LM146

可编程四路双极运算放大器 PROGRAMMABLE QUAD BIPOLAR OPERATIONAL AMPLIFIERS

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 CHARAC TERISTICS

.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 CROSS OVER DISTORTION

.OVERLOAD PROTECTION FOR INPUTS AND OUTPUTS