REF5020-EP, REF5025-EP REF5040-EP, REF5050-EP www.ti.com SBOS471A – APRIL 2010 – REVISED JUNE 2010 LOW-NOISE, VERY LOW DRIFT, PRECISION VOLTAGE REFERENCE Check for Samples: REF5020-EP, REF5025-EP, REF5040-EP, REF5050-EP SUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONS FEATURES 1 • 2 • • • LOW TEMPERATURE DRIFT: 5 ppm/°C (max) HIGH ACCURACY: 0.08% (max) LOW NOISE: 3 mVPP/V HIGH OUTPUT CURRENT: ±10 mA • • • • • • • APPLICATIONS • • • • • • 16-BIT DATA ACQUISITION SYSTEMS ATE EQUIPMENT INDUSTRIAL PROCESS CONTROL MEDICAL INSTRUMENTATION OPTICAL CONTROL SYSTEMS PRECISION INSTRUMENTATION DESCRIPTION The REF50xx is a family of low-noise, low-drift, very high precision voltage references. These references are capable of both sinking and sourcing, and are very robust with regard to line and load changes. (1) +5V Input Signal 0V to 4V Controlled Baseline One Assembly/Test Site One Fabrication Site Available in Military (–55°C/125°C) Temperature Range (1) Extended Product Life Cycle Extended Product-Change Notification Product Traceability Custom temperature ranges available +5V D PACKAGE (TOP VIEW) R1 50W VDD +IN OPA365 ADS8326 C1 1.2nF -IN REF GND REF5040 +5V VIN CBYPASS 1mF GND 8 DNC(1) 7 NC(2) 3 6 VOUT 4 5 TRIM/NR DNC(1) 1 VIN 2 TEMP GND REF50xx VOUT C2 22mF NOTES: (1) DNC = Do not connect. (2) NC = No internal connection. 1 2 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. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2010, Texas Instruments Incorporated REF5020-EP, REF5025-EP REF5040-EP, REF5050-EP SBOS471A – APRIL 2010 – REVISED JUNE 2010 www.ti.com 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. ORDERING INFORMATION (1) PRODUCT OUTPUT VOLTAGE PACKAGE (2) ORDERABLE PART NUMBER TOP-SIDE MARKING REF5020MDREP 2.048 V SOIC-D REF5020MDREP 5020EP REF5025MDTEP 2.5 V SOIC-D REF5025MDTEP 5025EP REF5040MDREP 4.096 V SOIC-D REF5040MDREP 5040EP REF5050MDREP 5V SOIC-D REF5050MDREP 5050EP (1) (2) For the most current package and ordering information see the Package Option Addendum at the end of this document, or see the TI web site at www.ti.com. Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. ABSOLUTE MAXIMUM RATINGS (1) PARAMETER REF50xx Input Voltage 18 V Output Short-Circuit 30 mA Operating Temperature Range –55 to 125 °C Storage Temperature Range –65 to 150 °C 150 °C Human Body Model (HBM) 3000 V Charged Device Model (CDM) 1000 V Junction Temperature (TJ max) ESD Rating (1) 2 UNIT Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not implied. Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated Product Folder Link(s): REF5020-EP REF5025-EP REF5040-EP REF5050-EP REF5020-EP, REF5025-EP REF5040-EP, REF5050-EP www.ti.com SBOS471A – APRIL 2010 – REVISED JUNE 2010 ELECTRICAL CHARACTERISTICS: PER DEVICE Boldface limits apply over the specified temperature range, TA = –55°C to 125°C. At TA = 25°C, ILOAD = 0, CL = 1 mF, and VIN = (VOUT + 0.2 V) to 18 V, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNIT –0.05 0.05 % –0.08 0.08 % REF5020 (VOUT = 2.048V) (1) OUTPUT VOLTAGE Output Voltage VOUT 2.7 V < VIN < 18 V Initial Accuracy Over Temperature 2.048 V NOISE Output Voltage Noise f = 0.1 Hz to 10 Hz 6 mVPP REF5025 (VOUT = 2.5 V) OUTPUT VOLTAGE Output Voltage VOUT 2.5 Initial Accuracy –0.05 V 0.05 % NOISE Output Voltage Noise f = 0.1 Hz to 10 Hz 7.5 mVPP REF5040 (VOUT = 4.096V) OUTPUT VOLTAGE Output Voltage VOUT 4.096 Initial Accuracy Over Temperature V –0.05 0.05 % –0.08 0.08 % NOISE Output Voltage Noise f = 0.1 Hz to 10 Hz 12 mVPP REF5050 (VOUT = 5 V) OUTPUT VOLTAGE Output Voltage VOUT 5 Initial Accuracy Over Temperature V –0.05 0.05 % –0.08 0.08 % NOISE Output Voltage Noise (1) f = 0.1 Hz to 10 Hz 15 mVPP For VOUT ≤ 2.5 V, the minimum supply voltage is 2.7 V. Copyright © 2010, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): REF5020-EP REF5025-EP REF5040-EP REF5050-EP 3 REF5020-EP, REF5025-EP REF5040-EP, REF5050-EP SBOS471A – APRIL 2010 – REVISED JUNE 2010 www.ti.com ELECTRICAL CHARACTERISTICS: ALL DEVICES Boldface limits apply over the specified temperature range, TA = –55°C to 125°C. At TA = 25°C, ILOAD = 0, CL = 1 mF, and VIN = (VOUT + 0.2 V) to 18 V, unless otherwise noted. REF50xx PARAMETER CONDITIONS MIN TYP MAX UNIT REF5025 4 6.5 ppm/°C REF5050 4 6.5 ppm/°C All other devices 3 5 ppm/°C ppm/V OUTPUT VOLTAGE TEMPERATURE DRIFT Output Voltage Temperature Drift dVOUT/dT LINE REGULATION Line Regulation dVOUT/dVIN REF5020 (1) VIN = 2.7 V to 18V 0.1 1 All other devices VIN = VOUT + 0.2 V 0.1 1 ppm/V 1 3 ppm/V –10 mA < ILOAD < +10 mA, VIN = 3 V 20 30 ppm/mA –10 mA < ILOAD < +10 mA, VIN = VOUT + 0.75 V 20 30 ppm/mA 60 ppm/mA Over Temperature LOAD REGULATION Load Regulation dVOUT/dILOAD REF5020 All other devices Over Temperature SHORT-CIRCUIT CURRENT Short-Circuit Current ISC VOUT = 0 25 mA TEMP PIN Voltage Output At TA = 25°C Temperature Sensitivity 575 mV 2.64 mV/°C 200 ms TURN-ON SETTLING TIME Turn-On Settling Time To 0.1% with CL = 1 mF POWER SUPPLY Supply Voltage VS See Note (1) VOUT + 0.2 (1) Quiescent Current 0.8 Over Temperature 18 V 1 mA 1.25 mA 125 °C TEMPERATURE RANGE Specified Range –55 Operating Range –55 Thermal Resistance (1) 4 125 150 qJA °C °C/W For VOUT ≤ 2.5 V, the minimal supply voltage is 2.7 V. Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated Product Folder Link(s): REF5020-EP REF5025-EP REF5040-EP REF5050-EP REF5020-EP, REF5025-EP REF5040-EP, REF5050-EP www.ti.com SBOS471A – APRIL 2010 – REVISED JUNE 2010 TYPICAL CHARACTERISTICS At TA = 25°C, ILOAD = 0, and VS = VOUT + 0.2 V, unless otherwise noted. For VOUT ≤ 2.5 V, the minimum supply voltage is 2.7 V. TEMPERATURE DRIFT (–40°C to +125°C) Drift (ppm/°C) Drift (ppm/°C) Figure 1. Figure 2. OUTPUT VOLTAGE INITIAL ACCURACY OUTPUT VOLTAGE ACCURACY vs TEMPERATURE 7.50 8.00 6.50 7.00 5.50 6.00 4.50 5.00 3.50 4.00 2.50 3.00 1.50 2.00 0.50 1.00 0 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 5.00 0 Population (%) Population (%) TEMPERATURE DRIFT (0°C to +85°C) 0.05 Population (%) Output Voltage Accuracy (%) 0.04 0.03 0.02 0.01 0 -0.01 -0.02 -0.03 Output Initial Accuracy (%) Figure 3. Copyright © 2010, Texas Instruments Incorporated 0.05 0.04 0.03 0.02 0.01 0 -0.01 -0.02 -0.03 -0.04 -0.05 -0.04 -0.05 -50 -25 0 25 50 Temperature (°C) 75 100 125 Figure 4. Submit Documentation Feedback Product Folder Link(s): REF5020-EP REF5025-EP REF5040-EP REF5050-EP 5 REF5020-EP, REF5025-EP REF5040-EP, REF5050-EP SBOS471A – APRIL 2010 – REVISED JUNE 2010 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = 25°C, ILOAD = 0, and VS = VOUT + 0.2 V, unless otherwise noted. For VOUT ≤ 2.5 V, the minimum supply voltage is 2.7 V. DROPOUT VOLTAGE vs LOAD CURRENT 160 0.8 140 0.7 120 0.6 Dropout Voltage (V) PSRR (dB) POWER-SUPPLY REJECTION RATIO vs FREQUENCY 100 80 60 40 20 +125°C +25°C 0.5 -40°C 0.4 0.3 0.2 0.1 0 0 10 100 1k Frequency (Hz) 10k 100k -15 -5 0 5 Load Current (mA) -10 10 Figure 5. Figure 6. REF5025 OUTPUT VOLTAGE vs LOAD CURRENT TEMP PIN OUTPUT VOLTAGE vs TEMPERATURE 15 0.9 2.50125 TEMP Pin Output Voltage (V) 2.50100 Output Voltage (V) 2.50075 2.50050 2.50025 +25°C 2.50000 2.49975 2.49950 -40°C 2.49925 +125°C 2.49900 0.7 0.6 0.5 0.4 0.3 2.49875 -10 -5 0 Load Current (mA) Figure 7. 6 0.8 Submit Documentation Feedback 5 10 -50 -25 0 25 50 Temperature (°C) 75 100 125 Figure 8. Copyright © 2010, Texas Instruments Incorporated Product Folder Link(s): REF5020-EP REF5025-EP REF5040-EP REF5050-EP REF5020-EP, REF5025-EP REF5040-EP, REF5050-EP www.ti.com SBOS471A – APRIL 2010 – REVISED JUNE 2010 TYPICAL CHARACTERISTICS (continued) At TA = 25°C, ILOAD = 0, and VS = VOUT + 0.2 V, unless otherwise noted. For VOUT ≤ 2.5 V, the minimum supply voltage is 2.7 V. QUIESCENT CURRENT vs INPUT VOLTAGE QUIESCENT CURRENT vs TEMPERATURE 1050 Quiescent Current (mA) 1000 950 900 850 800 750 700 650 600 -50 -25 0 25 50 Temperature (°C) 75 100 125 Figure 9. Figure 10. LINE REGULATION vs TEMPERATURE SHORT-CIRCUIT CURRENT vs TEMPERATURE 0.5 35 Sourcing 30 Short-Circuit Current (mA) Line Regulation (ppm/V) 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 25 20 Sinking 15 10 5 -0.4 0 -0.5 -50 -25 0 25 50 Temperature (°C) Figure 11. Copyright © 2010, Texas Instruments Incorporated 75 100 125 -50 -25 0 25 50 Temperature (°C) 75 100 125 Figure 12. Submit Documentation Feedback Product Folder Link(s): REF5020-EP REF5025-EP REF5040-EP REF5050-EP 7 REF5020-EP, REF5025-EP REF5040-EP, REF5050-EP SBOS471A – APRIL 2010 – REVISED JUNE 2010 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = 25°C, ILOAD = 0, and VS = VOUT + 0.2 V, unless otherwise noted. For VOUT ≤ 2.5 V, the minimum supply voltage is 2.7 V. STARTUP (REF5025, CL = 1 mF) 1mV/div NOISE VIN 2V/div VOUT 1V/div 1s/div 40 µs/div Figure 13. Figure 14. STARTUP (REF5025, CL = 10 mF) LOAD TRANSIENT (CL = 1mF, IOUT = 1mA) +1mA VIN ILOAD 5V/div -1mA -1mA 1mA/div VOUT 5mV/div VOUT 1V/div 400 µs/div 20ms/div Figure 15. Figure 16. LOAD TRANSIENT (CL = 1mF, IOUT = 10mA) LOAD TRANSIENT (CL = 10mF, IOUT = 1mA) ILOAD 10mA/div +1mA +10mA +10mA ILOAD -1mA -1mA 1mA/div -10mA VOUT VOUT 5mV/div 2mV/div 8 20ms/div 100ms/div Figure 17. Figure 18. Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated Product Folder Link(s): REF5020-EP REF5025-EP REF5040-EP REF5050-EP REF5020-EP, REF5025-EP REF5040-EP, REF5050-EP www.ti.com SBOS471A – APRIL 2010 – REVISED JUNE 2010 TYPICAL CHARACTERISTICS (continued) At TA = 25°C, ILOAD = 0, and VS = VOUT + 0.2 V, unless otherwise noted. For VOUT ≤ 2.5 V, the minimum supply voltage is 2.7 V. LOAD TRANSIENT (CL = 10mF, IOUT = 10mA) ILOAD 10mA/div LINE TRANSIENT (CL = 1mF) +10mA -10mA -10mA VIN 500mV/div VOUT 2mV/div VOUT 5mV/div 100ms/div 20ms/div Figure 19. Figure 20. LINE TRANSIENT (CL = 10mF) 500mV/div 5mV/div VIN VOUT 100ms/div Figure 21. Copyright © 2010, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): REF5020-EP REF5025-EP REF5040-EP REF5050-EP 9 REF5020-EP, REF5025-EP REF5040-EP, REF5050-EP SBOS471A – APRIL 2010 – REVISED JUNE 2010 www.ti.com APPLICATION INFORMATION The REF50xx is family of low-noise, precision bandgap voltage references that are specifically designed for excellent initial voltage accuracy and drift. Figure 22 shows a simplified block diagram of the REF50xx. VIN REF50xx R2 OUTPUT ADJUSTMENT USING THE TRIM/NR PIN (10mA at +25°C) VOUT R4 10kW R3 TRIM/NR R5 60kW The REF50xx family of voltage references features extremely low dropout voltage. With the exception of the REF5020, which has a minimum supply requirement of 2.7 V, these references can be operated with a supply of 200 mV above the output voltage in an unloaded condition. For loaded conditions, a typical dropout voltage versus load plot is shown in Figure 6 of the Typical Characteristics. R1 aT TEMP aT SUPPLY VOLTAGE 1.2V 1kW The REF50xx provides a very accurate, factory-trimmed voltage output. However, VOUT can be adjusted using the trim and noise reduction pin (TRIM/NR, pin 5). Figure 24 shows a typical circuit that allows an output adjustment of ±15 mV +VSUPPLY GND REF50xx DNC Figure 22. REF50xx Simplified Block Diagram VIN TEMP +VSUPPLY REF50xx CBYPASS 1mF to 10mF DNC NC TEMP 10kW 470kW Figure 23 shows the typical connections for the REF50xx. A supply bypass capacitor ranging between 1 mF to 10 mF is recommended. A 1-mF to 50-mF output capacitor (CL) must be connected from VOUT to GND. The ESR value of CL must be less than or equal to 1.5 Ω to ensure output stability. To minimize noise, the recommended ESR of CL is between 1 Ω and 1.5 Ω. VIN NC VOUT GND TRIM/NR BASIC CONNECTIONS DNC DNC VOUT GND TRIM/NR VOUT CL 1mF to 50mF 1kW Figure 24. VOUT Adjustment Using the TRIM/NR Pin The REF50xx allows access to the bandgap through the TRIM/NR pin. Placing a capacitor from the TRIM/NR pin to GND (see Figure 25) in combination with the internal R3 and R4 resistors creates a low-pass filter. A capacitance of 1 mF creates a low-pass filter with the corner frequency between 10 Hz and 20 Hz. Such a filter decreases the overall noise measured on the VOUT pin by half. Higher capacitance results in a lower filter cutoff frequency, further reducing output noise. Note that use of this capacitor increases startup time. Figure 23. Basic Connections 10 Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated Product Folder Link(s): REF5020-EP REF5025-EP REF5040-EP REF5050-EP REF5020-EP, REF5025-EP REF5040-EP, REF5050-EP www.ti.com SBOS471A – APRIL 2010 – REVISED JUNE 2010 The TEMP pin has high output impedance (see Figure 22). Loading this pin with a low-impedance circuit induces a measurement error; however, it does not have any effect on VOUT accuracy. To avoid errors caused by low-impedance loading, buffer the TEMP pin output with a suitable low-temperature drift op amp, such as the OPA333, OPA335, or OPA376, as shown in Figure 26. +VSUPPLY REF50xx DNC DNC VIN NC TEMP VOUT GND TRIM/NR C1 1mF +V Figure 25. Noise Reduction Using the TRIM/NR Pin REF50xx DNC VTEMP 2.6mV/°C TEMPERATURE DRIFT OPA (1) VIN TEMP DNC NC VOUT GND TRIM/NR The REF50xx is designed for minimal drift error, which is defined as the change in output voltage over temperature. The drift is calculated using the box method, as described by the following equation: Drift + ǒV V OUT Ǔ * V OUTMIN Temp Range OUTMAX NOTE: (1) Low drift op amp, such as the OPA333, OPA335, or OPA376. Figure 26. Buffering the TEMP Pin Output 106(ppm) (1) The REF50xx features a maximum drift coefficient of 3 ppm/°C for the high-grade version, and 8 ppm/°C for the standard-grade. POWER DISSIPATION The REF50xx family is specified to deliver current loads of ±10 mA over the specified input voltage range. The temperature of the device increases according to the equation: TJ = TA + PD × qJA TEMPERATURE MONITORING The temperature output terminal (TEMP, pin 3) provides a temperature-dependent voltage output with approximately 60-kΩ source impedance. As seen in Figure 8, the output voltage follows the nominal relationship: VTEMP PIN = 509 mV + 2.64 × T(°C) This pin indicates general chip temperature, accurate to approximately ±15°C. Although it is not generally suitable for accurate temperature measurements, it can be used to indicate temperature changes or for temperature compensation of analog circuitry. A temperature change of 30°C corresponds to an approximate 79 mV change in voltage at the TEMP pin. Copyright © 2010, Texas Instruments Incorporated (2) Where: TJ = Junction temperature (°C) TA = Ambient temperature (°C) PD = Power dissipated (W) qJA = Junction-to-ambient thermal resistance (°C/W) The REF50xx junction temperature must not exceed the absolute maximum rating of +150°C. NOISE PERFORMANCE Typical 0.1-Hz to 10-Hz voltage noise for each member of the REF50xx family is specified in the Electrical Characteristics: Per Device table. The noise voltage increases with output voltage and operating temperature. Additional filtering can be used to improve output noise levels, although care should be taken to ensure the output impedance does not degrade performance. Submit Documentation Feedback Product Folder Link(s): REF5020-EP REF5025-EP REF5040-EP REF5050-EP 11 REF5020-EP, REF5025-EP REF5040-EP, REF5050-EP SBOS471A – APRIL 2010 – REVISED JUNE 2010 www.ti.com APPLICATION CIRCUITS NEGATIVE REFERENCE VOLTAGE DATA ACQUISITION For applications requiring a negative and positive reference voltage, the REF50xx and OPA735 can be used to provide a dual-supply reference from a 5-V supply. Figure 27 shows the REF5020 used to provide a 2.5-V supply reference voltage. The low drift performance of the REF50xx complements the low offset voltage and zero drift of the OPA735 to provide an accurate solution for split-supply applications. Care must be taken to match the temperature coefficients of R1 and R2. Data acquisition systems often require stable voltage references to maintain accuracy. The REF50xx family features low noise, very low drift, and high initial accuracy for high-performance data converters. Figure 28 shows the REF5040 in a basic data acquisition system. +5V Input Signal 0V to 4V +5V R1 50W ADS8326 C1 1.2nF +5V VDD +IN OPA365 -IN REF GND REF5020 DNC VIN DNC REF5040 +5V NC TEMP VOUT GND TRIM/NR +2V CBYPASS 1mF 1mF R1 10kW VIN GND VOUT C2 22mF R2 10kW Figure 28. Basic Data Acquisition System +5V OPA735 -2V -5V NOTE: Bypass capacitors not shown. Figure 27. The REF5020 and OPA735 Create Positive and Negative Reference Voltages 12 Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated Product Folder Link(s): REF5020-EP REF5025-EP REF5040-EP REF5050-EP PACKAGE OPTION ADDENDUM www.ti.com 19-Jun-2010 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp (3) Samples (Requires Login) REF5020MDREP ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR Contact TI Distributor or Sales Office REF5040MDREP ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR Contact TI Distributor or Sales Office REF5050MDREP ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR Request Free Samples V62/10613-01XE ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR Contact TI Distributor or Sales Office V62/10613-02XE ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR Contact TI Distributor or Sales Office V62/10613-03XE ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR Request Free Samples (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. (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. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. 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