TLE2426 Datasheet PDF - Texas Instruments

1 SLOS098D AUGUST 1991 REVISED MAY 19981 POST OFFICE BOX 655303 DALLAS, Texas 75265D1/2 VI Virtual Ground for Analog SystemsDSelf-Contained 3-terminal TO-226 AAPackageDMicropower Operation.. 170 A Typ, VI = 5 VDWide VI V to 40 VDHigh Output-Current Capability Source.. 20 mA Typ Sink.. 20 mA TypDExcellent Output Regulation 45 V Typ at IO = 0 to 10 mA +15 V Typ at IO = 0 to + 10 mADLow-Impedance Output.. TypDNoise Reduction Pin (D, JG, and PPackages Only) descriptionIn signal-conditioning applications utilizing asingle power source, a reference voltage equal toone-half the supply voltage is required fortermination of all analog signal grounds. TexasInstruments presents a precision virtual groundwhose output voltage is always equal to one-halfthe input voltage, the TLE2426 rail splitter.

2 The unique combination of a high-performance,micropower operational amplifier and a precision-trimmed divider on a single silicon chip results ina precise VO/VI ratio of while sinking andsourcing current. The TLE2426 provides a low-impedance output with 20 mA of sink and sourcecapability while drawing less than 280 Aof supply current over the full input range of 4 V to 40 V. A designer need not pay the price in terms of boardspace for a conventional signal ground consisting of resistors, capacitors, operational amplifiers, and voltagereferences. 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 the addition of an external capacitor (CNR), peak-to-peak noise is reduced while line ripple rejection output tolerance for a single 5-V or 12-V system is better than 1% with over the full 40-V input rejection exceeds 12 bits of accuracy.

3 Whether the application is for a data acquisition front end, analogsignal termination, or simply a precision voltage reference, the TLE2426 eliminates a major source of OPTIONSPACKAGED DEVICESCHIPTASMALLOUTLINE(D)CERAMICDIP(J G)PLASTIC (LP)PLASTICDIP(P)CHIPFORM (Y)0 C to 70 CTLE2426CD TLE2426 CLPTLE2426 CPPlease be aware that an important notice concerning availability, standard warranty, and use in critical applications ofTexas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. ! " #$ % ! " &$'( # ! ) !%* )$#!" # ! "&%# # ! " &% !+% !% " %, " "! $ % !""! ) ) - !.* )$#! & #%"" / ) %" ! %#%"" (. #($)%!%"! / (( & %!% "*Copyright 1998, Texas Instruments Vt Time sINPUT/OUTPUT TRANSFER CHARACTERISTICS10VO+VI2 VIVO SLOS098D AUGUST 1991 REVISED MAY 19982 POST OFFICE BOX 655303 DALLAS, Texas 75265 40 C to 85 CTLE2426ID TLE2426 ILPTLE2426 IPTLE2426Y 55 C to 125 CTLE2426 MDTLE2426 MJGTLE2426 MLPTLE2426 MPThe D and LP packages are available taped and reeled in the commercial temperature range only.

4 Add R suffixto the device type (e. g., TLC2426 CDR). Chips are tested at 25 C. SLOS098D AUGUST 1991 REVISED MAY 19983 POST OFFICE BOX 655303 DALLAS, Texas 75265description (continued)The C-suffix devices are characterized for operation from 0 C to 70 C. The I suffix devices are characterizedfor operation from 40 C to 85 C. The M suffix devices are characterized over the full military temperature rangeof 55 C to 125 REDUCTIONNCNCNCD, JG, OR P PACKAGE(TOP VIEW)NC No internal connectionLP PACKAGE(TOP VIEW)TLE2426Y chip informationThis chip, properly assembled, displays characteristics similar to the TLE2426C. Thermal compression orultrasonic bonding may be used on the doped aluminum bonding pads.

5 The chips may be mounted withconductive epoxy or a gold-silicon PAD ASSIGNMENTSCHIP THICKNESS:15 MILS TYPICALBONDING PADS:4 4 MILS MINIMUMTJmax = 150 CTOLERANCES ARE 10%.ALL DIMENSIONS ARE (1)(2)(8)(3)NOISEREDUCTIONINCOMMON+1 NOTE A: Both bonding pads numbered 1, both numbered 2,and both numbered 3, must be bonded out to thecorresponding functions pin.(3)(3)(2)(2)(1)(1)(8) SLOS098D AUGUST 1991 REVISED MAY 19984 POST OFFICE BOX 655303 DALLAS, Texas 75265absolute maximum ratings over operating free-air temperature (unless otherwise noted) Continuous input voltage, VI 40 V.. Continuous filter trap voltage 40 V.. Output current, IO 80 mA.. Duration of short-circuit current at (or below) 25 C (see Note 1) unlimited.

6 Continuous total power dissipation See Dissipation Rating Table.. Operating free-air temperature range, TA: C suffix 0 C to 70 C.. I suffix 40 C to 85 C.. M suffix 55 C to 125 C.. Storage temperature range, Tstg 65 C to 150 C.. Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D or P package 260 C.. Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: JG or LP package 300 C.. Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, andfunctional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is notimplied.

7 Exposure to absolute-maximum-rated conditions for extended periods may affect device 1: The output may be shorted to either supply. Temperature and/or supply voltages must be limited to ensure that the maximum dissipationrating is not RATING TABLEPACKAGETA 25 CDERATING FACTORTA = 70 CTA = 85 CTA = 125 CPACKAGETA 25 CPOWER RATINGDERATING FACTORABOVE TA = 25 CTA = 70 CPOWER RATINGTA = 85 CPOWER RATINGTA = 125 CPOWER RATINGD725 mW/ C464 mW377 mW145 mWJG1050 mW/ C672 mW546 mW210 mWLP775 mW/ C496 mW403 mW155 mWP1000 mW/ C640 mW520 mW200 mWrecommended operating conditionsC SUFFIXI SUFFIXM SUFFIXUNITMINMAXMINMAXMINMAXUNITI nput voltage, VI440440440 VOperating free-air temperature, TA070 4085 55125 C SLOS098D AUGUST 1991 REVISED MAY 19985 POST OFFICE BOX 655303 DALLAS.

8 Texas 75265electrical characteristics at specified free-air temperature, VI = 5 V, IO = 0 (unless otherwise noted)PARAMETERTEST CONDITIONSTA TLE2426 CUNITPARAMETERTEST CONDITIONSTA MINTYPMAXUNITVI = 4 voltageVI = 5 V25 voltageVI = 40 = 5 VFull coefficient of output voltageFull range25ppm/ CTemperature coefficient of output voltageFull range25ppm/ CSupply currentNo loadVI = 5 V25 C170300 ASupply currentNo loadVI = 4 to 40 VFull range400 AOutput voltage regulation IO = 0 to 10 mA25 C 45 160 Output voltage regulation (sourcing current) IO = 0 to 10 mAFull range 250 V(sourcing current) IO = 0 to 20 mA25 C 150 450 VOutput voltage regulation IO = 0 to 10 mA25 C15 160 Output voltage regulation (sinking current) IO = 0 to 10 mAFull range 250 V(sinking current)

9 IO = 0 to 20 mA25 C65 235 VOutput impedance25 Noise-reduction impedance25 C110k Short-circuit currentSinking current,VO = 5 V25 C26mAShort-circuit currentSourcing current,VO = 025 C 47mAOutput noise voltage, rmsf = 10 Hz to 10 kHzCNR = 025 C120 VOutput noise voltage, rmsf = 10 Hz to 10 kHzCNR = 1 F25 C30 VVO to , IO = 10 mACL = 025 C290 Output voltage current step responseVO to , IO = 10 mACL = 100 pF25 C275sOutput voltage current step responseVO to , IO = 10 mACL = 025 C400 sVO to , IO = 10 mACL = 100 pF25 C390 Step responseVI = 0 to 5 V, VO to = 100 pF25 C20 sStep responseVI = 0 to 5 V, VO to = 100 pF25 C160 s Full range is 0 C to 70 C. The listed values are not production tested. SLOS098D AUGUST 1991 REVISED MAY 19986 POST OFFICE BOX 655303 DALLAS, Texas 75265electrical characteristics at specified free-air temperature, VI = 12 V, IO = 0 (unless otherwise noted)PARAMETERTEST CONDITIONSTA TLE2426 CUNITPARAMETERTEST CONDITIONSTA MINTYPMAXUNITVI = 4 voltageVI = 12 V25 voltageVI = 40 = 12 VFull coefficient of output voltageFull range35ppm/ CTemperature coefficient of output voltageFull range35ppm/ CSupply currentNo loadVI = 12 V25 C195300 ASupply currentNo loadVI = 4 to 40 VFull range400 AOutput voltage regulation IO = 0 to 10 mA25 C 45 160 Output voltage regulation (sourcing current) IO = 0 to 10 mAFull range 250 V(sourcing current)

10 IO = 0 to 20 mA25 C 150 450 VOutput voltage regulation IO = 0 to 10 mA25 C15 160 Output voltage regulation (sinking current) IO = 0 to 10 mAFull range 250 V(sinking current) IO = 0 to 20 mA25 C65 235 VOutput impedance25 Noise-reduction impedance25 C110k Short-circuit currentSinking current,VO = 12 V25 C31mAShort-circuit currentSourcing current,VO = 025 C 70mAOutput noise voltage, rmsf = 10 Hz to 10 kHzCNR = 025 C120 VOutput noise voltage, rmsf = 10 Hz to 10 kHzCNR = 1 F25 C30 VVO to ,IO = 10 mACL = 025 C290 Output voltage current step responseVO to ,IO = 10 mACL = 100 pF25 C275sOutput voltage current step responseVO to , IO = 10 mACL = 025 C400 sVO to , IO = 10 mACL = 100 pF25 C390 Step responseVI = 0 to 12 V, VO to = 100 pF25 C20 sStep responseVI = 0 to 12 V, VO to = 100 pF25 C120 s Full range is 0 C to 70 C.