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LM246N Arkusz danych(PDF) 1 Page - STMicroelectronics |
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LM246N Arkusz danych(HTML) 1 Page - STMicroelectronics |
1 / 9 page November 1997 PROGRAMMABLE QUAD BIPOLAR OPERATIONAL AMPLIFIERS . PROGRAMMABLE ELECTRICAL CHARAC- TERISTICS . BATTERY POWERED OPERATION . LOW SUPPLY CURRENT (250 µA/amplifier) . GAIN-BANDWIDTH PRODUCT : 1MHz . LARGE DC VOLTAGE GAIN : 120dB . LOW NOISE VOLTAGE : 28nV/VHz . WIDE POWER SUPPLY RANGE : ±1.5V to ±22V . CLASSE AB OUTPUT STAGE. NO CROSS- OVER DISTORTION . OVERLOAD PROTECTION FOR INPUTS AND OUTPUTS DESCRIPTION The LM346 consists of four independent, high gain, internally compensated, low power programmable amplifiers. Two external resistors (Rset) allow the user to program the gain-bandwith product, slew rate, supply current, input bias current, input offset current and input noise. For example the user can trade-off supply current for bandwidth or optimize noise figure for a given source resistance. In a simi- lar way other amplifier characteristics can be tailored to the application. Except for the two programming pins at the end of the package the LM346 pin out is the same as the LM324 and LM348. PROGRAMMING EQUATIONS : Total supply current = 1mA (Iset =10 µA) Gain-bandwidth product = 1MHz (Iset =10 µA) Slew rate = 0.5V/ µs(Iset =10µA) Input bias current ≈30 nA (Iset =10µA) Iset = current into pin 8 and pin 9 (see schematic diagram) Iset = VCC + − V CC − − 0.6V Rset 4 5 6 7 9 10 11 12 13 15 1 2 3 8 16 14 Output 1 Inverting input 1 Non-invertinginput 1 Non-invertinginput 2 Inverting input 2 Output 2 Set Output 4 Inverting input 4 Non-invertinginput 4 VCC Non-invertinginput 3 Inverting input 3 Output 3 Set V CC + PIN CONNECTIONS (top view) ORDER CODES Part Number Temperature Range Package ND LM146 –55 oC, +125oC •• LM246 –40 oC, +105oC •• LM346 0 oC, +70oC •• Example : LM246N N DIP16 (Plastic Package) D SO16 (Plastic Micropackage) LM146 LM246 - LM346 1/9 |
Podobny numer części - LM246N |
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Podobny opis - LM246N |
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