = 25˚C 5 mV 6 mV IOS TA = 25˚C 6 nA 20 nA Ibias TA = 25˚C 10 nA 75 nA Large Signal Voltage Gain RL = 100 kΩ, TA = 25˚C 25k VO = ± 0.6V, RL = 10 kΩ Supply Current 25k TA = 25˚C 8 µA 90 µA Power Consumption TA = 25˚C 24 µW 270 µW VOS RS ≤ 10 kΩ 6.5 mV 7.5 mV IOS 8 nA 25 nA Ibias 10 nA 80 nA ± 0.6V Input Voltage Range Large Signal Voltage VO = ± 0.5V, RL = 100 kΩ Gain RL = 10 kΩ Output Voltage Swing ± 0.6V 25k 25k ± 0.6V RL = 100 kΩ ± 0.6V RL = 10 kΩ Common Mode Rejection Ratio RS ≤ 10 kΩ 70 dB 70 dB Supply Voltage Rejection Ratio RS ≤ 10 kΩ 74 dB 74 dB Supply Current Power Consumption 8 µA 90 µA 24 µW 270 µW VS = ± 15V Parameter Conditions ISET = 1 µA Min VOS RS ≤ 100 kΩ, TA = 25˚C Max ISET = 10 µA Min Max 5 mV 6 mV IOS TA = 25˚C 6 nA 20 nA Ibias TA = 25˚C 10 nA 75 nA Large Signal Voltage RL = 100 kΩ, TA = 25˚C Gain VO = ± 10V, RL = 10 kΩ Supply Current TA = 25˚C 11 µA Power Consumption TA = 25˚C 330 µW 3 mW VOS RS ≤ 100 kΩ 6.5 mV 7.5 mV IOS 8 nA 25 nA Ibias 10 nA 80 nA www.national.com 4 60k 60k 100 µA LM4250 Electrical Characteristics (Continued) VS = ± 15V Parameter Conditions ISET = 1 µA Min Max ± 13.5V Input Voltage Range Large Signal Voltage VO = ± 10V, RL = 100 kΩ Gain RL = 10 kΩ Output Voltage Swing RL = 100 kΩ ISET = 10 µA Min Max ± 13.5V 50k 50k ± 12V ± 12V RL = 10 kΩ Common Mode Rejection Ratio RS ≤ 10 kΩ 70 dB Supply Voltage Rejection Ratio RS ≤ 10 kΩ 74 dB Supply Current Power Consumption 70 dB 74 dB 11 µA 100 µA 330 µW 3 mW Typical Performance Characteristics Input Bias Current vs ISET Input Bias Current vs Temperature Input Offset Current vs Temperature DS009300-15 DS009300-16 Unnulled Input Offset Voltage Change vs ISET Unnulled Input Offset Voltage Change vs Temperature DS009300-18 DS009300-17 Peak to Peak Output Voltage Swing vs Load Resistance DS009300-20 DS009300-19 5 www.national.com LM4250 Typical Performance Characteristics Peak to Peak Output Voltage Swing vs Supply Voltage (Continued) Quiescent Current (Iq) vs Temperature Quiescent Current (Iq) vs ISET DS009300-23 DS009300-21 Slew Rate vs ISET DS009300-22 Gain Bandwidth Product vs ISET Open Loop Voltage Gain vs ISET DS009300-24 DS009300-25 Phase Margin vs ISET Input Noise Current (In) and Voltage (En) vs Frequency RSET vs ISET DS009300-27 DS009300-29 DS009300-28 www.national.com DS009300-26 6 LM4250 Typical Applications X5 Difference Amplifier 500 Nano-Watt X10 Amplifier DS009300-4 DS009300-3 Quiescent PD = 0.6 mW Quiescent PD = 500 nW Floating Input Meter Amplifier 100 nA full Scale DS009300-8 Quiescent PD = 1.8 µW *Meter movement (0–100 µA, 2 kΩ) marked for 0–100 nA full scale. 7 www.national.com LM4250 Typical Applications (Continued) X100 Instrumentation Amplifier 10 µW DS009300-9 Note 5: Quiescent PD = 10 µW. Note 6: R2, R3, R4, R5, R6 and R7 are 1% resistors. Note 7: R11 and C1 are for DC and AC common mode rejection adjustments. RSET Connected to V− RSET Connected to Ground DS009300-30 DS009300-11 DS009300-10 Transistor Current Sourcing Biasing FET Current Sourcing Biasing DS009300-13 DS009300-12 *R1 limits ISET maximum www.national.com 8 Offset Null Circuit DS009300-14 LM4250 Schematic Diagram DS009300-1 Ordering Information Temperature Range Military Commercial −55˚C ≤ TA ≤ +125˚C 0˚C ≤ TA ≤ +70˚C LM4250CN Package NSC Package Number 8-Pin N08E Molded DIP LM4250CM 8-Pin LM4250CMX Surface Mount M08A 8-Pin LM4250J-MIL J08E Ceramic DIP LM4250CH 8-Pin H08C Metal Can 9 www.national.com LM4250 Physical Dimensions inches (millimeters) unless otherwise noted Metal Can Package (H) Order Number LM4250CH NS Package Number H08C Ceramic Dual-In-Line Package (J) Order Number LM4250J-MIL NS Package Number J08A www.national.com 10 LM4250 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Small Outline Package (M) Order Number LM4250CM or LM4250CMX NS Package Number M08A Molded Dual-In-Line Package (N) Order Number LM4250CN NS Package Number N08E 11 www.national.com LM4250 Programmable Operational Amplifier Notes 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. National Semiconductor Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: [email protected] www.national.com National Semiconductor Europe Fax: +49 (0) 180-530 85 86 Email: [email protected] Deutsch Tel: +49 (0) 69 9508 6208 English Tel: +44 (0) 870 24 0 2171 Français Tel: +33 (0) 1 41 91 8790 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. 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