+5V Precision VOLTAGE REFERENCE - Texas …

1 +5V PrecisionVOLTAGE REFERENCEFEATURES OUTPUT VOLTAGE : +5V max EXCELLENT TEMPERATURE STABILITY:10ppm/ C max ( 40 C to +85 C) LOW NOISE: 10 VPP max ( to 10Hz) EXCELLENT LINE max EXCELLENT LOAD max LOW SUPPLY CURRENT: max SHORT-CIRCUIT PROTECTED WIDE SUPPLY RANGE: 8V to 40V INDUSTRIAL TEMPERATURE RANGE: 40 C to +85 C PACKAGE OPTIONS: DIP-8, SO-8 APPLICATIONS Precision REGULATORS CONSTANT CURRENT SOURCE/SINK DIGITAL VOLTMETERS V/F CONVERTERS A/D AND D/A CONVERTERS Precision CALIBRATION STANDARD TEST EQUIPMENTDESCRIPTIONThe REF02 is a Precision 5V VOLTAGE REFERENCE .

2 The drift islaser trimmed to 10ppm/ C max over the extended industrialand military temperature range. The REF02 provides a stable5V output that can be externally adjusted over a 6% rangewith minimal effect on temperature stability. The REF02operates from a single supply with an input range of 8V to 40 Vwith a very low current drain of 1mA, and excellent temperaturestability due to an improved design. Excellent line and loadregulation, low noise, low power, and low cost make theREF02 the best choice whenever a 5V VOLTAGE REFERENCE isrequired.

3 Available package options are DIP-8 and SO-8. TheREF02 is an ideal choice for portable instrumentation,temperature transducers, Analog-to-Digital (A/D) and Digital-to-Analog (D/A) converters, and digital +5V REFERENCE with Trimmed Output2654 RPOT10k (Optional)Output3 TempREF02 REF02 REF02 SBVS003B JANUARY 1993 REVISED JANUARY DATA information is current as of publication conform to specifications per the terms of Texas Instrumentsstandard warranty. Production processing does not necessarily includetesting of all 1993-2005, Texas Instruments IncorporatedPlease 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 trademarks are the property of their respective TA = +25 C and VIN = +15V power supply, unless otherwise VOLTAGEILOAD = with Temperature(1, 2) ( VOT) 40 C to +85 VOLTAGE DRIFT(3)

4 40 C to +85 C (TCVO)415410 ppm/ CLONG-TERM STABILITY2000h TestFirst 1000h100100 ppmSecond 1000h5050 ppmOUTPUT ADJUSTMENTRANGERPOT = 10k (6) 3 6 %CHANGE IN VO TEMPCOEFFICIENT WITHOUTPUT ADJUSTMENT( 55 C to +125 C)RPOT = 10k ppm/%OUTPUT VOLTAGE to 10Hz(5)410 VPPLINE REGULATION(4)VIN = 8V to %/V 40 C to +85 CVIN = to LOAD REGULATION(4)IL = 0mA to + 40 C to +85 CIL = 0mA to + SETTLING TIMETo sof Final ValueQUIESCENT CURRENTNo mALOAD CURRENT (SOURCE)1021 mALOAD CURRENT (SINK) mASHORT-CIRCUIT CURRENTVOUT = 030 mAPOWER DISSIPATIONNo Load1521 mWTEMPERATURE VOLTAGEOUTPUT(7)630 mVTEMPERATURE COEFFICIENTof Temperature Pin VOLTAGE 55 C to +125 CTEMPERATURE RANGES pecificationREF02A, B, C 40+85 CNOTES: (1) VOT is defined as the absolute difference between the maximum output and the minimum output VOLTAGE over the specified temperature range expressedas a percentage of 5V: VVVVOMAXMIN= 5100(2) VOT specification applies trimmed to + or untrimmed.

5 (3) TCVO is defined as VOT divided by the temperature range.(4) Line and load regulation specifications include the effect of self heating.(5) Sample tested.(6) 10k potentiometer connected between VOUT and ground with wiper connected to Trim pin. See figure on page 1.(7) Pin 3 is insensitive to capacitive loading. The temperature VOLTAGE will be modified by 7mV for each A of VOLTAGE .. +40 VOperating TemperatureP, U .. 40 C to +85 CStorage Temperature RangeP, U .. 65 C to +125 Output Short Circuit Duration (to Ground or VIN) .. IndefiniteJunction Temperature.

6 65 C to +150 JAP .. 120 C/WU .. 80 C/WLead Temperature (soldering, 60s) .. +300 CABSOLUTE MAXIMUM RATINGSPIN CONFIGURATIONSTop ViewDIP/SONCVINTempGNDNCNCVOUTTrim123487 65 ELECTROSTATICDISCHARGE SENSITIVITYThis integrated circuit can be damaged by ESD. Texas Instru-ments recommends that all integrated circuits be handled withappropriate precautions. Failure to observe proper handlingand installation procedures can cause damage can range from subtle performance degradationto complete device failure. Precision integrated circuits maybe more susceptible to damage because very small parametricchanges could cause the device not to meet its INFORMATION(1)PACKAGESPECIFICATIONMAX DRIFTDRAWINGTEMPERATUREPRODUCTVOUT at 25 C(ppm/ C)PACKAGEDESIGNATORRANGEREF02AU5V 15mV 15SO-8D 40 C to +85 CREF02BU5V 10mV 10SO-8D 40 C to +85 CREF02AP5V 15mV 15 DIP-8P 40 C to +85 CREF02BP5V 10mV 10 DIP-8P 40 C to +85 CNOTE.

7 (1) For the most current package and ordering information, see the Package Option Addendum located at the end of this data sheet, or see the TI websiteat PERFORMANCE CURVESAT TA = +25 C, unless otherwise WIDEBAND NOISEvs BANDWIDTH ( to frequency indicated)Frequency (Hz)Output Noise ( VPP)101001k10k100k1M1k100101 OUTPUT CHANGE DUE TO THERMAL SHOCKTime (s)Percent Change in Output VOLTAGE (%) 100 102030405060 Device immersedin 75 C oil bathTA =25 CTA =75 CVIN = 15 VMAXIMUM LOAD CURRENT vs INPUT VOLTAGEM aximum Load Current (mA)Input VOLTAGE (V)5 10 15202535302520151050500mWMaximumDissipat ionShort Circuit ProtectionTA = +25 CLINE REGULATION vs SUPPLY VOLTAGEI nput VOLTAGE (V)6543210 Line Regulation (%/V) C25 C125 C 55 CLINE REGULATION vs SUPPLY VOLTAGEI nput VOLTAGE (V) Regulation (%/V)5TA = 25 C1015202530 LINE REGULATION vs FREQUENCYLine Regulation (dB)Frequency (Hz)101001k10k100k1 MLine Regulation (%/V) = 15 VTA = +25 PERFORMANCE CURVES (Cont.)

8 At TA = +25 C, unless otherwise LOAD REGULATION ( IL = 10mA)vs TEMPERATURE ( C) 40 20020406080100 120 140 Load Reg (T) / Load Reg (25 C)VIN = 15 VNORMALIZED LINE REGULATION vs TEMPERATURE ( C) 40 20020406080100 120 140 Line Reg (T) / Line Reg (25 C)REF02 60 40 20020406080100 120 140 MAXIMUM LOAD CURRENT vs TEMPERATURET emperature ( C)302520151050 Maximum Load Current (mA) 60 40 20020406080100 120 140 VIN = 15 VQUIESCENT CURRENT vs TEMPERATURET emperature ( C) Current (mA) 60 40 20020406080100 120 140 VIN = 15 VTYPICAL TEMPERATURE VOLTAGE OUTPUTvs TEMPERATURET emperature VOLTAGE Output (mV)Temperature ( C) 60 40 20020406080100 120 140830780730680630580530480430 VIN = PERFORMANCE CURVES (Cont.)

9 At TA = +25 C, unless otherwise STABILITY (1st 1000h)Hours02448729616819224033640850457 66967448649121008ppm200150100500 50 100 150 200 250 LONG-TERM STABILITY (2nd 1000h)Hours10081080117612721344144015361 6081680177618481944ppm200150100500 50 100 150 200 250019441008504 LONG TERM STABILITY (2000h)Hoursppm3002001000 100 200 ADJUSTMENTThe REF02 trim terminal can be used to adjust the voltageover a 5V 150mV range. This feature allows the systemdesigner to trim system errors by setting the REFERENCE to avoltage other than 5V, including (1) for binary applica-tions (see circuit on page 1).

10 Adjustment of the output does not significantly affect thetemperature performance of the device. The temperaturecoefficient change is approximately C for 100mV ofoutput : (1) 20mV LSB for 8-bit APPLICATIONS5k OPA17710k 10k 15V+15V 5V+ FVOTemp6 FIGURE 2. 5V Precision 18V+18 VVINFIGURE 1. Burn-In STACKINGPROVIDES OUTSTANDING LINE REGULATIONBy stacking two REF01s and one REF02, a systems designercan achieve 5V, 15V, and 25V outputs. One very importantadvantage of this circuit is the near-perfect line regulation at5V and 15V outputs. This circuit can accept a 27V to 55 Vchange to the input with less than the noise VOLTAGE as achange to the output VOLTAGE .