TS271M

·OFFSET NULL CAPABILITY (by external
   compensation)
·DYNAMIC CHARACTERISTICS
   ADJUSTABLE ISET
·CONSUMPTION CURRENT AND DYNAM
   PARAMETERS ARE STABLE REGARDING
   THE VOLTAGE POWER SUPPLY
   VARIATIONS
·OUTPUT VOLTAGE CAN SWING TO
   GROUND
·VERY LARGE ISET RANGE
·STABLE AND LOW OFFSET VOLTAGE
·THREE INPUT OFFSET VOLTAGE
   SELECTIONS

The TS271M is a low cost, low power single oper-tional amplifier designed to operate with single or dual supplies. This operational amplifier uses the ST silicon gate CMOS process giving it an excel- lent consumption-speed ratio. This amplifier is ide- ally suited for low consumption applications.

The power of the TS271M supply is externally programmable with a resistor connected between pins 8 and 4. It al- lows to choose the best consumption-speed ratio and supply current can be minimized according to the required speed. This device is specified for the following ISET current values : 1.5µA, 25µA, 130µA.

This CMOS amplifier of the TS271M offers very high input imped- ance and extremely low input currents. The major advantage versus JFET devices is the very low in- put currents drift with temperature (see figure 3).