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+5V Precision VOLTAGE REFERENCE

FEATURES

G OUTPUT VOLTAGE: +5V ±0.2% max G EXCELLENT TEMPERATURE STABILITY: 10ppm/ °C max (–40°C to +85°C) G LOW NOISE: 10 µVPP max (0.1Hz to 10Hz) G EXCELLENT LINE REGULATION: 0.01%/V max G EXCELLENT LOAD REGULATION: 0.008%/mA max G LOW SUPPLY CURRENT: 1.4mA max G SHORT-CIRCUIT PROTECTED G WIDE SUPPLY RANGE: 8V to 40V G INDUSTRIAL TEMPERATURE RANGE: –40°C to +85°C G PACKAGE OPTIONS: DIP-8, SO-8

APPLICATIONS

G CONSTANT CURRENT SOURCE/SINK G DIGITAL VOLTMETERS G V/F CONVERTERS G A/D AND D/A CONVERTERS G PRECISION CALIBRATION STANDARD G TEST EQUIPMENT

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 Digital- to-Analog (D/A) converters, and digital voltmeters. VOUT REF02 VIN Trim GND +5V Reference with Trimmed Output R POT 10kΩ (Optional) Output

3 Temp

SBVS003B – JANUARY 1993 – REVISED JANUARY 2005 www.ti.com 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 © 1993-2005, Texas Instruments Incorporated 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.

SBVS003Bwww.ti.com SPECIFICATIONS ELECTRICAL At TA = +25°C and VIN = +15V power supply, unless otherwise noted. REF02A REF02B PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS Change with Temperature(1, 2) (∆VOT ) –40°C to +85°C 0.05 0.19 0.05 0.13 % OUTPUT VOLTAGE DRIFT (3) –40°C to +85°C (TCVO )4 1 5 4 1 0 ±ppm/°C LONG-TERM STABILITY 2000h Test First 1000h 100 100 ±ppm Second 1000h 50 50 ±ppm OUTPUT ADJUSTMENT RANGE R POT = 10kΩ (6) ±3 ±6 ✻✻ % CHANGE IN V O TEMP COEFFICIENT WITH OUTPUT ADJUSTMENT (–55°C to +125°C) R POT = 10kΩ 0.7 ✻ ppm/% OUTPUT VOLTAGE NOISE 0.1Hz to 10Hz(5) 41 0 ✻✻ µVPP LINE REGULATION (4) VIN = 8V to 33V 0.006 0.010 ✻✻ %/V –40°C to +85°CV IN = 8.5V to 33V 0.008 0.012 ✻✻ LOAD REGULATION (4) IL = 0mA to +10mA 0.005 0.010 ✻ 0.008 %/mA –40°C to +85°CI L = 0mA to +10mA 0.007 0.012 ✻ 0.010 TURN-ON SETTLING TIME To ±0.1% 5 ✻ µs of Final Value QUIESCENT CURRENT No Load 1.0 1.4 ✻✻ mA LOAD CURRENT (SOURCE) 10 21 ✻✻ mA LOAD CURRENT (SINK) –0.3 –0.5 ✻✻ mA SHORT-CIRCUIT CURRENT VOUT = 0 30 ✻ mA POWER DISSIPATION No Load 15 21 ✻✻ mW TEMPERATURE VOLTAGE OUTPUT (7) 630 ✻ mV TEMPERATURE COEFFICIENT of Temperature Pin Voltage –55°C to +125°C 2.1 mV/ °C TEMPERATURE RANGE Specification REF02A, B, C –40 +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 VV VO MAX MIN= − ×5 100 (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.

SBVS003B www.ti.com Operating Temperature Storage Temperature Range ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATIONS Top View DIP/SO NC VIN Temp GND NC NC V OUT Trim ELECTROSTATIC DISCHARGE SENSITIVITY This integrated circuit can be damaged by ESD. Texas Instru- ments 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) PACKAGE SPECIFICATION MAX DRIFT DRAWING TEMPERATURE PRODUCT V OUT at 25°C (ppm/ °C) PACKAGE DESIGNATOR RANGE REF02AU 5V ±15mV ±15 SO-8 D –40°C to +85°C REF02BU 5V ±10mV ±10 SO-8 D –40°C to +85°C REF02AP 5V ±15mV ±15 DIP-8 P –40°C to +85°C REF02BP 5V ±10mV ±10 DIP-8 P –40°C to +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.

SBVS003Bwww.ti.com TYPICAL PERFORMANCE CURVES AT TA = +25°C, unless otherwise noted. OUTPUT WIDEBAND NOISE vs BANDWIDTH (0.1Hz to frequency indicated) Frequency (Hz) Output Noise (µVPP ) 10 100 1k 10k 100k 1M 100 OUTPUT CHANGE DUE TO THERMAL SHOCK Time (s) Percent Change in Output Voltage (%) 0.035 0.03 0.025 0.02 0.015 0.01 0.005 –1 0 0 1 02 03 04 05 0 6 0 Device immersed in 75°C oil bath TA = 25°C TA = 75°C VIN = 15V MAXIMUM LOAD CURRENT vs INPUT VOLTAGE Maximum Load Current (mA) Input Voltage (V) 5 1 0 1 52 02 5 500mW Maximum Dissipation Short Circuit Protection TA = +25°C LINE REGULATION vs SUPPLY VOLTAGE Input Voltage (V) Line Regulation (%/V) 6 6.5 7 7.5 8 8.5 9 9.5 10 85°C 25°C 125°C –55°C LINE REGULATION vs SUPPLY VOLTAGE Input Voltage (V) 0.03 0.025 0.02 0.015 0.01 0.005 Line Regulation (%/V) TA = 25°C 10 15 20 25 30 LINE REGULATION vs FREQUENCY Line Regulation (dB) Frequency (Hz) 10 100 1k 10k 100k 1M Line Regulation (%/V) 0.0003 0.001 0.003 0.01 0.031 0.1 0.31 1.0 3.1 10.0 VS = 15V TA = +25°C

SBVS003B www.ti.com TYPICAL PERFORMANCE CURVES (Cont.) At TA = +25°C, unless otherwise noted. NORMALIZED LOAD REGULATION ( ∆IL = 10mA) vs TEMPERATURE –60 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 Temperature (°C) –40 –20 0 20 40 60 80 100 120 140 Load Reg (T) / Load Reg (25°C) VIN = 15V NORMALIZED LINE REGULATION vs TEMPERATURE –60 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 Temperature (°C) –40 –20 0 20 40 60 80 100 120 140 Line Reg (T) / Line Reg (25°C) REF02 V OUT Temperature Volt 5.002 5.0015 5.001 5.0005 4.9995 4.999 4.9985 4.998 4.9975 –60 –40 –20 0 20 40 60 80 100 120 140 MAXIMUM LOAD CURRENT vs TEMPERATURE Temperature (°C) Maximum Load Current (mA) –60 –40 –20 0 20 40 60 80 100 120 140 VIN = 15V QUIESCENT CURRENT vs TEMPERATURE Temperature (°C) 1.1 1.08 1.06 1.04 1.02 1.0 0.98 Quiescent Current (mA) –60 –40 –20 0 20 40 60 80 100 120 140 VIN = 15V TYPICAL TEMPERATURE VOLTAGE OUTPUT vs TEMPERATURE Temperature Voltage Output (mV) Temperature (°C) –60 –40 –20 0 20 40 60 80 100 120 140 830 780 730 680 630 580 530 480 430 VIN = 15V

SBVS003Bwww.ti.com TYPICAL PERFORMANCE CURVES (Cont.) At TA = +25°C, unless otherwise noted. LONG-TERM STABILITY (1st 1000h) Hours 0 24 48 72 96 168 192 240 336 408 504 576 696 744 864 9121008 ppm 200 150 100 –50 –100 –150 –200 –250 LONG-TERM STABILITY (2nd 1000h) Hours 1008 1080 1176 1272 1344 1440 1536 1608 1680 1776 1848 1944 ppm 200 150 100 –50 –100 –150 –200 –250 0 1944 1008504 LONG TERM STABILITY (2000h) Hours ppm 300 200 100 –100 –200 –300

www.ti.com 11-Apr-2013 Addendum-Page 1 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3) Op Temp (°C) Top-Side Markings (4) Samples 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.

www.ti.com 11-Apr-2013 Addendum-Page 2 (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. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.

*All dimensions are nominal Device Package Type Package Drawing Pins SPQ Reel Diameter (mm) Reel Width W1 (mm) (mm) (mm) (mm) (mm) W (mm) Pin1 Quadrant PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 Pack Materials-Page 1

*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 PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 Pack Materials-Page 2

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