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 similar way other amplifier characteristics can be tailored to the application.

■ PROGRAMMABLE ELECTRICAL CHARACTERISTICS

■ BATTERY POWERED OPERATION

■ LOW SUPPLY CURRENT (250µA/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 CROSSOVER DISTORTION

■ OVERLOAD PROTECTION FOR INPUTS AND OUTPUTS