TLE2426 - Texas Instruments

TLE2426 Precision Virtual Ground

In signal-conditioning applications utilizing a single power source, a reference voltage equal to one-half the supply voltage is required for termination of all analog signal grounds. Texas Instruments presents a precision virtual ground whose output voltage is always equal to one-half the input voltage, the TLE2426 “rail splitter.” Voltage − V D Excellent.

Features

nique combination of a high-performance, micropower operational amplifier and a precision- 2 trimmed divider on a single silicon chip results in a precise VO/VI ratio of 0.5 while sinking and sourcing current. The TLE2426 provides a low- impedance output with 20 mA of sink and source capability while drawing less than 280 µA 0 0 0.25 0.5 0.75 1 t − Time − s of supply current over the full input range of 4 V to 40 V. A designer need not pay the price in terms of board space for a conventional signal ground consisting of resistors, capacitors, operational amplifiers, and voltage re.