LM246N amplifier ic chip Integrated Circuit Chip PROGRAMMABLE QUAD BIPOLAR OPERATIONAL AMPLIFIERS
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LM146 LM246 - LM346 PROGRAMMABLE QUAD BIPOLAR OPERATIONAL AMPLIFIERS
DESCRIPTION The LM346consists 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 similar 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 = 10µA) Gain-bandwidthproduct = 1MHz (Iset = 10µA) Slew rate = 0.5V/µs (Iset = 10µA) Input bias current ≈30 nA (Iset = 10µA) Iset = current into pin 8 and pin 9 Iset = VCC + − VCC − − 0.6V / Rset
ABSOLUTE MAXIMUM RATINGS
Notes : 1. For supply voltages less than ±15V, the absolute maximum input voltage is equal to the supply voltage. 2. Any of the amplifier outputs can be shorted to ground indefinitly ; however more than one should not be simultaneously shorted as the maximum junction temperature will be exceeded.
PIN CONNECTIONS (top view)
SCHEMATIC DIAGRAM (1/4 LM146)
PACKAGE MECHANICAL DATA 16 PINS - PLASTIC DIP
16 PINS - PLASTIC MICROPACKAGE (SO)
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Product Tags: chip in electronics small scale integrated circuits |
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