TLE2426-Q1

ąą TLE2426ĆQ1 THE RAIL SPLITTER" PRECISION VIRTUAL GROUND SGLS252A − AUGUST 2004 − REVISED JUNE 2008 D Qualified for Automotive Applications D 1/2 VI Virtual Ground for Analog Systems D Micropower Operation . . . 170 µA Typ, VI = 5 V D Wide VI Range . . . 4 V to 40 V D High Output-Current Capability − Source . . . 20 mA Typ − Sink . . . 20 mA Typ D Excellent Output Regulation − −102 µV Typ at IO = 0 to −10 mA − +49 µV Typ at IO = 0 to + 10 mA D Low-Impedance Output . . . 0.0075 Ω Typ D Noise Reduction Pin D PACKAGE (TOP VIEW) OUT 1 COMMON 2 IN 3 NC 4 8 NOISE REDUCTION 7 NC 6 NC 5 NC NC − No internal connection INPUT/OUTPUT TRANSFER CHARACTERISTICS 10 VI 8 VI VO VO + VI 2 description Voltage − V 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. 6 4 VO 2 The unique combination of a high-performance, micropower operational amplifier and a precision- 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 0 0 0.25 0.5 0.75 1 t − Time − s low-impedance output with 20 mA of sink and source capability while drawing less than 280 µA of supply current over the full input range of 4 V to 40 V...