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TLE2426MFKB Datasheet(PDF) 1 Page - Texas Instruments |
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TLE2426MFKB Datasheet(HTML) 1 Page - Texas Instruments |
1 / 30 page TLE2426, TLE2426Y THE RAIL SPLITTER" PRECISION VIRTUAL GROUND SLOS098D − AUGUST 1991 − REVISED MAY 1998 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D 1/2 VI Virtual Ground for Analog Systems D Self-Contained 3-terminal TO-226AA Package 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 − −45 µV Typ at IO = 0 to −10 mA − +15 µV Typ at IO = 0 to +10 mA D Low-Impedance Output . . . 0.0075 Ω Typ D Noise Reduction Pin (D, JG, and P Packages Only) description 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.” 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 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. 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 references. The performance and precision of the TLE2426 is available in an easy-to-use, space saving, 3-terminal LP package. For increased performance, the optional 8-pin packages provide a noise-reduction pin. With the addition of an external capacitor (CNR), peak-to-peak noise is reduced while line ripple rejection is improved. Initial output tolerance for a single 5-V or 12-V system is better than 1% with 3.6% over the full 40-V input range. Ripple rejection exceeds 12 bits of accuracy. Whether the application is for a data acquisition front end, analog signal termination, or simply a precision voltage reference, the TLE2426 eliminates a major source of system error. AVAILABLE OPTIONS PACKAGED DEVICES CHIP TA SMALL OUTLINE (D) CERAMIC DIP (JG) PLASTIC (LP) PLASTIC DIP (P) CHIP FORM (Y) 0 °C to 70°C TLE2426CD — TLE2426CLP TLE2426CP Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright 1998, Texas Instruments Incorporated VO VI 4 2 0 8 6 0 0.25 0.5 0.75 1 t − Time − s INPUT/OUTPUT TRANSFER CHARACTERISTICS 10 V O + V I 2 VI VO |
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