LM4250 LM4250 Programmable Operational Amplifier Literature Number: SNOSC17A
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.
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.
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.
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 specif
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.
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.
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.
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.
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.
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.
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.
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.
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