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LM146 Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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LM146 Datasheet(HTML) 1 Page - National Semiconductor (TI) |
1 / 17 page LM146/LM346 Programmable Quad Operational Amplifiers General Description The LM146 series of quad op amps consists of four indepen- dent, high gain, internally compensated, low power, pro- grammable amplifiers. Two external resistors (R SET) allow the user to program the gain bandwidth product, slew rate, supply current, input bias current, input offset current and in- put noise. For example, the user can trade-off supply current for bandwidth or optimize noise figure for a given source re- sistance. In a similar way, other amplifier characteristics can be tailored to the application. Except for the two program- ming pins at the end of the package, the LM146 pin-out is the same as the LM124 and LM148. Features (I SET=10 µA) n Programmable electrical characteristics n Battery-powered operation n Low supply current: 350 µA/amplifier n Guaranteed gain bandwidth product: 0.8 MHz min n Large DC voltage gain: 120 dB n Low noise voltage: 28 n Wide power supply range: ±1.5V to ±22V n Class AB output stage–no crossover distortion n Ideal pin out for Biquad active filters n Input bias currents are temperature compensated Connection Diagram PROGRAMMING EQUATIONS Total Supply Current = 1.4 mA (I SET/10 µA) Gain Bandwidth Product = 1 MHz (I SET/10 µA) Slew Rate = 0.4V/µs (I SET/10 µA) Input Bias Current ≅ 50 nA (I SET/10 µA) I SET = Current into pin 8, pin 9 (see schematic-diagram) Dual-In-Line Package DS005654-1 Top View Order Number LM146J, LM146J/883, LM346M or LM346N See NS Package Number J16A, M16A or N16A May 1999 © 1999 National Semiconductor Corporation DS005654 www.national.com |
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