REF02 REF 02 REF 02 SBVS003B – JANUARY 1993 – REVISED JANUARY 2005 +5V Precision VOLTAGE REFERENCE FEATURES ● OUTPUT VOLTAGE: +5V ±0.2% max ● EXCELLENT TEMPERATURE STABILITY: 10ppm/°C max (–40°C to +85°C) ● LOW NOISE: 10µVPP max (0.1Hz to 10Hz) ● EXCELLENT LINE REGULATION: 0.01%/V max ● EXCELLENT LOAD REGULATION: 0.008%/mA max ● LOW SUPPLY CURRENT: 1.4mA max ● SHORT-CIRCUIT PROTECTED ● WIDE SUPPLY RANGE: 8V to 40V ● INDUSTRIAL TEMPERATURE RANGE: –40°C to +85°C ● PACKAGE OPTIONS: DIP-8, SO-8 DESCRIPTION The REF02 is a precision 5V voltage reference. The drift is laser trimmed to 10ppm/°C max over the extended industrial and military temperature range. The REF02 provides a stable 5V output that can be externally adjusted over a ±6% range with minimal effect on temperature stability. The REF02 operates from a single supply with an input range of 8V to 40V with a very low current drain of 1mA, and excellent temperature stability due to an improved design. Excellent line and load regulation, low noise, low power, and low cost make the REF02 the best choice whenever a 5V voltage reference is required. Available package options are DIP-8 and SO-8. The REF02 is an ideal choice for portable instrumentation, temperature transducers, Analog-to-Digital (A/D) and Digitalto-Analog (D/A) converters, and digital voltmeters. APPLICATIONS ● ● ● ● ● ● ● 2 PRECISION REGULATORS CONSTANT CURRENT SOURCE/SINK DIGITAL VOLTMETERS V/F CONVERTERS A/D AND D/A CONVERTERS PRECISION CALIBRATION STANDARD TEST EQUIPMENT VIN VOUT 6 Output REF02 3 Temp Trim GND 5 RPOT 10kΩ (Optional) 4 +5V Reference with Trimmed Output 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. All trademarks are the property of their respective owners. Copyright © 1993-2005, Texas Instruments Incorporated 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. www.ti.com SPECIFICATIONS ELECTRICAL At TA = +25°C and VIN = +15V power supply, unless otherwise noted. REF02A PARAMETER OUTPUT VOLTAGE Change with Temperature(1, 2) (∆VOT) –40°C to +85°C MIN TYP MAX MIN TYP MAX UNITS ILOAD = 0mA 4.985 5.0 5.015 4.990 ✻ 5.010 V 0.05 0.19 0.05 0.13 % 4 15 4 10 ±ppm/°C OUTPUT VOLTAGE DRIFT(3) –40°C to +85°C (TCVO) LONG-TERM STABILITY First 1000h Second 1000h REF02B CONDITIONS 2000h Test 100 50 100 50 ±ppm ±ppm ✻ % ✻ ppm/% OUTPUT ADJUSTMENT RANGE RPOT = 10kΩ(6) CHANGE IN VO TEMP COEFFICIENT WITH OUTPUT ADJUSTMENT (–55°C to +125°C) RPOT = 10kΩ 0.7 OUTPUT VOLTAGE NOISE 0.1Hz to 10Hz(5) 4 10 ✻ ✻ µVPP REGULATION(4) VIN = 8V to 33V VIN = 8.5V to 33V 0.006 0.008 0.010 0.012 ✻ ✻ ✻ ✻ %/V IL = 0mA to +10mA IL = 0mA to +10mA 0.005 0.007 0.010 0.012 ✻ ✻ 0.008 0.010 %/mA To ±0.1% of Final Value 5 No Load 1.0 LINE –40°C to +85°C LOAD REGULATION(4) –40°C to +85°C TURN-ON SETTLING TIME QUIESCENT CURRENT LOAD CURRENT (SOURCE) LOAD CURRENT (SINK) ±3 ±6 µs ✻ ✻ 1.4 ✻ mA 10 21 ✻ ✻ mA –0.3 –0.5 ✻ ✻ mA ✻ mA SHORT-CIRCUIT CURRENT VOUT = 0 30 POWER DISSIPATION No Load 15 TEMPERATURE VOLTAGE OUTPUT(7) 630 TEMPERATURE COEFFICIENT of Temperature Pin Voltage –55°C to +125°C 2.1 TEMPERATURE RANGE Specification REF02A, B, C ✻ –40 ✻ 21 ✻ ✻ mW mV mV/°C +85 ✻ ✻ °C NOTES: (1) ∆VOT is defined as the absolute difference between the maximum output and the minimum output voltage over the specified temperature range expressed as a percentage of 5V: V − VMIN ∆VO = MAX × 100 5V (2) ∆VOT specification applies trimmed to +5.000V or untrimmed. (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) 10kΩ 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 µA of loading. 2 REF02 www.ti.com SBVS003B ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATIONS Input Voltage ..................................................................................... +40V Operating Temperature P, U ................................................................................ –40°C to +85°C Storage Temperature Range P, U ................................................................................ –65°C to +125° Output Short Circuit Duration (to Ground or VIN) ........................ Indefinite Junction Temperature ....................................................... –65°C to +150° θJA P ......................................................................................... 120°C/W U ........................................................................................... 80°C/W Lead Temperature (soldering, 60s) ............................................... +300°C Top View DIP/SO NC 1 8 NC VIN 2 7 NC Temp 3 6 VOUT GND 4 5 Trim ELECTROSTATIC DISCHARGE SENSITIVITY This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. PACKAGE/ORDERING INFORMATION(1) PRODUCT VOUT at 25°C MAX DRIFT (ppm/°C) REF02AU REF02BU REF02AP REF02BP 5V±15mV 5V±10mV 5V±15mV 5V±10mV ±15 ±10 ±15 ±10 PACKAGE PACKAGE DRAWING DESIGNATOR SO-8 SO-8 DIP-8 DIP-8 D D P P SPECIFICATION TEMPERATURE RANGE –40°C –40°C –40°C –40°C to to to to +85°C +85°C +85°C +85°C NOTE: (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 website at www.ti.com. REF02 SBVS003B www.ti.com 3 TYPICAL PERFORMANCE CURVES AT TA = +25°C, unless otherwise noted. OUTPUT WIDEBAND NOISE vs BANDWIDTH (0.1Hz to frequency indicated) LINE REGULATION vs FREQUENCY 96 0.0003 VS = 15V TA = +25°C Line Regulation (dB) Output Noise (µVPP) 86 100 10 1 76 0.003 66 0.01 56 0.031 46 0.1 36 0.31 26 1.0 16 3.1 6 10 100 1k 10k 100k 1M 10.0 10 100 1k Frequency (Hz) 0.03 30 TA = 25°C VIN = 15V TA = 75°C 0.02 0.015 0.01 Device immersed in 75°C oil bath 0.005 100k 1M MAXIMUM LOAD CURRENT vs INPUT VOLTAGE 35 Maximum Load Current (mA) Percent Change in Output Voltage (%) OUTPUT CHANGE DUE TO THERMAL SHOCK 0.025 10k Frequency (Hz) 0.035 0 Short Circuit Protection 25 500mW Maximum Dissipation 20 15 10 TA = +25°C 5 0 –10 0 10 20 30 40 50 60 5 10 Time (s) 20 25 LINE REGULATION vs SUPPLY VOLTAGE 0.03 5 0.025 Line Regulation (%/V) 6 4 3 125°C 2 85°C 1 15 Input Voltage (V) LINE REGULATION vs SUPPLY VOLTAGE Line Regulation (%/V) 0.001 Line Regulation (%/V) 1k TA = 25°C 0.02 0.015 0.01 0.005 25°C –55°C 0 0 6 6.5 7 7.5 8 8.5 9 9.5 10 5 Input Voltage (V) 4 10 15 20 25 30 Input Voltage (V) REF02 www.ti.com SBVS003B TYPICAL PERFORMANCE CURVES (Cont.) At TA = +25°C, unless otherwise noted. NORMALIZED LOAD REGULATION (∆IL = 10mA) vs TEMPERATURE NORMALIZED LINE REGULATION vs TEMPERATURE 1.4 VIN = 15V 1.5 Line Reg (T) / Line Reg (25°C) Load Reg (T) / Load Reg (25°C) 1.6 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.6 0.4 –60 –40 –20 0 20 40 60 80 100 120 140 –60 –40 –20 0 Temperature (°C) 20 40 60 80 100 120 140 Temperature (°C) REF02 VOUT MAXIMUM LOAD CURRENT vs TEMPERATURE 30 5.002 Maximum Load Current (mA) 5.0015 5.001 Volt 5.0005 5 4.9995 4.999 4.9985 25 20 VIN = 15V 15 10 5 4.998 0 4.9975 –60 –40 –20 0 20 40 60 80 –60 –40 100 120 140 0 20 40 60 80 100 120 140 Temperature (°C) QUIESCENT CURRENT vs TEMPERATURE TYPICAL TEMPERATURE VOLTAGE OUTPUT vs TEMPERATURE 830 Temperature Voltage Output (mV) 1.1 1.08 Quiescent Current (mA) –20 Temperature 1.06 VIN = 15V 1.04 1.02 1.0 780 730 680 630 VIN = 15V 580 530 480 430 0.98 –60 –40 –20 0 20 40 60 80 –60 –40 100 120 140 REF02 SBVS003B –20 0 20 40 60 80 100 120 140 Temperature (°C) Temperature (°C) www.ti.com 5 TYPICAL PERFORMANCE CURVES (Cont.) At TA = +25°C, unless otherwise noted. LONG-TERM STABILITY (2nd 1000h) 200 150 150 100 100 50 50 0 ppm Hours 1944 1848 1776 1680 1608 1536 1440 1344 1272 1008 1008 864 912 696 744 504 576 336 408 192 240 –250 96 –200 –250 168 –200 48 –150 72 –100 –150 0 –100 1176 –50 1080 0 –50 24 ppm LONG-TERM STABILITY (1st 1000h) 200 Hours LONG TERM STABILITY (2000h) 300 200 ppm 100 0 –100 –200 –300 0 6 504 1008 Hours 1944 REF02 www.ti.com SBVS003B OUTPUT ADJUSTMENT The REF02 trim terminal can be used to adjust the voltage over a 5V ±150mV range. This feature allows the system designer to trim system errors by setting the reference to a voltage other than 5V, including 5.12V(1) for binary applications (see circuit on page 1). TYPICAL APPLICATIONS 2 VIN Adjustment of the output does not significantly affect the temperature performance of the device. The temperature coefficient change is approximately 0.7ppm/°C for 100mV of output adjustment. 0.1µF VO 6 +5V REF02 10kΩ 3 Temp Trim 5 GND NOTE: (1) 20mV LSB for 8-bit applications. 10kΩ 4 +15V +18V 2 VIN 5kΩ OPA177 –5V REF02 –15V FIGURE 2. ±5V Precision Reference. GND 4 –18V FIGURE 1. Burn-In Circuit. REFERENCE STACKING PROVIDES OUTSTANDING LINE REGULATION By stacking two REF01s and one REF02, a systems designer can achieve 5V, 15V, and 25V outputs. One very important advantage of this circuit is the near-perfect line regulation at 5V and 15V outputs. This circuit can accept a 27V to 55V change to the input with less than the noise voltage as a change to the output voltage. RB, a load bypass resistor, supplies current ISY for the 15V regulator. Any number of REF01s and REF02s can be stacked in this configuration. For example, if ten devices are stacked in this configuration, ten 5V or five 10V outputs are achieved. The line voltage may range from 100V to 130V. Care should be exercised to insure that the total load currents do not exceed the maximum usable current, which is typically 21mA. REF02 SBVS003B www.ti.com 7 PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan Lead/Ball Finish (2) MSL Peak Temp Op Temp (°C) Top-Side Markings (3) (4) REF02AP ACTIVE PDIP P 8 50 Green (RoHS & no Sb/Br) CU NIPDAU N / A for Pkg Type REF02AP REF02APG4 ACTIVE PDIP P 8 50 Green (RoHS & no Sb/Br) CU NIPDAU N / A for Pkg Type REF02AP REF02AU ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 REF 02AU REF02AU/2K5 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 REF 02AU REF02AU/2K5E4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 REF 02AU REF02AUE4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 REF 02AU REF02AUG4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 REF 02AU REF02BP ACTIVE PDIP P 8 50 Green (RoHS & no Sb/Br) CU NIPDAU N / A for Pkg Type REF02BP REF02BPG4 ACTIVE PDIP P 8 50 Green (RoHS & no Sb/Br) CU NIPDAU N / A for Pkg Type REF02BP REF02BU ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 REF 02BU REF02BU/2K5 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 REF 02BU REF02BU/2K5E4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 REF 02BU REF02BUE4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 REF 02BU REF02BUG4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 85 REF 02BU (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. Addendum-Page 1 Samples PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) Multiple Top-Side Markings will be inside parentheses. Only one Top-Side Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Top-Side Marking for that device. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. 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Addendum-Page 2 PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant REF02AU/2K5 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 REF02BU/2K5 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) REF02AU/2K5 SOIC D 8 2500 367.0 367.0 35.0 REF02BU/2K5 SOIC D 8 2500 367.0 367.0 35.0 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. 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