PROGRAMMABLE QUAD OPERATIONAL AMPLIFIERS
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 similar way other amplifier characteristics can be tailored to the application.
â Programmable electrical characteristics
â Battery powered operation
â Low supply current (350µA/amplifier)
â Gain-bandwidth product : 1MHz
â Large dc voltage gain : 120dB
â Low noise voltage : 28nV/âVHz
â Wide power supply range : ±1.5V to ±22V
â Classe AB output stage. No crossover distortion
â Overload protection for inputs and outputs
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